Guess what..., I need ID help again |
Colorado Prospector - Gem and mineral prospecting and mining forums > Prospecting, Mineral Collecting and Treasure Hunting Forums > Gem and Mineral Specimen Finds or ProcessesGuess what..., I need ID help again |
 Sep 11 2014, 12:10 PM
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 Rock Bar!  Group: Members Posts: 730 Joined: 6-July 14 From: Grant, CO Member No.: 117,890  |
I'm 90% sure this is my first topaz... am I wrong?
I know these kind of blend into the flashlight itself, couldn't find my normal light that I use... still in camping crap..
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Sep 12 2014, 04:59 PM
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#2
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 Rock Bar! Group: Members Posts: 898 Joined: 9-January 14 From: Denver, CO Member No.: 116,265 |
I have had a real tough time with scratch tests in the feild when looking for Topaz. They are very close to the same hardness (Quartz 7, Topaz 8) and it is often very difficult to get a conclusive test especially if you don't have an eye loupe . I can be hard to get a scratch at all. The specific gravity test is more conclusive because Topaz is significantly more dense and heavy.
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NewRockHounder Guess what... Sep 11 2014, 12:10 PM
MikeS Looks like Quartz, but hard to tell. If the back i... Sep 11 2014, 07:59 PM NewRockHounder Whats the gravity test? - other than the obvious.. Sep 11 2014, 08:13 PM
MikeS QUOTE (NewRockHounder @ Sep 11 2014, 09:1... Sep 11 2014, 08:42 PM NewRockHounder The backside - hard to capture, it's transpare... Sep 11 2014, 08:25 PM MikeS I don't see any cleavage on the fractures. Loo... Sep 11 2014, 08:44 PM NewRockHounder I don't have a digital scale, or any scale for... Sep 11 2014, 09:02 PM NewRockHounder I wanted to thank you Mike, for that post. I will ... Sep 11 2014, 09:07 PM MikeS Your very welcome sir. Sep 11 2014, 10:54 PM fenixsmom Its so SHINY!!!!! Scratch test... Sep 12 2014, 04:43 AM NewRockHounder Nothing to test with... I'm ill prepared for s... Sep 12 2014, 03:28 PM MikeS I tried the quick test created by John Betts and i... Sep 12 2014, 08:40 PM |
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