Tenacity
-
Brittle
Solubility
-
H₂SO₄
Durability
-
-
Specific Gravity
-99992.74-3.00
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
None
Distinct on {0001} imperfect on {11 2 0}
Mohs Hardness
3-45-5.5
2
10
👆🏻
Chemical Composition
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite
Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.