Any Idea what this it?, I am lost on this one |
Colorado Prospector - Gem and mineral prospecting and mining forums > Prospecting, Mineral Collecting and Treasure Hunting Forums > Gem and Mineral Specimen Finds or Processes  |
Any Idea what this it?, I am lost on this one |
 Aug 12 2013, 10:43 PM
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#16
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Shovel Buster!  Group: Members Posts: 91 Joined: 30-July 13 From: Elbert, CO Member No.: 91,383  |
Hijacking but I think I found some gold. It is in a buttery looking rock. I will post picks tomorrow but just got home. Need to dry off.
-------------------- --Chris
01101100 01100101 01110100 01110011 00100000 01100111 01101111 00100000 01101101 01101001 01101110 01101001 01101110 01100111 00100001 00100001 |
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Aug 13 2013, 09:21 PM
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#17
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 Master Mucker! Group: Members Posts: 1,301 Joined: 17-February 12 From: Central CO Member No.: 41,357 |
Can you really highjack your own thread?
 Looking forward to those pics!
-------------------- Caveman
Aulus Livius Maximus World Traveler, 7 Continent Walker LEVEL 3 LIFETIME MEMBER Referral Code: SE2104 |
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Oct 30 2013, 09:37 PM
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#18
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Diggin' In! Group: Members Posts: 6 Joined: 8-October 13 Member No.: 101,284 |
Hey Lostnewb, the rock you started this thread with also may contain spears of a mineral called Riebeckite. The picture looks a whole lot like some of the pegmatites I've seen in the Saint Peters Dome area near Colorado Springs. Both Hornblende and Riebeckite are in the same mineral group, so it doesn't really matter which it is. I agree with Crusty, it's a nice looking sample either way.
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Jan 11 2014, 04:49 PM
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#19
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Diggin' In! Group: Members Posts: 7 Joined: 11-January 14 Member No.: 116,289 |
Looks like Tourmaline to me, some of the black spots that are not elongated (like the one in the middle toward the bottom) seem to have a hexagonal crystal structure. The best way for you to test it at home, would be a scratch test. Tourmaline should not be scratched easily by a sharp piece of quartz. If a piece of quartz does scratch it fairly easily, then it could be another mineral. But the hexagonal crystal shapes suggest that it is NOT "Riebeckite" or "Hornblende", both of those minerals are a bit softer than quartz as well.
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Oct 7 2014, 05:17 PM
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#20
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 Shovel Buster! Group: Members Posts: 71 Joined: 2-July 13 From: Colorado Springs Member No.: 86,914 |
Riebeckite. Scroll down and enlarge to compare to an identical looking piece from Mt. Rosa -
http://www.mindat.org/forum.php?read,84,257724,257761 |
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