anhydrite

[an-hahy-drahyt]

an·hy·drite

[an-hahy-drahyt]
noun
a mineral, anhydrous calcium sulfate, CaSO4, usually occurring in whitish or slightly colored masses.

Origin:
1825–35; anhydr- + -ite1
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Anhydrite is always a great word to know.
So is lollapalooza. Does it mean:
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
Collins
World English Dictionary
anhydrite (ænˈhaɪdraɪt)
 
n
a colourless or greyish-white mineral, found in sedimentary rocks. It is used in the manufacture of cement, fertilizers, and chemicals. Composition: anhydrous calcium sulphate. Formula: CaSO4. Crystal structure: orthorhombic
 
[C19: from anhydr(ous) + -ite1]

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