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A white or greenish aluminum silicate mineral (resembles talc)
Answer for the clue "A white or greenish aluminum silicate mineral (resembles talc) ", 12 letters:
pyrophyllite
Word definitions for pyrophyllite in dictionaries
Wiktionary
Word definitions in Wiktionary
n. (context mineral English) A soft, pale aluminosilicate mineral, somewhat resembling talc.
WordNet
Word definitions in WordNet
n. a white or greenish aluminum silicate mineral (resembles talc)
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Pyrophyllite \Py*roph"yl*lite\, n. [Pyro- + Gr. ? leaf.] (Min.) A mineral, usually of a white or greenish color and pearly luster, consisting chiefly of the hydrous silicate of alumina.
Wikipedia
Word definitions in Wikipedia
Pyrophyllite is a phyllosilicate mineral composed of aluminium silicate hydroxide : AlSiO(OH). It occurs in two more or less distinct varieties, namely, as crystalline folia and as compact masses; distinct crystals are not known. The folia have a pronounced ...
Usage examples of pyrophyllite.
This pyrophyllite is a quite soft secondary mineral with a count of only 3 on the Mohs scale and was formed by sedimentation about 2.
They are found in pyrophyllite, which is mined near the little town of Ottosdal in the Western Transvaal.