1 Physical Properties
1.1 Tenacity
1.3 Solubility
Not Available
Not Available
1.4 Durability
Not Available
Not Available
1.6 Specific Gravity
3.20-3.252.74-2.76
1
7.18
1.7 Fracture
Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven
1.8 Cleavage
Good/distinct on [210]
{010} Perfect, {001} Distinct
1.9 Mohs Hardness
1.12 Chemical Composition
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)