Feldspars
Barth, Tom F. W.
Feldspars - New York Wiley interscience 1969
Silicates Mineralogy gems Physical properties of feldspars Tectosilicates
549.68 / K9
Feldspars - New York Wiley interscience 1969
Silicates Mineralogy gems Physical properties of feldspars Tectosilicates
549.68 / K9