1) Beautiful stone 2) Cut mineral 3) Decorative stone 4) Gemstone 5) Gemstone mineral 6) Jewel 7) Jewel mineral 8) Mineral jewel 9) Mineral gemstone 10) Polished mineral 11) Polished jewel 12) Precious gemstone 13) Prized stone 14) Precious stone 15) Prized mineral 16) Precious gem 17) Precious jewel
Found on
https://www.crosswordclues.com/clue/sillimanite
1) Fibrolite
Found on
https://www.crosswordclues.com/clue/sillimanite
Sillimanite is an alumino-silicate mineral with the chemical formula Al2SiO5. Sillimanite is named after the American chemist Benjamin Silliman (1779–1864). It was first described in 1824 for an occurrence in Chester, Middlesex County, Connecticut, USA. ==Occurrence== Sillimanite is one of three alumino-silicate polymorphs, the other two being a...
Found on
http://en.wikipedia.org/wiki/Sillimanite
• (n.) Same as Fibrolite.
Found on
http://thinkexist.com/dictionary/meaning/sillimanite/
A silicate of aluminium, Al2 SiO5, common in aluminous rocks of high metamorphic grade.
Found on
http://www.australian-shares.com/glossary-of-terms.php.html
brown, pale green, or white glassy silicate mineral that often occurs in long, slender, needlelike crystals frequently found in fibrous aggregates. ... [2 related articles]
Found on
http://www.britannica.com/eb/a-z/s/95
Sil'li·man·ite noun [ After Benjamin
Siliman , an American meneralogist.]
(Min.) Same as
Fibrolite .
Found on
http://www.encyclo.co.uk/webster/S/103
Sillimanite (fibrolite or bucholzite) is a fibrous silicate, somewhat rare mineral found as a constituent of gneiss and schist in metamorphic rocks, and often occurs with corundum. It has the formulae Al2SiO5 and a relative hardness of 7. Sillimanite was first confirmed as a distinct species of mineral in 1824 and was named in honour of Benjamin Si...
Found on
http://www.probertencyclopaedia.com/browse/HS.HTM
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