Sylvite
Image: <a href="//commons.wikimedia.org/wiki/User:LBM1948" title="User:LBM1948">LBM1948</a> (CC BY-SA 4.0)
Mineral NameSylvite
Chemical FormulaKCl
Mohs Hardness2
Crystal Systemcubic
Lustervitreous
Streak Colorwhite
Cleavageperfect cubic (3 directions at 90 degrees)
Fractureconchoidal to uneven
Specific Gravity1.99
Colorswhite, colorless, gray, yellow, reddish-brown
Transparencytransparent to translucent
Type LocalityCardona, Barcelona, Catalonia, Spain
Mineral GroupHalides
Usesfertilizer, chemical industry, collector
Associated Mineralshalite, carnallite, kieserite, anhydrite
Raritycommon
Description
The image displays pale yellowish-white, pointed crystalline formations, possibly secondary growths like stalactites, with some darker banding. The surfaces appear granular and sparkling.
Geological Context
Sylvite forms in marine evaporite deposits, often in arid basins where seawater evaporates, leading to the precipitation of various salts. It is a key component of potash deposits, which are economically important for fertilizer production.
