1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.55-2.634.06-4.08
1
7.18
1.5 Fracture
Uneven, Uneven, Gems
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
1.6 Cleavage
{001} Perfect, {010} Good
{???} Perfect
1.7 Mohs Hardness
1.8 Chemical Composition
KAlSi 3O 8Arthur Thomas , Gemstones (2009)
Mn2+ Zn 2SiO 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references