a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)
A mineral consisting of the hydrated calcium sulphate. When calcined, it forms plaster of Paris.
a mineral consisting of the hydrous sulphate of lime (calcium). When calcined, it forms plaster of Paris. Selenite is a transparent, crystalline variety; alabaster, a fine, white, massive variety
Origin: [L. gypsum, Gr. gy`psos; cf. Ar. jibs plaster, mortar, Per. jabsn lime.]
Gypsum is a very soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It can be used as a fertilizer, is the main constituent in many forms of plaster and is widely mined. A very fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia and the Nottingham alabasters of medieval England. It is the definition of a hardness of 2 on the Mohs scale of mineral hardness. It forms as an evaporite mineral and as a hydration product of anhydrite.
Chambers 20th Century Dictionary
jip′sum, n. a valuable mineral of a comparatively soft kind, burned in kilns, and afterwards ground to a fine powder, called plaster of Paris.—adjs. Gyp′seous, of or resembling gypsum; Gypsif′erous, producing or containing gypsum. [L.,—Gr. gypsos, chalk.]
Is a mineral.
Gypsum can occur in many forms e.g. in a flower-like form, typically opaque, with embedded sand grains called desert rose. It also forms some of the largest crystals found in nature, up to 12 metres (39 ft) long, in the form of selenite.
The numerical value of gypsum in Chaldean Numerology is: 7
The numerical value of gypsum in Pythagorean Numerology is: 2
Images & Illustrations of gypsum
Translations for gypsum
From our Multilingual Translation Dictionary
- guixCatalan, Valencian
- gipsNorwegian Nynorsk
- łeezh łigaaíNavajo, Navaho
Get even more translations for gypsum »
Find a translation for the gypsum definition in other languages:
Select another language: