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| <span style="color:#cf7606; font-size:200%;"><b>Welcome to</b>&#160;</span><span style="color:#005288; font-size:200%;"><b>The Gemology Project</b></span><br><br>
  
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'''The Gemology Project is a non-profit gemstone and gem science wiki-style database for anyone interested in gemstones and gemology (gemmology).  Every month we highlight a gemstone and a piece of gemstone identification equipment to help us all understand more about the wonderful world of colored stones and diamonds. The Project begins with a general tutorial as an [[Introduction_to_Gemology|Introduction to Gemology]].'''
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! Latest Additions
 
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* [[Sphene]]
 
* [[Kyanite]]
 
* [[Pearl]]
 
* [[Causes of color]]
 
* [[Poudretteite]]
 
* [[Goldstone]]
 
* [[Datolite]]
 
* [[Color]]
 
* [[Maw-sit-sit]]
 
* [[Twinning]]
 
* [[Crystallography]]
 
* [[Pleochroism]]
 
* [[Habit]]
 
* [[Form]]
 
* [[Symmetry]]
 
* [[Hardness]]
 
* [[Double Refraction]]
 
* [[Beryl]]
 
* [[Color Filters]]
 
* [[Specific Gravity]]
 
* [[Hydrostatic Balance]]
 
* [[Heavy Liquids]]
 
* [[Dichroscope]]
 
* [[Microscope]]
 
* [[Polariscope]]
 
* [[Spectroscope]]
 
* [[10x Loupe]]
 
* [[Refractometer]]
 
* [[Frequently Asked Questions]]
 
* [[Isomorphous replacement]]
 
* [[Luminescence]]
 
* [[Table_Of_Contents|more]]
 
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'''We invite every gemologist, gemstone dealer or gem enthusiast to share their practical and theoretical gemological knowledge and help this central gemology repository grow.'''<br />
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'''You can simply click on the "submission" links at the top and bottom of each page and your information will be included as soon as possible.'''
| <span style="color:#cf7606; font-size:200%;"><b>Welcome to</b>&#160;</span><span style="color:#005288; font-size:200%;"><b>The Gemology Project</b></span><br><br>
 
  
'''The Gemology Project is a joined effort to bundle as much gemological information as possible and to distribute that  knowledge, without cost, to anyone interested in what keeps us off the streets.'''
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'''You can navigate through the site with the aid of our [[Table_Of_Contents|Contents page]]'''
  
  
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! style="background-color: #1d347d; color:white;" |Latest Contributions
 
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! style="background-color: #77B9D3;" |'''In the spotlights: [[Aquamarine]]'''
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| style="padding:5px;"| [[Image:ConcaveAqua.JPG|left|150px]]
 
Aquamarine is a pastel greenish-blue variety of the mineral beryl and owes its color to the presence of iron impurities. Its name is derived from the Latin words for water (aqua) and sea (marine). Crystals form in large hexagonal prisms.<br />In ancient times, it was believed that sailors wearing aquamarine pendants would be protected from the perils of the sea.<br />The stone symbolized happiness and eternal youth. It was viewed in Christian symbolism to bring moderation and control of passions to its owner .. [[aquamarine|more]]
 
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<span style="color:#fe0101; font-size:180%;"><b>[[Faceting Designs|Faceting Designs]]</b>
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[[Image:GPFDC.jpg|center|link=Faceting Designs|500px]]
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<span style="color:#005288; font-size:180%;"><b>[[Images:Tourmaline |The Bruce Fry Tourmaline Collection]]</b> <br /><br />
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[[Image:Tourm43.jpg |link=Images:Tourmaline|110px|Tourmaline Collection]]
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[[Image:Tourm88.jpg |link=Images:Tourmaline|110px|Tourmaline Collection]]
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[[Image:Tourm101.jpg |link=Images:Tourmaline|110px|Tourmaline Collection]]
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[[Image:Tourm87.jpg |link=Images:Tourmaline|110px|Tourmaline Collection]]
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! style="background-color:#F5E31C;"| '''Book of the month'''
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! style="background-color: #1d347d; color:white;" |'''In Memoriam: '''Alain van Acker''''''
 
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<center>'''Gems''' by Michael O'Donoghue</center><br />
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<html><div class="plainlinks" style="float:left;margin-right:5px;"><a href="http://gemologyproject.com/wiki/index.php?title=Image:Alain2.jpg"><img src="https://gemologyproject.com/wiki/images/9/94/Alain2.jpg" width="150"></a></div></html>
[[Image:Book gems-6th.jpg|left|150px]]
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Alain van Acker was a great mind, an excellent teacher and a true friend. His accomplishments are immortal. This site is a solid memory of him and his work. The information provided on this site is an unique opportunity for you to learn more about gemstones. <br /> <br /><br /> <br />
Already in its 6th edition, this book is considered by many as the '''Gemology Bible'''.
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On Alain's behalf: ''"Enjoy the ride!"''
Although ''Gems'' is sold at a steap price, this book is a must have for every serious gemologist.<br />
 
In this revised edition by the renowed gemologist Michael O'Donoghue almost every gemological topic, from geological formation to synthesation, is covered indepth.<br />
 
This comprohensive work should be the first gem book in your ever expanding collection.
 
 
 
[http://www.amazon.com/dp/0750658568/ref=nosim/?tag=thegemologypr-20 Support The Gemology Project and buy it safe from Amazon]
 
 
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! style="background-color: #1d347d; color:white;" |'''Book Tips: '''Library Essentials''''''
 
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! style="background-color: lightgray;"| '''Featured article: [[Polariscope]]
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The polariscope may be one of the most underestimated tools in gemology. Most gemologists use it to quickly determine if the stone at hand is isotropic or anisotropic or, at best, to determine the optic character of gemstones. With some small additions, one can determine both optic character and the optic sign of a gemstone. It is also the preferred tool -- next to the microscope -- for separating synthetic amethyst from its natural counterparts (although with recent synthetics that may prove difficult).
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In addition, the polariscope may be very useful for distinguishing solid inclusions from negative inclusions as well as for spotting polysynthetic twinning .. [[polariscope|more]]
 
  
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|[[image: Understanding jewellery.jpg|155px]]||[[image: Exotic_Gems.jpg|155px]]||[[image:Gems_Crystals.jpg|155px]]|| [[image:Gemstones_of_the_World.jpg|155px]]|| [[image: Gems.jpg|155px]]
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|[https://www.amazon.com/gp/product/1851494308?ie=UTF8&tag=gemsandwhywelove&linkCode=as2&camp=1789&creative=9325&creativeASIN=1851494308 Understanding Jewellery<br /> by David Bennett] ||[https://www.amazon.com/gp/product/0929975421?ie=UTF8&tag=gemsandwhywelove&linkCode=as2&camp=1789&creative=9325&creativeASIN=0929975421 Exotic Gems <br/> by Renee Newman]||[http://www.amazon.com/gp/product/0671687042 Gems & Crystals <br />Anna S. Sofianides]||[http://www.amazon.com/gp/product/0806994614 Gemstones <br /> by Walter Schmann] ||[https://www.amazon.com/gp/product/0750616741  Gems (5th Edition) <br /> by R. Webster]
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Please also read the [[The_Gemology_Project:General_disclaimer | disclaimer]], [[ Frequently_Asked_Questions| FAQ]] and [[Help:Contents | help]] pages.

Latest revision as of 18:52, 24 November 2018

Welcome to The Gemology Project

The Gemology Project is a non-profit gemstone and gem science wiki-style database for anyone interested in gemstones and gemology (gemmology). Every month we highlight a gemstone and a piece of gemstone identification equipment to help us all understand more about the wonderful world of colored stones and diamonds. The Project begins with a general tutorial as an Introduction to Gemology.

We invite every gemologist, gemstone dealer or gem enthusiast to share their practical and theoretical gemological knowledge and help this central gemology repository grow.
You can simply click on the "submission" links at the top and bottom of each page and your information will be included as soon as possible.

You can navigate through the site with the aid of our Contents page


Latest Contributions

Faceting Designs

GPFDC.jpg


The Bruce Fry Tourmaline Collection

Tourmaline Collection Tourmaline Collection Tourmaline Collection Tourmaline Collection


'In Memoriam: Alain van Acker'

Alain van Acker was a great mind, an excellent teacher and a true friend. His accomplishments are immortal. This site is a solid memory of him and his work. The information provided on this site is an unique opportunity for you to learn more about gemstones.



On Alain's behalf: "Enjoy the ride!"


'Book Tips: Library Essentials'
Understanding jewellery.jpg Exotic Gems.jpg Gems Crystals.jpg Gemstones of the World.jpg Gems.jpg
Understanding Jewellery
by David Bennett
Exotic Gems
by Renee Newman
Gems & Crystals
Anna S. Sofianides
Gemstones
by Walter Schmann
Gems (5th Edition)
by R. Webster



Please also read the disclaimer, FAQ and help pages.