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Identity HelpClover creek Idaho mineral ID help!
10th Aug 2018 04:58 UTCLevi Forshee
10th Aug 2018 05:05 UTCLevi Forshee
Longwave uv, fluorescence stays for visible with lights of for around 10 seconds.
Close up of the spiny bead covered formation I'm interested in knowing more about.
One of the larger crystal pieces, very opaque. Some of the clean breaks on some of the crystals reveal beautiful clarity, while some of the more heavily weathered crystals have what looks like cuts in them
10th Aug 2018 12:31 UTCReiner Mielke Expert
10th Aug 2018 14:18 UTCPaul Brandes 🌟 Manager
Without some basic testing as Reiner suggests, it's going to be difficult to provide any kind of a guess as to what you have. Also, where did you find this; mountains, desert, etc.?
10th Aug 2018 23:07 UTCLevi Forshee
I lack some of the basic testing stuff, like acid, so it's a little tough to answer. I know I'm not giving you much to go off of. I found it in a desert area, in a hillside of basalt. The only strange thing that caught my eye from the area were the crystal lined pores in the rock. I'll attach a couple more photos.
As for the mineral itself:
It lacks any luster wet or dry, and will not absorb water AT ALL. I found it soaking wet top to bottom on the counter top an hour after I ran it under water. I would say that the beads and shell are at least as hard as my smoky quartz, but it appears the beads are hollow to some degree.
10th Aug 2018 23:11 UTCAlfredo Petrov Manager
10th Aug 2018 23:11 UTCDoug Schonewald
11th Aug 2018 00:35 UTCWayne Corwin
You'll have to look close for bubbles and they will be slow with vinegar or juice, but will show up better if you powder a small piece, then test.
11th Aug 2018 14:53 UTCV. Stingl
14th Aug 2018 02:31 UTCLevi Forshee
So I believe I have sulfur crystals from a volcanic fumarole. In the acid, the rock matrix remains while the crystals effervesced. The crystals are vibrant yellow with the exterior removed by the acid. I did continue to let some crystals soak in the acid, and they dissolved completely!
I still can't seem to find any information on the matrix. Just a tease from a Smithsonian handbook I picked up from B&N. Copyright laws and what not, you'd have to find the book for yourself. The matrix in their specimen from Cadiz was spot on with what I found. It can't be that uncommon, right?
14th Aug 2018 02:59 UTCKevin Conroy Manager
14th Aug 2018 04:42 UTCAlfredo Petrov Manager
14th Aug 2018 05:40 UTCMatt Neuzil Expert
14th Aug 2018 19:00 UTCScott Rider
Also, with your testing, I agree you have calcite/aragonite. I personally love calcite, its one of my favorite minerals, partly because I can find some here in Colorado, but mostly because it has so many crystal shape/forms making it quite a unique mineral!!!
16th Aug 2018 00:57 UTCLevi Forshee
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Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 20, 2024 01:08:27