1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
slightly water soluble and in hot hydrochloric acid
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
Not Available3.00-3.25
1
7.18
1.11 Fracture
Conchoidal, Uneven
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
1.13 Cleavage
{1010} Imperfect, {0001} Imperfect
Octahedral, perfect on {111}, parting on {011}
1.15 Mohs Hardness
1.17 Chemical Composition