Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.13-3.263.15-3.259
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
None
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
-99995.5-6
2
10
👆🏻
Chemical Composition
Ca 5(F,Cl)(PO 4) 3Arthur Thomas , Gemstones (2009)
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)