
1) An iron silicate 2) Beautiful stone 3) Calcium mineral 4) Cut mineral 5) Decorative stone 6) Gemstone 7) Gemstone mineral 8) Iron mineral 9) Jewel mineral 10) Jewel 11) Mineral gemstone 12) Mineral jewel 13) Monoclinic mineral 14) Polished mineral 15) Polished jewel 16) Precious stone 17) Prized stone
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https://www.crosswordclues.com/clue/epidote

1) Pistacite
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https://www.crosswordclues.com/clue/epidote

Epidote is a calcium aluminium iron sorosilicate mineral. Well-developed crystals of epidote, Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH), crystallizing in the monoclinic system, are of frequent occurrence: they are commonly prismatic in habit, the direction of elongation being perpendicular to the single plane of symmetry. The faces are often deeply striat...
Found on
http://en.wikipedia.org/wiki/Epidote

• (n.) A mineral, commonly of a yellowish green (pistachio) color, occurring granular, massive, columnar, and in monoclinic crystals. It is a silicate of alumina, lime, and oxide of iron, or manganese.
Found on
http://thinkexist.com/dictionary/meaning/epidote/

any of a group of colorless to green or yellow-green silicate minerals with the general chemical formula A2B3(SiO4)(Si2O7)O(OH), in which A is ... [2 related articles]
Found on
http://www.britannica.com/eb/a-z/e/36

<chemical> A mineral, commonly of a yellowish green (pistachio) colour, occurring granular, massive, columnar, and in monoclinic crystals. It is a silicate of alumina, lime, and oxide of iron, or manganese. ... The Epidote group includes ordinary epidote, zoisite or lime epidote, piedmontite or manganese epidote, allanite or serium epidote. Ã...
Found on
http://www.encyclo.co.uk/local/20973
Ep'i·dote noun [ Greek ... to give besides; ... over + ... to give: confer French
épidote . So named from the
enlargement of the base of the primary, in some of the secondary forms.]
(Min.) A mineral, commonly of a yellowish green (pistachio) color, occurring granular, massive, col...
Found on
http://www.encyclo.co.uk/webster/E/54

Epidote is a common mineral found in regional and metamorphic rocks of mafic composition and as a product of alteration of other minerals. It is sometimes used as a gemstone. It has the formulae Ca2(Al,Fe)3Si3O12(OH) and a relative hardness of 7.
Found on
http://www.probertencyclopaedia.com/browse/HE.HTM
(Calcium Aluminum Iron Silicate Hydroxide) Epidote is a structurally complex mineral having both single silicate tetrahedrons, SiO 4 , and double silicate tetrahedrons, Si 2 O 7 . The formula of epidote could be expressed in a such a way so as to reflect this organization; Ca 2 (Al, Fe)Al 2 O(SiO 4 )(Si 2 O 7 )(OH). The two alum...
Found on
https://www.encyclo.co.uk/local/23719

a mineral, calcium aluminum iron silicate, Ca(Al, Fe)SiO(OH), occurring in green prismatic crystals.
Found on
https://www.infoplease.com/dictionary/epidote
No exact match found.