1 Physical Properties
1.1 Tenacity
Very brittle
Not Available
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.30-3.40Not Available
1
7.18
2.5 Fracture
Conchoidal, Brittle, Conchoidal
(e.g. graphite).
2.6 Cleavage
{010} perfect, {110} distinct, {100} in traces
{???} Imperfect, {???} Imperfect
2.7 Mohs Hardness
2.11 Chemical Composition
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Not Available