Berborite-2T

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System:	Trigonal	Colour:	colorless

A polytype of Berborite

Classification of Berborite-2T
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Physical Properties of Berborite-2T
Diaphaneity (Transparency):	Transparent
Colour:	colorless
Comment:	Pedial faces usual shiny and smooth while other faces may be dull and frosty
Cleavage:	Perfect {001}
Density (measured):	2.06 g/cm³
Crystallography of Berborite-2T
Crystal System:	Trigonal
Class (H-M):	3m - Ditrigonal Pyramidal
Space Group:	P3c1
Cell Parameters:	a = 4.431Å, c = 10.663Å
Ratio:	a:c = 1 : 2.406
Unit Cell Volume:	V 181.31 Å³ (Calculated from Unit Cell)
Other Information
Health Warning:	No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Berborite-2T
Reference List: - +	Giuseppetti et al. (1990): Berborite polytypes. Neues Jahrbuch für Mineralogie-Abhandlungen 162 (1): 101-116
Internet Links for Berborite-2T
Search Engines:	Look for Berborite-2T on Google Look for Berborite-2T images on Google
Mineral Dealers:	Search for Berborite-2T from all mineral dealers at minfind.com Edwards Minerals - Fine Specimens Search for - Berborite-2T - on e-Rocks Mineral Sales & Auctions Fabre Minerals - search for Berborite-2T specimens Fine Minerals from Weinrich Minerals, Inc. webminerals Rare and Unusual minerals at Mineralogical Research Company Buy from David K Joyce minerals Search for minerals at Heliodor Top quality minerals from Kristalle of California Pricedownminerals.com - Reverse Auctions and Shop By minerals from YourMineralCollection
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