Chrysotile

Chrysotile is named after Greek "chrysos" - gold and "tilos" - fiber, alluding to its colour and habit.

Chrysotile is a soft fibrous type of Serpentine with gray to green colour, sometimes with yellow to brownish hue.
General Information
A variety or type of:Serpentine
Chemical Formula
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
Gemdat.org, Management Team (2012)
Chrysotile Treatments
Commonly dyed in various colors and impregnated (acetone and hot point test) - Blue Chart Gem Identification, Herve Nicolas Lazzarelli, 2010, p 6
Physical Properties of Chrysotile
Mohs Hardness2.5 to 4.5
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
Specific Gravity2.51 to 2.63
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Optical Properties of Chrysotile
Refractive Index1.530 to 1.575
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
Optical CharacterBiaxial
Gemdat.org, Management Team (2012)
Birefringence0.001
Gemdat.org, Management Team (2012)
ChatoyancyYes
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Colour
Colour (General)Mottled, veined
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
LustreSilky
Gemdat.org, Management Team (2012)
Crystallography of Chrysotile
Crystal SystemMonoclinic
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
HabitFibrous aggregates
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Further Information
Mineral information:Chrysotile information at mindat.org
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