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allophane
[ al-uh-feyn ]
noun
- a clay mineral, an amorphous hydrous silicate of aluminum, occurring in blue, green, or yellow, resinous to earthy masses.
allophane
/ ˈæəˌڱɪ /
noun
- a variously coloured amorphous mineral consisting of hydrated aluminium silicate and occurring in cracks in some sedimentary rocks
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51Թ History and Origins
Origin of allophane1
1835–45; < Greek DZḗs, equivalent to allo- allo- + phan- (stem of íԱٳ to appear) + -ŧ adj. suffix
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51Թ History and Origins
Origin of allophane1
C19: from Greek DZŧ appearing differently, from allo- + phainesthai to appear
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Example Sentences
Examples have not been reviewed.
Allophane, a hydrous aluminium silicate, with the composition Al2SiO5 + 5H2O, forming crusts in the cavities of various rocks and commonly of a delicate blue colour.
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