Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Orthoclase" Definition
noun
A variety of feldspar, essentially potassium aluminum silicate, KAlSi3O8, characterized by a monoclinic crystalline structure and found in igneous or granitic rock. Also called potash feldspar.
Source: American Heritage Dictionary
A monoclinic mineral of the feldspar group consisting of a silicate of potassium and aluminum.
Source: Merriam-Webster
A common rock-forming mineral occurring typically as white or pink crystals. It is a potassium-rich alkali feldspar and is used in ceramics and glass-making.
Source: Oxford Dictionary
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