-
Show us YOUR Work thread - 500,000 VIEWS and Counting! Last Post/Page - Please Add Your Latest Tile Projects
(Here is the old read-only thread, it has 125,000 tile pictures)
gypsum
Search the forum,
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, blackboard/sidewalk chalk, and drywall. A massive fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia, Ancient Rome, the Byzantine Empire, and the Nottingham alabasters of Medieval England. 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.
View More On Wikipedia.org
The Mohs scale of mineral hardness defines gypsum as hardness value 2 based on scratch hardness comparison.
View More On Wikipedia.org
Posting a tiling question to the forum? Post in Tilers' Talk if you are unsure which forum to post in. We'll move it if there's a more suitable forum.
