Definify.com
Webster 1913 Edition
Sanidine
San′i-dine
,Noun.
[Gr. [GREEK]. [GREEK], a board. So called in allusion to the tabular crystals.]
(Min.)
A variety of orthoclase feldspar common in certain eruptive rocks, as trachyte; – called also
glassy feldspar
. Definition 2024
sanidine
sanidine
English
Noun
sanidine (countable and uncountable, plural sanidines)
- (mineralogy) A variety of orthoclase feldspar found as tabular crystals embedded in volcanic rocks. It sometimes reflects a blue sheen along crystal planes. This phenomenon is called adularescence, and sanidine with this property is called moonstone.
