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Geological Theory Challenges
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5
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234
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May 3, 2025
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Amazing hackamamite Find California
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36
|
1232
|
July 28, 2025
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Is this a garnet or ruby?
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12
|
574
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July 27, 2025
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Synthetic corundum
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22
|
432
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July 25, 2025
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Taafeite value
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11
|
429
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July 24, 2025
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Star sapphire
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0
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85
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July 20, 2025
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Striae Straight
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21
|
379
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July 18, 2025
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Origin and treatment of a star sapphire
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0
|
77
|
July 18, 2025
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Wholesale Seller's
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0
|
126
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March 10, 2025
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Synthetic corundum being a tanzanite.?
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1
|
221
|
July 16, 2025
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Emerald Luxury
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0
|
128
|
July 15, 2025
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Paraiba tourmaline
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7
|
219
|
July 13, 2025
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Terminology
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8
|
180
|
July 11, 2025
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ID gemstone from Pendant
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30
|
441
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July 10, 2025
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Looking for gem sellers & gem buyers
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14
|
517
|
July 9, 2025
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Emerald best colour
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1
|
109
|
July 8, 2025
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Ruby Natural vs Lab
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18
|
345
|
July 8, 2025
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How much do you think this opal is worth
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6
|
997
|
May 16, 2023
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Winza Ruby heated or unheated?
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6
|
393
|
July 2, 2025
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Siberian Amethyst
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2
|
372
|
July 2, 2025
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ID Stones please
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20
|
639
|
June 30, 2025
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Need help identifying lg yellow-green stone
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7
|
881
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June 24, 2025
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Help to ID these inclusions in almandine garnet
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3
|
234
|
June 24, 2025
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Facet grade gem rough
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5
|
291
|
June 23, 2025
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Emerald gemstone
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7
|
280
|
June 23, 2025
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Having trouble identifying these unique specimens
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8
|
434
|
June 23, 2025
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Help identify
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22
|
287
|
June 22, 2025
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Are Semi precious gems worthless
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8
|
288
|
June 22, 2025
|
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Identification help
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7
|
867
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June 20, 2025
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Is this an opal? Help needed!
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11
|
10229
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June 19, 2025
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