Khanneshite
General Information:
Chemical Formula:(NaCa)3(Ba,Sr,Ce,Ca)3(CO3)5
IMA Status:Approved IMA 1982
Physical Properties:
Cleavage:[???] Indistinct
Color:light yellow.
Density:3.8 - 3.9, Average = 3.84
Diaphaniety:Transparent
Hardness:3-4 - Calcite-Fluorite
Luster:Vitreous (Glassy)
Streak:white
More details...
(Na,Ca)3(Ba,Sr,Ce,Ca)3(CO3)5