1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.40-2.423.28-3.44
1
7.18
1.5 Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Uneven, Splintery, Brittle
1.6 Cleavage
{010} Perfect, {001} Distinct
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
1.7 Mohs Hardness
1.8 Chemical Composition
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available