Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.33-4.422.56-2.60
1
7.18
👆🏻
Fracture
-
Uneven, ConchoidalWalter Schumann
Cleavage
Perfect
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Mohs Hardness
4.56-6.5
2
10
👆🏻
Chemical Composition
Ca(Nd,Ce,La) 2(CO 3) 3F 2Ulrich Henn and Claudio C.
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8