General Information:
Chemical Formula:Na(CaNa)Mg3ALFe+++[Si6Al2O22](OH)2
Composition:(Molecular Weight = 850.28 gm)Sodium 5.41 %
NaCalcium 4.71 %
CaMagnesium 8.58 %
MgAluminum 9.52 %
AlIron 6.57 %
FeSilicon 19.82 %
SiHydrogen 0.24 %
H Oxygen 45.16 %
O Empirical Formula: Na2CaMg3AlFe3+(Si6Al2O22)(OH)2
Environment:Nepheline-bearing igneous rocks.
IMA Status:Approved IMA 1978
Locality:Wali-tarama, Mariupol, Ukraine.
Name Origin:Named after the chemical composition and the locality.
Physical Properties: Cleavage:[110] Perfect
Color:green.
Hardness:5-6 - Between Apatite and Orthoclase
Luster:Vitreous (Glassy)
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