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pyrophyllite
[ pahy-ruh-fil-ahyt, pahy-rof-uh-lahyt ]
noun
- Mineralogy. a phyllosilicate, AlSi 2 O 5 (OH), usually having a white or greenish color, and occurring in either foliated or compact masses, the latter variety being used like soapstone.
pyrophyllite
/ ˌpaɪrəʊˈfɪlaɪt /
noun
- a white, silvery, or green micaceous mineral that consists of hydrated aluminium silicate in monoclinic crystalline form and occurs in metamorphic rocks. Formula: Al 2 Si 4 O 10 (OH) 2
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Word History and Origins
Origin of pyrophyllite1
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Example Sentences
Pyrophyllite (hydrated aluminum silicate) resembles talc in some of its properties and is used in much the same way.
From Project Gutenberg
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