1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.4 Solubility
Not Available
Not Available
1.7 Durability
Not Available
Not Available
1.10 Specific Gravity
3.76-3.772.35-2.60
1
7.18
1.16 Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Conchoidal, ConchoidalWalter Schumann, Conchoidal
1.17 Cleavage
{110} Perfect, {110} Perfect
Not Available
1.18 Mohs Hardness
1.19 Chemical Composition
(Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.
Not Available