- a mineral, intermediate in the plagioclase feldspar group, having a play of colors and usually found as crystals in igneous rocks.
Origin of andesine
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Examples from the Web for andesine
These intermediate members are the lime-soda felspars known as oligoclase, andesine, labradorite and bytownite.
- a feldspar mineral of the plagioclase series consisting of an aluminium silicate of sodium and calcium. Formula: NaAlSi 3 O 8 .CaAl 2 Si 2 O 8
C19: from the Andes (where it is found) + -ine 1
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
- A white, gray, green or yellow mineral of the plagioclase feldspar group. Andesine occurs in igneous rocks such as andesite and diorite. Chemical formula: (Na,Ca)(Si,Al)4O8.
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