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)
"Sillimanite" Definition
noun
A brown, gray, white, or pale green mineral, Al2SiO5, used as a gemstone and for ornamental carvings. Also called fibrolite.
Source: American Heritage Dictionary
A brown, grayish, or pale green mineral that consists of an aluminum silicate in orthorhombic crystals often occurring in fibrous or columnar forms.
Source: Merriam-Webster
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