Gypsum
id:
gypsum-162-507440
title:
Gypsum
text:
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, drywall and blackboard or sidewalk chalk. Gypsum also crystallizes as translucent crystals of selenite. It forms as an evaporite mineral and as a hydration product of anhydrite. The Mohs scale of mineral hardness defines gypsum as hardness value 2 based on scratch hardness comparison. Fin
brand slug:
wiki
category slug:
encyclopedia
description:
Soft calcium sulfate mineral
original url:
https://en.wikipedia.org/wiki/Gypsum
date created:
2002-02-25T15:43:11Z
date modified:
2024-08-27T13:38:30Z
main entity:
{"identifier":"Q82658","url":"https://www.wikidata.org/entity/Q82658"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/b/bb/Gypse_Caresse.jpg","width":3497,"height":3139}
fields total:
13
integrity:
16