Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.33-4.423.05-3.21
1
7.18
👆🏻
Fracture
-
Uneven, Subconchoidal, Splintery
Cleavage
Perfect
Good on {110}, poor on {100}
Mohs Hardness
4.57.5
2
10
👆🏻
Chemical Composition
Ca(Nd,Ce,La) 2(CO 3) 3F 2Ulrich Henn and Claudio C.
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references