Schultenite

Schultenite is named after August Benjamin de Schulten, Professor of Chemistry,
University of Helsinki, Finland, who synthesized the compound before its discovery in nature.

Schultenite forms colourless, pale yellow, white tabular, flattened, striated crystals with vitreous to adamantine lustre.
Photos of natural/un-cut material from mindat.org
Physical Properties of Schultenite
Mohs Hardness2.5
Anthony et al, Handbook of mineralogy (2001)
Specific Gravity5.943 to 6.07
Anthony et al, Handbook of mineralogy (2001)
TenacityBrittle
Anthony et al, Handbook of mineralogy (2001)
Cleavage QualityGood
Anthony et al, Handbook of mineralogy (2001)
Optical Properties of Schultenite
Refractive Index1.890 to 1.976
Anthony et al, Handbook of mineralogy (2001)
Optical CharacterBiaxial/+
Anthony et al, Handbook of mineralogy (2001)
Colour
Colour (General)Colourless to white.
Anthony et al, Handbook of mineralogy (2001)
TransparencyTransparent
Anthony et al, Handbook of mineralogy (2001)
LustreAdamantine,Vitreous
Anthony et al, Handbook of mineralogy (2001)
Fluorescence & other light emissions
Fluorescence (Long-Wave UV)May ?uoresce dull yellow.
Anthony et al, Handbook of mineralogy (2001)
Crystallography of Schultenite
Crystal SystemMonoclinic
Anthony et al, Handbook of mineralogy (2001)
HabitCrystals are flattened, striated, rarely to 17.5 cm.
Anthony et al, Handbook of mineralogy (2001)
Geological Environment
Where found:A rare secondary mineral in the oxidized zone of Pb–As-rich hydrothermal
deposits.
Anthony et al, Handbook of mineralogy (2001)
Further Information
Mineral information:Schultenite information at mindat.org
Significant Gem Localities
Namibia
 
  • Oshikoto Region
    • Tsumeb
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