News

 

last modified: Sunday, 30-Jan-2011 19:29:35 CET

This "News" page documents which pages are currently being worked on, what is planned and what has been added recently. Although the pages are online since 2005, the "news" start in 2007.

 

Additions and Corrections

The record starts at February 18, 2007.
The entries in this table do not include corrections of typographical errors or additions to references.

Date Page Changes
2011-01-29 Agates

New sections, with numerous new images

2010-01-31 Alpine-Type Fissures

New section, with numerous new images

2010-01-30 Gwindel

Pink Quartz

Crystals - Macroscopic Structure

Crystal Habits

Additions to text, new image (Types of Gwindel)

Corrections to text

Additions to text

Additions to text

2010-01-27 Agate

Pink Quartz

Additions to text, new specimen (Sedimentary Rocks)

Corrections and additions to text

2010-01-09 Agate

Growth Forms

Physical Properties

Additions to text, new specimen (Brazil)

Additions to text (Scepter Quartz)

Additions to text

2010-01-04 Agate

Chalcedony

Growth Forms

New specimens (Germany, Formation)

New specimens (Malawi, Morocco)

New specimen, additions to text (Rainbow or Iris Quartz)

2009-12-31 Crystal Forms

Additions to text (Hexagonal Prism - m)

2009-12-29 Amethyst

Fixed a locality error (Afghanistan)

2009-11-09 Blue Quartz

Growth Forms

Image replaced by a better one (Introduction)

New specimen (Split Growth)

2009-11-08 Chemical Properties

Chalcedony

Smoky Quartz

Occurrence

Growth Forms
 

New specimen (Silicon)

New specimen (France)

Image replaced by a better one (Norway)

New specimens (Vein Quartz, Vein Quartz)

Additions, corrections, new specimens (Honeycomb Quartz, Growth Inhibition, Split Growth, Scepter quartz)

2009-10-19 Growth Forms
 

Additions, corrections, new specimens (Honeycomb Quartz, Skeleton Quartz)

2009-10-15 Agate

Amethyst

Growth Forms
 

Occurrence
 

Quartz as a Rock-Forming Mineral

New specimens (Germany, Hungary)

New specimen (Hungary)

Additions, corrections, new specimen (Honeycomb Quartz)

Additions to text, new specimens (Geodes and Cavities in Volcanic Rocks)

Additions to text, new specimens (Igneous Rocks)

2009-09-21 Occurrence
 

Growth Forms
 

Quartz as a Rock-Forming Mineral

New specimen (Veins and Pockets in Limestones, Marls and Dolomites)

New section, new specimen (Star Quartz or Quartz Stars)

New specimens (Igneous Rocks)

2009-09-20 Occurrence
 

Quartz as a Rock-Forming Mineral
 

Ferruginous Quartz

Amethyst

Additions to text, several new specimen (Geodes and Cavities in Volcanic Rocks)

Additions to text, several new specimen (Igneous Rocks, Metamorphic Rocks)

New specimen (Spain)

New specimen (U.S.A.)

2009-09-07 Occurrence
 
 

Quartz as a Rock-Forming Mineral
 

Growth Forms
 

The Silica Group

Smoky Quartz

Additions to text, several new specimen (Vein Quartz, Gangue Quartz, Miarole Pockets, Geodes and Cavities in Volcanic Rocks)

Additions to text, several new specimen (Igneous Rocks, Metamorphic Rocks, Sedimentary Rocks)

Additions to text, several new specimen (Growth Inhibition, Other, Other, Other)

New specimen (Cristobalite)

New specimen (Switzerland)

2009-08-21 The Silica Group

Occurrence

Gwindel

Additions and corrections to text.

Corrections.

Additions and corrections to text.

2009-07-28 Agate

Growth Forms

New specimen (Introduction)

Additions to text, new specimen (Other Growth Forms)

2009-07-23 Crystal Habits

Growth Forms

Inclusions

Additions, new specimen (Introduction)

New specimen (same as in Crystal Habits, Chlorite Group)

Additions, new specimens (Chlorite Group, Chlorite Group, same as in Crystal Habits)

2009-07-22 Inclusions

Additions and corrections (Iron Oxides and Hydroxides)

2009-07-20 Inclusions

Additions and corrections, new specimen (Pocket Clay and Sand)

2009-07-19 Links

I removed the page with URLs to other web sites ("link list"). Links are now only included on individual pages when their content is related to the topic of the respective pages.

2009-04-15 Occurrence

New specimens (Concretions in Sedimentary Rocks, Veins and Pockets in Limestones, Marls and Dolomites)

2009-04-13 Occurrence

New specimens and new section (Concretions and Nodules in Sedimentary Rocks)

2009-04-11 Growth Forms

New specimen and new section (Other Growth Forms)

2009-03-07 Quartz Crystals - Twinning

Corrections and additions to text, new figure.

2009-03-03 Citrine

Corrections and additions to text.

2009-03-02 Growth Forms

Partially rewritten and rearranged, moved Needle Quartz description to Crystal Habits, Artichoke and Sprouting Quartz subsumed under Split Growth.

2009-02-06 Inclusions

Chalcedony

Jasper

Occurrence

Growth Forms

Rose Quartz

Ouachita Mountains

Quartz as a Rock-Forming Mineral

Additions to text, new specimen (Chlorite Group).

New specimen (U.S.A.).

New specimen (Banded Jasper).

New specimen (Pegmatites and Pegmatite Pockets).

New specimen (Corroded Quartz).

Additions to text

Corrections

Additions to text, new images,
new specimen (Igneous Rocks).

2009-01-12 Ouachita Mountains

New chapter, new specimen, report on Arkansas quartz deposits.

2009-01-11 Blue Quartz

Additions to text

2009-01-10 Rose Quartz

Additions to text

2009-01-05 Crystal Habits

Corrections and additions (Cumberlandt Habit)

2009-01-04 Growth Forms

New specimens (Skeleton Quartz, Skeleton Quartz, Gitter Quartz)

2009-01-03 Rose Quartz

Inclusions

Additions to text.

Corrections and additions to text, reordering of topics. New specimens (Amphibole-Group, Chlorite-Group, Chlorite-Group)

2009-01-02 Amethyst

Prase

Inclusions

Crystal Habits

Growth Forms

New specimen (Namibia)

New specimen (Russia)

New specimen (Chlorite)

Corrections, new specimen (Pseudocubic Habit)

Additions to text, several new specimens (Artichoke, Perimorph, Pseudomorph, Pseudomorph, Pseudomorph)

2008-12-31 Amethyst

Aventurine

Flint

Occurrence

Smoky Quartz

Corrections, new specimen (Specific Properties)

New specimen (Norway)

New specimen (Germany)

New specimen (Authigenic Quartz)

New specimen (Germany)

2008-11-09 Occurrence

Additions to text, new specimen, new image (Veins and Pockets in Limestones and Dolomites)
Images sorted and cleaned up

2008-11-05 Growth Forms

Occurrence

New specimens (Phantom Quartz, Scepter Quartz)

New sections, new specimens (Veins and Pockets in Limestones and Dolomites,
Skarn Zones)

2008-10-27 Inclusions

New specimen (Chlorite, Hematite)

2008-10-26 Physical Properties

Additions to text (Mechanical Properties)

2008-10-23 Occurrence

Additions to text (Vein Quartz, Pegmatites and Pegmatite Pockets)

2008-10-21 Flint and Chert

Corrections and additions to text

2008-10-19 Agate

Additions to text

2008-10-18 Agate

Prasiolite

Additions to text

Additions to text

2008-10-14 Pink Quartz

Rose Quartz

Corrections and additions to text

Corrections and additions to text

2008-10-13 Growth Forms

New specimen (Artichoke Quartz)
Image replaced by better one (Artichoke Quartz)
Additions to text.

2008-10-08 Chalcedony

New specimen (Brazil)

2008-10-06 Inclusions

Quartz as a Rock-Forming Mineral

New specimen (Hematite)

New specimens (Diatomaceous Earth, Diatomite)

2008-10-03 Citrine

Prasiolite

Additions to text.

Additions to text.

2008-09-24 Agate

New specimen (Silicified Wood)
2008-09-22 Crystals - Macroscopic Structure

The Silica Group

Types of Quartz

Agate

Amethyst

Additions and corrections to text.

Additions to text.

Additions to text.

Additions to text.

Additions and corrections to text.

2008-08-21 Crystals - Macroscopic Structure

Additions and corrections to text.

2008-08-19 Rose Quartz

Pink Quartz

Additions to text.

Small additions to text.

2008-08-11 Types of Quartz

Additions to text (Cryptocrystalline Quartz), new figure.
2008-08-08 Formation and Growth

I found some bad errors in the section on Cryptocrystalline Quartz. The section has been taken out temporarily, because it needs to be rewritten.
2008-08-07 Twinning

Crystal Habits

The Silica Group

Types of Quartz

Small additions to text (Dauphiné twins).

Small additions to text.

Additions to text (opal, moganite).

Additions to text (Cryptocrystalline Quartz), new figure.

2008-07-30 Rose Quartz

Chemical Properties

The Silica Group

Small additions to text.

Small additions to text.

Small additions to text (melanophlogite).

2008-07-26 Agate

Additions to text, replaced some images by betrer versions, new specimen (Australia, Germany).
2008-07-22 Occurrence

Quartz as a Rock-Forming Mineral

Agate

New specimen (Authigenic Quartz)

New specimen (Sedimentary Rocks)

Additions to text, new images, new specimen (Germany).

2008-07-13 Quartz as a Rock-Forming Mineral

Corrections to text, new figure (Non-Quartz Environments)
2008-07-01 Agate

Additions and corrections to text
2008-06-16 Macroscopic Structure

Agate

Additions and corrections to text

Information on onyx and sardonyx has been subsumed under Agate

2008-06-14 Quartz as a Rock-Forming Mineral

Additions and corrections, the section on chert, radiolarites, diatomites, and novaculites has been moved here from the chapter Flint

2008-06-09 Appendix - Ternary Diagrams

Appendix - The QAPF Diagram

Quartz as a Rock-Forming Mineral

New appendix with introduction to ternary diagrams.

New appendix for the QAPF diagram.

Section on quartz as a rock-forming mineral was extended and moved from Occurrence to its own page.

2008-06-01 Twinning

New specimen (Japan Law Twins)

2008-05-26 Agate

Occurrence

New specimen (Coral Agate)

New image and additions to text (Diatomite)

2008-05-23 Pink Quartz

The Silica Group

Flint and Chert

Additions and corrections to text.

New specimen and text (Lechatelierite)

New images and additions to text (Alibates Flint Quarries)

2008-04-05 All pages Sorry for not working on the pages for so long, but right now I'm very busy with other things. Until I find more time again, there will be only minor corrections in the text.
2008-01-30 Growth Forms New specimen (Artichoke and Candle Quartz)
2008-01-29

All pages
 

Occurrence
 

Moved the "Last modified:" timestamp from the bottom of the pages to the top.

Additions to Text, Corrections (Pegmatites and Pegmatite Pockets)

2008-01-27

Inclusions

Occurrence
 

New specimen (Rutile)

Additions to Text, Corrections
New specimen (Igneous Rocks, Sedimentary Rocks, Metamorphic Rocks, Vein Quartz, Non-Quartz Environments)

2008-01-23 Occurrence

Inclusions

Chalcedony

New section and specimen (Non-Quartz Environments)

New specimen (Chlorite)

New specimen (India)

2008-01-21 Occurrence

Twinning

Gwindel

Synonyms

Rock Crystal

New specimen (Pegmatite Pockets)

New specimen (Japan Law Twins)

New specimen (Gwindel)

Added Greek translations (thanks to Anastasios Tsinidis)

Corrected the location data of two specimen that were thought to be from Arkansas and Nepal, but turned out to be both from India.

2008-01-20 Gwindel

Section about gwindel on Growth Forms was moved to its own page. The Growth Forms page has grown too large (more than 100KByte).
Additional figures and text, corrections.

2008-01-06 Smoky Quartz

Growth Forms,
Marcoscopic Structure

New specimen (Smoky Quartz)

New specimen (Skeleton Quartz, Skeleton Quartz)

2008-01-03 Growth Forms New specimen (Growth Inhibition, Corroded Quartz)
2008-01-02 Occurrence

Occurrence

Inclusions

Growth Forms

Additions to text (Ore Veins and Gangue Quartz)

New specimen (Geodes in Volcanic Rocks)

New specimen (Hematite)

New specimen (Candle Quartz)

2007-12-30 Occurrence

The Silica Group

Additions, New Specimen (Ore Veins and Gangue Quartz)

New Sections, new specimen (Cristobalite, Melanophlogite, Tridymite)

2007-11-28 The Silica Group New Specimen (Opal)
2007-11-26 Growth Forms

Crystal Forms

Amethyst

The Silica Group

New Specimen (Phantom Quartz)

Image replaced by better one (s-face)

New Specimen (Madagascar)

New Specimen (Opal, Opal)

2007-11-20 Occurrence

Inclusions

New Specimen (Pegmatite Pockets)

New Specimen (Pocket Clay and Sand)

2007-11-19 Growth Forms New Specimen (Gwindel)

2007-11-17 Twinning New figures (Dauphiné twins, Brazil twins)

2007-11-15 The Silica Group Additions to text, new figure

2007-11-13 Macroscopic Structure Additions to text, new specimen (Lamellar Structure)

2007-11-12 Silica Sinter Additions to text, moved section on myrickite from Chalcedony to Silica Sinter

2007-11-04 Growth Forms New Specimen (Gwindel)

New Specimen (Phantom Quartz)

New Image (Faden Quartz)

2007-11-02 Growth Forms New Specimen (Gwindel)

2007-11-01 Growth Forms

Crystal Forms

Additions to text (Scepter Quartz)

New Image (Steep Rhombohedra),
Image replaced by better one (Steep Rhombohedra)

2007-10-29 Amethyst

Growth Forms

The Silica Group

Twinning

Macroscopic Structure

Additions to text (Mexico)

New Specimen (Faden Quartz)

Many additions to text, new figures

Corrections to text

New chapter about quartz crystal's macroscopic structure, new images

2007-10-13 The Silica Group
 

Crystal Forms

Ametrine

All pages

Additions to text (Low Quartz, High Quartz),
corrections and additions in tables

New section (Basal Pinacoid)

Corrections

Corrections in CSS Stylesheets

2007-10-06 The Silica Group

All pages

All pages

Reorganization of tables

Minor corrections and additions to text.

CSS Stylesheets refurbished for all pages, links for navigating within individual pages got transferred into a vertical navigation bar.

Until I find a satisfactory solution, the look of the website now depends on the type of browser you use. The users of browsers that are not standard compliant (Internet Explorer family) will not see a navigation bar to the right side. In general, in a standard compliant browser like Firefox, the pages will look more slick. I'm tired of trying to subdue the erratic behavior of a browser that has intentionally been programmed to break standards.

Nevertheless, the full page content is still accessible to users of Microsoft browsers.

2007-09-19 Rock Crystal

Occurrence

New Specimen (Switzerland)

New images (Alpine-Type Fissures)

2007-09-02 Growth Forms

New Specimen (Skeleton Quartz)

2007-09-01 Growth Forms

Rock Crystal

Additions and Corrections (Gwindel)

New Specimen (Switzerland)

2007-08-31 Growth Forms

New Specimen (Scepter Quartz)

2007-08-29 Growth Forms

Inclusions

New Specimen (Skeleton Quartz)

New Specimen (Chlorite)

2007-08-28 Crystal Forms

Crystal Habits

New Specimen (Trapezohedron - x)

New Specimen (Binntal Habit)

2007-08-27 Growth Forms

New Specimen (Inhibition)

2007-08-13 Inclusions

New Specimen (Anatase)

2007-08-11 Rock Crystal

Crystal Forms

New Specimen (U.S.A.)

New Specimen (Trigonal Bypyramid)

2007-08-07 Amethyst

Inclusions

Additions and Corrections (Specific Properties)

New Specimen (Chlorite)

2007-08-06 Citrine

Image replaced by better one (Russia)

2007-08-04 Inclusions

Growth Forms

Image replaced by better one (Rutile)

Images replaced by better ones (Artichoke Quartz, Skeleton Quartz, Needle Quartz)

2007-08-01 Handedness

Removed entire chapter. Handedness is such an essential property of quartz that it cannot be presented separately without a lot of redundancy in text and figures.

2007-07-30 Growth Forms

Inclusions

Smoky Quartz

New Specimens (Phantom, Artichoke)

New Specimen (Chlorite)

New Specimen (Norway)

2007-07-29 Amethyst

Smoky Quartz

Occurrence

New Specimen (Namibia)

New Specimen (Namibia)

New Image, Several New Specimen (Pegmatites, Miaroles)

2007-07-15 Citrine

Image replaced by better one (Russia)

2007-07-14 Crystal Forms

Growth Forms

Occurrence

The Silica Group

Inclusions

New section and new specimen (Other Forms)

New specimen (Scepter Quartz)

Additions to text, new specimen (Pegmatite Pockets)

New section and new specimen (Opal)

New specimen (Brookite)

2007-06-24 Growth Forms

New specimen (Needle Quartz)

2007-06-22 Amethyst

Growth Forms

Prase

New specimen (Austria, Greece)

New specimen (Skeleton Quartz)

New specimen (Greece)

2007-06-19 Smoky Quartz

Inclusions

Inclusions

Occurrence

New specimen (Malawi)

New specimen (Hematite)

Image replaced by better one (Hematite)

New specimen (Ore Veins)

2007-06-18 Growth Forms
 

Amethyst

Jasper

New specimen (Perimorph),
image replaced by better one (Cactus Quartz)

Image replaced by better one (South Africa)

Image replaced by better one (Heliotrope)

2007-06-16 Carnelian and Sard

Jasper

Pages for Carnelian and Sard merged

Heliotrope subsumed under Jasper

2007-06-12 Growth Forms

Occurrence

Prase

New specimen (Growth Inhibition)

New specimen (Vein Quartz)

Images replaced by better ones (Italy)

2007-06-11 Amethyst

Occurrence

New specimen (Greece)

New specimen (Authigenic Quartz)

2007-06-09 Rock Crystal

Ferruginous Quartz

New specimen (Germany)

New specimen (Germany)

2007-05-28 Flint and Chert

Jasper

New specimen (U.S.A.)

New specimen (Poppy Jasper)

2007-05-25 Prase

New specimen (Greece)

2007-05-21 Index of Specimen and Locations

New page to list specimen by location

2007-05-19 Occurrence

New specimen (Pegmatite Pockets, Authigenic Quartz)

2007-05-17 Crystal Habits

New specimen (Cumberland Habit)

2007-05-15 Growth Forms

Citrine

Ferruginous Quartz

Smoky Quartz

New specimen (Corroded Quartz)

New specimen (Namibia)

New specimen (Namibia)

New specimen (Namibia)

2007-05-14 Ferruginous Quartz

Smoky Quartz

New specimen (Germany)

New specimen (Switzerland)

2007-05-13 Occurrence

New images (Pegmatite Pockets, Vein Quartz,
Alpine-type Fissures),
corrections, additions to text
2007-05-12 Types of Quartz

Chalcedony

Additions to text

Additions to text (Specific Properties)

2007-05-10 Twinning

New specimen (Dauphiné twins)

2007-05-09 Amethyst

New specimen (Namibia)

2007-05-07 Blue Quartz

Growth Forms

New specimen (Spain), small additions to text

New specimen (Artichoke Quartz)

2007-05-03 Amethyst

Occurrence

New image (Occurrence), Corrections

New images (Geodes,
Quartz as a Rock-Forming Mineral)

2007-04-19 Growth Forms

Occurrence

Smoky Quartz

New specimen (Phantom Quartz)

Additions to text (Alpine-type Fissures)

New specimen (Phantoms, same as
the one added to Growth Forms)

2007-04-18 Agate

Chalcedony

Ferruginous Quartz

Milky Quartz

Occurrence

New specimen (Brazil)

New specimen (Arizona, Italy)

Image replaced by better one (Germany)

New specimen (Portugal), added scales

New specimen (Pegmatite Pockets, Authigenic Quartz)

2007-04-15 Occurrence

New images (Alpine-type Clefts)

2007-04-09 Growth Forms

Occurrence

New specimen (Bent Quartz)

New specimen (Ore Veins)

2007-04-08 Flint and Chert

Occurrence

New images (Baltic Coast)

Additions to text, many new paragraphs,
several new images added

2007-03-22 Occurrence
 

Origin of Quartz

Started to rewrite chapter,
several new images added

New chapter, separated from "Occurrence"

2007-03-20 Smoky Quartz

Growth Forms

Twinning

Image replaced by better one (China)

Image replaced by better one (Gwindel)

New specimen (Switzerland)

2007-03-19 Amethyst

Citrine

New specimen (Germany)

New specimen (Russia)

2007-03-18 Chalcedony

Silica Sinter

Corrections, moved parts out to Silica Sinter

New page, several new specimen (California)

2007-03-17 Agate

Rock Crystal

New specimen (Mexico), corrections

Corrections

2007-03-16 Agate New specimen (Morocco)
2007-03-15 Agate

Crystal Forms

New specimen (Utah)

Corrections

2007-03-14 Chalcedony

Inclusions

New specimen (Italy)

New section (Tourmaline), new specimen

2007-03-13 Crystal Forms

Rock Crystal

New specimen, text added (x-faces)

New specimen (Arkansas)

2007-03-12 Ferruginous Quartz New specimen (Spain)
Several images replaced by better ones
2007-03-11 Inclusions

Prase

New specimen (Chlorite), corrections

New specimen (Greece)

2007-03-10 Ferruginous Quartz

Flint

Several new specimen (Spain)

New specimen (Denmark), corrections

2007-03-09 Milky Quartz New specimen (Germany)
2007-03-08 All Pages Adaptations for Internet Exploder 7
This malware is still not standard compliant >:-(
2007-03-02 Formation and Growth

Growth Forms

Many corrections and additions to the text

Several new specimen (Faden Quartz, Candle Quartz)

2007-03-01 Agate

Types of Quartz

New specimen (Germany)

Many corrections and additions to the text

2007-02-26 Chalcedony

"Diamonds"

New specimen (California)

New specimen (Stolberg Diamonds)

2007-02-25 Growth Forms

Prasiolite

New specimen (Phantom Quartz)

New specimen (Brazil), text added

2007-02-24 Citrine New specimen (Congo)
2007-02-23 Agate

Blue Quartz

Crystal Forms

Growth Forms

Smoky Quartz

New specimen (Namibia)

Several new specimen (Brazil), text added

New specimen (Muzo Habit)

New specimen (Faden Quartz)

New specimen (Namibia)

2007-02-22 Crystal Habits

Growth Forms

New specimen (Muzo Habit)

New specimen (Faden Quartz)

2007-02-20 Crystal Habits

Twinning

New section, several new specimen (Muzo Habit)

New specimen (Brazil Twins)

2007-02-19 Blue Quartz New specimen (Brazil), text added, corrections
2007-02-18 Growth Forms New specimen (Phantom Quartz)


 

Status of Documents and To-Do List

Note: "Complete" does not mean that there will be no additions or changes to that page. "Complete" means the page has an internally consistent structure. All pages are subject to change.

Page Status
Introduction Complete
Mineralogical Data of Quartz Consistent
Minor Additions needed
Types of Quartz Construction Site
Needs a major overhaul
Formation and Growth Incomplete
Usable, but needs to take into account many things that have yet to be explained on Types of Quartz
Occurrence Construction Site
Just started. The paragraph on alpine-type clefts will be turned into a chapter of its own in the future.
Origin of Quartz Construction Site
The sections on quartz petrology and differentiation need to be written. This page is far from complete.
The Silica Group Construction Site
Very incomplete.
Images and unit cell data of various silica polymorphs need to be added.
Chemical Properties Complete
Additions expected in future
Physical Properties Almost complete
Usable, but gaps at section on piezoelectricity.
Behavior of quartz in polarization microscope will be added in the future
Structure Part on Molecular Structure almost complete
Molecular models of twin domain borders missing
Probably will be split up into a Molecular Structure and a Crystal Structure part that will cover things like lamellar and macromosaic crystal structures.
Quartz Crystals - Introduction Complete
Quartz Crystals - Basic Terms Complete, but will be rewritten
Quartz Crystals - Forms Almost complete and usable
Needs a few more images and some additions to the text
Quartz Crystals - Habits Usable, but incomplete
Example images missing
Quartz Crystals - Twinning Usable, but incomplete
Schematic figures needed
Images missing
Quartz Crystals - Macroscopic Structure Construction site
Quartz Crystals - Data and Rendering Complete
Inclusions Construction Site
Development is essentially stalled because other things are more important.
Gwindel Usable
Needs more references
"Diamonds" Complete
Some images have to be replaced by better ones
Ouachita Mountains, Arkansas Construction Site
New
Herkimer Usable
Image annotation and scales incomplete. Text on crystal formation incomplete.
Overview of Quartz Varieties Complete
Might be rewritten
Amethyst Complete
Ametrine Usable
Explanation on occurrence missing
Aventurine Usable
Explanation on occurrence missing
Blue Quartz Complete
Citrine Complete
Ferruginous Quartz Complete
More specimen will be added in time
Tiger's, Cat's, Hawk's Eyes Usable, but inconsistent
Milky Quartz Usable, incomplete
Text on occurrence incomplete, images missing
Pink Quartz Complete
Prase Complete
Prasiolite Complete
Rock Crystal Complete
Several images have to be replaced
A more thorough coverage of the historic role of rock crystal would be nice
Rose Quartz Complete
Smoky Quartz Complete
Several images have to be replaced
Agate Construction Site
An introduction to different agate types is badly needed
Specimen missing
Annotations and scales missing
Carnelian and Sard Incomplete
Chalcedony Incomplete
Chrysoprase Complete
Flint and Chert Labeled "Complete", but needs a more thorough discussion on chert and flint genesis and occurrence.
Jasper Incomplete
Needs a more thorough discussion of its structural properties, genesis, and occurrence.
Needs more images
Plasma Incomplete
Will be subsumed under either Jasper or Chalcedony - yes, I know this is a contradiction. But there simply is no consistent classification scheme for quartz varieties.
Silica Sinter Construction Site
Has been added on March, 18th. Terminology needs to be checked.
Growth Forms Almost complete
Images of certain growth forms missing.
Synonyms Ever Growing



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