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Hexagonite

General Information
A variety or type of:Tremolite
Chemical Formula
Ca
 
2
Mg
 
5
Si
 
8
O
 
22
(OH)
 
2
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
Physical Properties of Hexagonite
Mohs Hardness5 to 6
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Specific Gravity2.98 to 3.03
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Cleavage QualityPerfect
Michael O’Donoghue, Gems, Sixth Edition (2006)
Optical Properties of Hexagonite
Refractive Index1.599 to 1.637
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Optical CharacterBiaxial/-
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Birefringence0.023 to 0.028
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Colour
Colour (General)Lilac-pink
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
TransparencyTransparent,Translucent
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
More from other references
LustreVitreous
Arthur Thomas, Gemstones (2009)
Fluorescence & other light emissions
Fluorescence (General)Common orangy, pinkish, reddish (also dull gray-green)
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Crystallography of Hexagonite
Crystal SystemMonoclinic
Gemdat.org, Management Team (2012)
Spectrographic Data
Calculated Spectra:
Click spectra for more information
Hexagonite - Locality: Unknown
Further Information
Mineral information:Hexagonite information at mindat.org
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