#calcite
orange calcite | source
So I found a cool rock and I’m trying to figure out what it is.
It’s small, has a bit of a waxy luster, appears brown in the shade but is opaque and appears amber-ish in the sunlight.
My best guesses are a form of quartz or chalcedony but mineral identification isn’t really my area of expertise.
I was at a museum the other day and was able to do some comparing, and I think I’m pretty sure it’s calcite.
Also, was able to get myself a nice amethyst from the gift shop:
Calcite
Christiane Mine, Adorf, Diemelsee, Kassel, Hesse, Germany
orange calcite | source
Mixed fluorescent minerals from the Beltana Mine (Puttapa Zinc Mine), Leigh Creek, North Flinders Ranges, Flinders Ranges, South Australia, Australia. Pictured under short wave ultraviolet and white light.
Terlingua Calcite from the Little 38 Mine in Terlingua, Texas. All of the fluorescent minerals in this rock are calcite. Shown under long wave ultraviolet, mid-wave ultraviolet, short wave ultraviolet and white light. This one weighs over 8 pounds.