It is aslo known as "chalk", "plaster" or "plaster of Paris"
Gypsum is a hydrated calcium sulfate: CaSO4.2H2O.
Gypsum
Alabaster
First of all, Gypsum is a mineral, and Rock Gypsum is a rock, don't get them confused. Second of all, no they aren't. Rock Gypsum is a sedimentary rock, and an alternate name for it is Alabaster.
Actually it is. Gypsum, a colloquial name for Calcium Sulfate, is used as a desiccant and coagulant in a number of foods.
gypsum
CaSO4 2H2O
No, they did not.
No, gypsum is not metallic.
Calcium Sulphate Dihydrate CaSO4, 2 H2O
The address of the Gypsum Public Library is: 743 Valley Road, Gypsum, 81637 9722
The address of the Gypsum Community Library is: 521 Maple St., Gypsum, 67448 0019