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出典:Wiktionary
From Warwick + -ite, from Warwick, Orange County, New York, USA.
warwickite (countable かつ uncountable, 複数形 warwickites)
出典:Wikipedia
出典:『Wikipedia』 (2011/01/24 09:18 UTC 版)
Warwickite is an iron magnesium titanium borate mineral with formula: (MgFe)3Ti(O, BO3)2 or Mg(Ti,Fe3+, Al)(BO3)O. It occurs as brown to black prismatic orthorhombic crystals which are vitreous and transparent. It has a Mohs hardness of 3 to 4 and a specific gravity of 3.36.
warwickite