1) Beautiful stone 2) Cut mineral 3) Decorative stone 4) Gemstone mineral 5) Gemstone 6) Jewel 7) Jewel mineral 8) Magnesium mineral 9) Mineral jewel 10) Mineral gemstone 11) Monoclinic mineral 12) Polished mineral 13) Polished jewel 14) Prized stone 15) Prized mineral 16) Precious jewel 17) Precious gem
Found on
https://www.crosswordclues.com/clue/staurolite
Staurolite is a red brown to black, mostly opaque, nesosilicate mineral with a white streak. It crystallizes in the monoclinic crystal system, has a Mohs hardness of 7 to 7.5 and the chemical formula: Fe2+2Al9O6(SiO4)4(O,OH)2. Magnesium, zinc and manganese substitute in the iron site and trivalent iron can substitute for aluminium. ==Properties== ...
Found on
http://en.wikipedia.org/wiki/Staurolite
• (n.) A mineral of a brown to black color occurring in prismatic crystals, often twinned so as to form groups resembling a cross. It is a silicate of aluminia and iron, and is generally found imbedded in mica schist. Called also granatite, and grenatite.
Found on
http://thinkexist.com/dictionary/meaning/staurolite/
silicate mineral [(Fe,Mg,Zn)3-4Al18Si8O48H2-4] produced by regional metamorphism in rocks such as mica schists, slates, and gneisses, where it is ...
Found on
http://www.britannica.com/eb/a-z/s/156
Stau'ro·lite noun [ Greek ... a cross +
-lite .]
(Min.) A mineral of a brown to black color occurring in prismatic crystals, often twinned so as to form groups resembling a cross. It is a silicate of aluminia and iron, and is generally found imbedded in mica schist. Called also
granatit...Found on
http://www.encyclo.co.uk/webster/S/188
Staurolite is an brown, vitreous accessory mineral found in crystalline schists, slates, and sometimes gneisses and often associated with garnet, kyanite, and tourmaline. It has the formulae (Fe,Mg,Zn)2Al9Si4O23(OH) and a relative hardness of 8.
Found on
http://www.probertencyclopaedia.com/browse/HS.HTM
staurolite, staurolitic Literally, 'cross-stone'; a reddish-brown or black mineral of iron and magnesium that occurs as prismatic crystals in metamorphic rocks, often in a cross shape. It is used as a gemstone that often forms twin crystals in the shape of a cross. The term metamorphism refers to a change in the physical structure of rock that resu...
Found on
http://www.wordinfo.info/words/index/info/view_unit/2027/
a mineral, basic iron aluminum silicate, FeAlO(SiO)(OH), occurring in brown to black prismatic crystals, which are often twinned in the form of a cross.
Found on
https://www.infoplease.com/dictionary/staurolite
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