What's This? #38, Can you identify this? |
Colorado Prospector - Gem and mineral prospecting and mining forums > Prospecting, Mineral Collecting and Treasure Hunting Forums > Prospectors and Rockhounding Field WorkWhat's This? #38, Can you identify this? |
  Jul 28 2012, 07:42 AM
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 Master Mucker!  Group: Admin Posts: 7,206 Joined: 7-October 03 From: Colorado Member No.: 4  |
This "What's This" is a combination of two mineral. It can be found all over Colorado.
Do you know what it is and what the two mineral are making up the combination?
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and participation opens the door to opportunity. Discover your prospecting independence & success! ColoradoProspector.com Owner/Webmaster Core team member ♥  |
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Jul 28 2012, 08:46 AM
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#2
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 Moderator Group: Members Posts: 4,459 Joined: 25-August 09 From: way on up thar Member No.: 6,983 |
It looks like Unakite (Epidotite) to me.
 hmmmm
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Jul 28 2012, 08:50 AM
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#3
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Rock Bar! Group: Members Posts: 411 Joined: 20-February 07 From: Richland Mississippi Member No.: 994 |
Yup unakite. Thanks Swizz for the reminder. I was sitting here
 trying to remember.
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Jul 28 2012, 09:00 AM
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#4
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Moderator Group: Members Posts: 4,459 Joined: 25-August 09 From: way on up thar Member No.: 6,983 |
If it's Unakite... there are three minerals involved.
"Unakite is a type of granite. It is composed of salmon-pink feldspar (feldspars are an important group of rock-forming minerals which make up perhaps as much as 60% of the Earth's crust), green epidote, and quartz." -------------------- /l ,[____], l---L-OlllllllO- ()_) ()_)--o-)_) BLACK SANDS MATTER! Very Happy CP Lifetime Member CP CORE TEAM Referral Code CE213 |
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Jul 28 2012, 10:14 AM
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#5
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Master Mucker! Group: Admin Posts: 7,206 Joined: 7-October 03 From: Colorado Member No.: 4 |
Ha! You nailed me on that one Chris......good job! You are correct it is Unakite and it does consist of three minerals. I forgot the quartz..
 Here is a quote from Mindat ... QUOTE Unakite is an altered granite consisting primarily of pink Orthoclase Feldspar, clear Quartz and green Epidote. The lower right hand side piece that is all green consists of Epidote and quartz. This Epidote is more of a mass than a crystal. The smaller pink piece in the center right actually looks fuzzy green because it has the Epidote that is more in the crystal form. Have to look in a 20x loop at it to see the tiny crystal shapes (poorly formed). Can even see some translucent spots of the very tiny dark green crystals.  Top center one looks to me like Epidote and red Jasper. What do you think?
-------------------- Education is the key to the future,
and participation opens the door to opportunity. Discover your prospecting independence & success! ColoradoProspector.com Owner/Webmaster Core team member ♥ |
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