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Colorado Calcite
MikeS
post Jan 11 2016, 04:47 PM
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QUOTE (Mrs.CP @ Jan 11 2016, 01:59 PM) *
Fantastic finds you guys!! Looks like so much fun, I really enjoyed the vide MikeS. thumbsupsmileyanim.gif Do the specimens glow under a UV light?


We have not seen a distinct glow under the UV for the Calcite itself. Most of the Calcite has a layer under it in the rock that does glow yellow under the UV (most likely a Barite layer). Which gives me hope that one of us may find nice Barite crystal down there some time. There are supposed to be nice clear and lavender colored ones on the Calcite, although they are somewhat rare.


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James and Cyndi
post Jan 20 2016, 05:16 PM
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Here are a few more pics from the last trip down south. My camera doesn't do closeup shots well. My UVC blub burned out, but the UVB is pretty cool on a few pieces. The nodules themselves look pretty cool under the UV. Having difficulty getting a quality pic for yalls. The headless Giraffe from earlier is now called the Bear.

I believe these are little Hematite balls on a bed of Calcite. if you look close there is Calcite growing over them and a couple over grown.
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more butter

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and some sloppy 2nds from MikeS' bday pocket. the pocket being open to the elements for a few days oxidized it a little, but still beautiful.

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swizz
post Jan 20 2016, 07:10 PM
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awesome specimens! That second pic..... cube-shaped Calcite?


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James and Cyndi
post Jan 20 2016, 07:26 PM
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QUOTE (swizz @ Jan 20 2016, 06:10 PM) *
awesome specimens! That second pic..... cube-shaped Calcite?


Yes, that piece came out of the same pocket as the mandible from earlier. The biggest cube on there is about 1.5 cm. So cool how diverse Calcite colors and structures can be.


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MikeS
post Jan 31 2016, 11:37 AM
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It looks like it could be Hematite or Marcasite formations on your Calcite James. Both are iron minerals and get rusty looking on the surface.

Here are some pics of the Calcite I have found the last few weekends while hunting for Barite.
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James and Cyndi
post Jan 31 2016, 11:55 AM
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Neat little specimens guys. happy088.gif


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