|Mineral class||Sulphates : anhydrite - gypsum|
|Habitus||Crystals as orthorombic dipyramidals. Also as fibric aggregates and in cleavable masses.|
|Cleavage||Perfect, uneven to splintery fracture.|
|Color||White, grey, bluish to pinkish reddish or brownish.|
|Luster||Vitreous, pearly or greasy.|
|Occurance|| Commonly found as evaporites with dolomite, calcite,
gypsum, halite and sylvite. Rarely as a hydrothermal mineral.|
In Sweden in some weathered sulphide ores (mullmalmer) and some mines in Lappland.
|Notes||Transforms into gypsum.|
|Locations|| A rare mineral in Sweden.|
| To sulphate index.
|| Mineral group index.
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