
1) Beautiful stone 2) Cut mineral 3) Decorative stone 4) Gemstone 5) Gemstone mineral 6) Jewel 7) Jewel mineral 8) Luminescent mineral 9) Magnesium mineral 10) Mineral jewel 11) Mineral gemstone 12) Polished jewel 13) Polished mineral 14) Precious gem 15) Prized stone 16) Prized mineral 17) Precious stone
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https://www.crosswordclues.com/clue/diopside

Diopside is a monoclinic pyroxene mineral with composition MgCaSi2O6. It forms complete solid solution series with hedenbergite (FeCaSi2O6) and augite, and partial solid solutions with orthopyroxene and pigeonite. It forms variably colored, but typically dull green crystals in the monoclinic prismatic class. It has two distinct prismatic cleavages...
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http://en.wikipedia.org/wiki/Diopside

• (n.) A crystallized variety of pyroxene, of a clear, grayish green color; mussite.
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http://thinkexist.com/dictionary/meaning/diopside/

common silicate mineral in the pyroxene family that occurs in metamorphosed siliceous limestones and dolomites and in skarns (contact-metamorphic ... [3 related articles]
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http://www.britannica.com/eb/a-z/d/52
Di·op'side noun [ Greek
di- =
di`s- twice + ... a sight, from the root of ... I shall see: confer French
diopside .]
(Min.) A crystallized variety of pyroxene, of a clear, grayish green color; mussite.
Found on
http://www.encyclo.co.uk/webster/D/69

Diopside is a mineral usually found as a contact metamorphic mineral in crystalline limestones. Transparent varieties have been cut and used as gemstones. It has the formulae CaMgSi2O6 and a relative hardness of 6.
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http://www.probertencyclopaedia.com/browse/HD.HTM

Calcium magnesium silicate
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http://www.translationdirectory.com/glossaries/glossary075.htm
(Calcium Magnesium Silicate) Diopside is an important rock forming mineral in several metamorphic and basic to ultra basic igneous rocks, also found in meteorites . Diopside is a part of an important solid solution series of the pyroxene group. The series includes the minerals hedenbergite , CaFeSi 2 O 6 , and augite , (C...
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https://www.encyclo.co.uk/local/23719

a monoclinic pyroxene mineral, calcium magnesium silicate, CaMg(SiO), occurring in various colors, usually in crystals.
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https://www.infoplease.com/dictionary/diopside
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