Strontianite, Var. Emmonite

Pod Sosnou, Třinec, Moravia-Silesia Region, Czech Republic

Item-No.: MIN0271
Price: 55.00 EUR 

Synonyms:  Emmonsite, Stronthianite, Strontian, Strontian Spar
Classification:  carbonates
Chemical formula:  SrCO3
Crystal system:  Orthorhombic
Density (g/cm3):  3.74 - 3.78 measured, 3.722 calculated
Tenacity:  Brittle
Cleavage:  Very good, on {110} nearly perfect; on {021} poor; on {010} in traces
Fracture:  Irregular, uneven, sub-conchoidal
Hardness (Mohs):  3.5
Colour:  Colourless, white, gray, light yellow, green, brown
Lustre:  Vitreous, Resinous
Streak:  White
Fluorescence:  Fluorescent and phosphorescent in UV, bright yellowish white under shortwave, mediumwave and longwave ultraviolet radiation
Transparency:  Transparent, Translucent
Type locality:  Strontian, Highland, Scotland, UK
Application:  Chemical industry as a source for production of strontium compouds