It is with great sadness I'd like to announce Dr. Hanneman passed away on December 12, 2020. His legacy will live on forever!
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 Post subject: Clear Stones Challenge
PostPosted: Thu Apr 24, 2008 11:15 pm 
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Hey Barbra! I really like the challenge you posted here! As Beth, my wife, said above, I have been collecting clear gems for her to test when she has her G.G. I was joking earlier to her that you had it easy with fairly common clear gems. I've been slowly putting together a collection with odd clear stones, like euclase, enstatite, tourmaline, etc. What other unusual clear stones can you think of that I need to add to Beth's torment? :lol:

Dev

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 Post subject: continuing list of clear gemstones
PostPosted: Mon May 19, 2008 11:46 pm 
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Well, I can't stand it any longer. Here is a list of more clear stones:
petalite,
danburite,
fluorite,
beryl (goshenite),
tourmaline (achroite),
apatite,
garnet (leuco, grossular),
chrysoberyl,
bytownite,
crystal opal,
kunzite,
phenakite,
hambergite,
pollucite

What have I missed?

Maybe we could put together a complete set of each possible colored stone and offer a Master of the Colorless / Blue / Red / Green, etc Color certificate for those who can correctly identify every gem in a color set. Those who do them all get a Master of the Rainbow certification!

Probably only GIA has a complete set like that. Oh well, it was fun to think about.

Dev

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 Post subject:
PostPosted: Tue May 20, 2008 4:25 am 
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Quote:
What have I missed?


heh... off the top of my head ;) :

villiaumite
lithium fluoride (artificial)
glass
Gaylussite (I see a marketing opportunity :))
Creedite
Calcite
Analcime
Inderite
Kurnakovite
Whewellite
Cancrinite
Dolomite
Leucite
Magnesite
Orthoclase
Albite
Witherite (translucent at best)
Aragonite
Nephelin
Apophyllite
Scapolite
Beryllonite
Pyrophyllite
Labradorite
Vivianite (colours upon being exposed to sunlight)
Augilite
Anorthite
Colemanite
Herderite
Phosphophyllite
Amblygonite
Hemimorphite
Prehnite
Coelestine
Datolite
Danburite
Barite
Jeremejevite
Eosphorite
Spodumene
Kornerupine
Lawsonit
Diopside
Rhodizite
Willemite
Diaspor
Kyanite (Disthene)
Chambersite
Gahnite (synthetic)
Anglesite
Sheelite
Cassiterite (synthetic)
Bismuth germanate (artificial)
Lithium tantalate (artificial)
Linobate (artificial)
Wulfenite
Sphalerite (synthetic)
Wurtzite (synthetic)
Anatase
Greenockite (synthetic)


Beth is in trouble now!!


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 Post subject:
PostPosted: Tue May 20, 2008 1:29 pm 
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Hey! Cut that out!

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 Post subject:
PostPosted: Tue May 20, 2008 1:32 pm 
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:D


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 Post subject:
PostPosted: Fri Dec 04, 2009 6:48 pm 
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there's one thing worse than clear stones: black ones

imagine a set with onyx, obsidian, black corundum, black spinels, jet, black glass, black zircon, black garnets, carbonado, black tourmaline, black opal, bixbyite, augite, aegyrine, hornblend, neptunite, etc...if no SG kit is vailable that's a nightmare

btw, neptunite is my very favourite black stone

Image
specimens of neptunite with benitoite are splendid

Image

I even love the name Neptunite


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PostPosted: Fri Dec 04, 2009 9:29 pm 
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LOL, black opal or black potch? :wink:

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PostPosted: Fri Dec 04, 2009 9:51 pm 
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I'll take that plate on the bottom. How much, $50? ;)


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PostPosted: Sun Dec 20, 2009 12:27 am 
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Did one already mentioned Taafeite in colorless stones ?

Very interesting challenge Barbra!


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PostPosted: Fri Jan 29, 2010 1:08 pm 
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Ran the GT Pro Separator with Colorless and Transparent selected. After a couple of redundant hits were removed got over 130 gems. Now why didn't I make it so you can copy that list and post it here?

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