Classification
GFA - Mineralogy - general
29
GFAD - Mineral determination
6
FCA - Crystallography
5
GFAC - Specific minerals
4
GFAA - General mineralogy
3
FCBH - Crystal structure of specific substances
2
GHMA - Clay, shale
2
UCS - Environmental chemistry
2
FCB - Crystal chemistry
1
FCBE - Chemical bond in crystals
1
GHA - Petrology - general
1
GHHM - Diagenesis
1