Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.60-3.022.9-3.5
1
7.18
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Fracture
Uneven
Conchoidal
Cleavage
{001} Perfect
{110} Perfect, {???} Distinct, {???} Distinct
Mohs Hardness
2-2.55.5-6
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 5Al(Si 3Al)O 10(OH) 8Anthony et al , Handbook of mineralogy (2001)
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)