mysqlClass Error 9 in file extras/autoload.inc.php, line 72:
Error #8192: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead
anhydrite-stone

anhydrite-stone

SRI Petrography ID: 66

Names

[de] Anhydrit
[en] anhydrite-stone

Description

Anhydrite is a compact, transparent, white, grey or blueish mineral of anhydrous calcium sulfate (CaSO4). Anhydrite differs from gypsum by having no crystal-water and being harder (2.5). It can easily be scratched by fingernails.
Anhydrite is sometimes a rock-forming mineral, building up the rock type “anhydrite”. Anhydrite usually occurs as layers in gypsum deposits in association with limestone, dolomite, and salt beds.

Color

colorless, white, gray or blue coloured

Grain Size

fine grained

Texture

massive, dense, banded

Minerals

anhydrite, salt minerals, gypsum, sometimes clay minerals

Occurences

worldwide, first described in the salt deposit of Hall in Tirol (Austria)

Classification

Class

SEDIMENTARY ROCKS

Broader Terms

non-carbonate salts

Narrower Terms

France-anhydrite-stone