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
3.25-3.282.74-2.76
1
7.18
1.5 Fracture
Uneven
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven
1.6 Cleavage
{100} Distinct, {001} Poor, {110} Poor
{010} Perfect, {001} Distinct
1.7 Mohs Hardness
1.8 Chemical Composition
Ca2Fe++Al2BO3Si4O12(OH)
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)