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
1.5 Fracture
ConchoidalGemdat.org, Uneven
Uneven, Uneven, Gemstones of the world (2001) More from other references
1.6 Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
{001} Indistinct, {???} Indistinct
1.7 Mohs Hardness
1.8 Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references