1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.3 Solubility
Not Available
Not Available
1.7 Durability
Not Available
Not Available
1.9 Specific Gravity
1.97-2.223.04-3.17
1
7.18
1.10 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, Gemstones of the world (2001) More from other references
1.11 Cleavage
Not Available
{001} Indistinct, {???} Indistinct
1.12 Mohs Hardness
1.15 Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references