1 Physical Properties
1.3 Tenacity
Not Available
Not Available
1.6 Solubility
Not Available
Not Available
1.9 Durability
Not Available
Not Available
1.11 Specific Gravity
2.52-2.603.13-3.26
1
7.18
1.5 Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.7 Cleavage
{0001} Imperfect, {1120} Imperfect
Not Available
1.9 Mohs Hardness
1.15 Chemical Composition
KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 5(F,Cl)(PO 4) 3Arthur Thomas , Gemstones (2009)