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Stillwellite (Color-Changing!)
This is one of the better crystals collected in a remakrable pocket from a glacial region, in september of 2004. It features a 1.3 cm crystal in matrix. Interestingly, they COLOR CHANGE from red (as shown) in halogen or sunlight to YELLOW in fluorescent light. Superb color and luster for the species, as well as unusually attractive for such a normally earthy species. They are translucent and partly gemmy, if not transparent per se.
Unknown Owner
Product details
Species
SizeMiniature
Dimensions4.4 x 3.8 x 2.3 cm
Locality
Darai -Piez Massif, Alay Range of Tien-Shan' Mountains, Garm Region, Tajikistan
Added on10/23/2024
Comments
Known provenance
2024/08
Unknown Owner
Not disclosed—Species and Locality Wiki Pages
Collectors of Stillwellite
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