Aspidolite

0 views
Aspidolite
General
CategoryPhyllosilicate minerals
GroupMica group, trioctahedral mica group
FormulaNaMg3AlSi3O10(OH)2
IMA symbolAsp[1]
Crystal systemMonoclinic
Crystal class2/m
Space groupC2/m
Unit cella = 5.291(8), b = 9.16(2), c = 10.12(2) Å
Identification
FractureMicaceous
Optical propertiesBiaxial (-)
References[2]

Aspidolite is a mica group phyllosilicate mineral, the sodium analogue of the magnesium-rich mineral phlogopite. The ideal chemical formula for aspidolite is NaMg3AlSi3O10(OH)2.[2]

References

[edit]
External image
image icon Aspidolite (Kasuga, Japan)

This article is sourced from Wikipedia. Content is available under the Creative Commons Attribution-ShareAlike License.