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allophane

[al-uh-feyn] /ˈæl əˌfeɪn/
noun
1.
a clay mineral, an amorphous hydrous silicate of aluminum, occurring in blue, green, or yellow, resinous to earthy masses.
Origin
1835-1845
1835-45; < Greek allophanḗs, equivalent to allo- allo- + phan- (stem of phaínesthai to appear) + -ēs adj. suffix
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for allophane
  • allophane is a complex alumino-silicate and is considered to have short-range order or is poorly crystalline.
  • Oxidative changes of polyphenols as influenced by allophane.
British Dictionary definitions for allophane

allophane

/ˈæləˌfeɪn/
noun
1.
a variously coloured amorphous mineral consisting of hydrated aluminium silicate and occurring in cracks in some sedimentary rocks
Word Origin
C19: from Greek allophanēs appearing differently, from allo- + phainesthai to appear
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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