Stolzite Value, Price, and Jewelry Information


Stolzite
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0 [CC-BY-SA-3.0], via Wikimedia Commons

Stolzite is a rare mineral; much rarer than wulfenite and usually occurs in very minute crystals. However, the Australian crystals may be up to 1 inch...

Stolzite Value

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Information

DataValue
NameStolzite
Is a Variety ofScheelite
Crystallography Tetragonal; crystals tabular and thick, or dipyramidal. Crystal faces commonly striated.
Colors Brown, yellowish brown, fawn beige, tan, yellow red, red, greenish.
Luster Resinous to subadamantine.
Fracture Conchoidal to uneven
Hardness 2.5-3
Specific Gravity 7.9 - 8.34.
Birefringence 0.08.
Cleavage Indistinct
Stone SizesStolzite is a rare mineral (much rarer than wulfenite and usually occurs in very minute crystals. However, the Australian crystals may be up to 1 inch in size and tiny transparent areas have yielded very small cut stones of a bright orange color.
Luminescence None reported.
Spectral Not diagnostic.
FormulaPbWO4. Dimorphous with Raspite.
Pleochroism Not reported.

Optics: 0 I 2.27; e : 2.19.

Uniaxial (—).

Occurrence: A secondary mineral in the oxidation zone of tungsten-bearing ore deposits.

Broken Hill, New South Wales, Australia.

Brazil; England; Sardinia: Germany; Nigeria.

Utah; Arizona; Massachusetts; Pennsvlvania.

Name: After Dr. Stolz of Bohemia who first called attention to the mineral.