Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.9-3.5-9999
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
{110} Perfect, {???} Distinct, {???} Distinct
{???} Good, {???} Good, {???} Distinct
Mohs Hardness
5.5-6-9999
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
(Na,Ca)2BeSi2(O,OH)7