Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.08-2.163.15-3.259
1
7.18
👆🏻
Fracture
Irregular/uneven
-
Cleavage
distinct/good on {1011}
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
4.55.5-6
2
10
👆🏻
Chemical Composition
CaAl 2Si 4O 12 -6H 2OArthur Thomas , Gemstones (2009)
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)