1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
ConchoidalGemdat.org, Uneven
1.6 Cleavage
Good to perfect_usually N/A
{111} Indistinct, {111} Indistinct, {111} Indistinct
1.7 Mohs Hardness
1.8 Chemical Composition
CuAl6(PO4)4(OH)8 • 4H2O
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)