
1) Amphibole 2) Luminescent mineral 3) Magnesium iron silicate 4) Magnesium mineral
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https://www.crosswordclues.com/clue/anthophyllite

Anthophyllite is an amphibole mineral: ☐Mg2Mg5Si8O22(OH)2, magnesium iron inosilicate hydroxide. Anthophyllite is polymorphic with cummingtonite. Some forms of anthophyllite are lamellar or fibrous and are classed as asbestos. The name is derived from the Latin word anthophyllum, meaning clove, an allusion to the most common color of the mineral...
Found on
http://en.wikipedia.org/wiki/Anthophyllite

• (n.) A mineral of the hornblende group, of a yellowish gray or clove brown color.
Found on
http://thinkexist.com/dictionary/meaning/anthophyllite/

an amphibole mineral, a magnesium and iron silicate that occurs in altered rocks, such as the crystalline schists of Kongsberg, Nor., southern ... [2 related articles]
Found on
http://www.britannica.com/eb/a-z/a/81
An·thoph'yl·lite noun [ New Latin
anthophyllum clove.] A mineral of the hornblende group, of a yellowish gray or clove brown color. --
An`tho*phyl*lit'ic adjective Found on
http://www.encyclo.co.uk/webster/A/92

Anthophyllite is a mineral occurring in crystalline schists rich in magnesium. It has the formulae (Mg,Fe) 7Si8O22(OH)2 and a relative hardness of 6.
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http://www.probertencyclopaedia.com/browse/HA.HTM

[
n] - a dark brown mineral of the amphibole group
Found on
http://www.webdictionary.co.uk/definition.php?query=anthophyllite
noun a dark brown mineral of the amphibole group; magnesium iron silicate
Found on
https://www.encyclo.co.uk/local/20974

a mineral, magnesium-iron silicate, (Mg,Fe)(SiO)(OH), occurring in schists in lamellar or fibrous clove-brown crystals.
Found on
https://www.infoplease.com/dictionary/anthophyllite
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