Augite, (Ca,Mg,Fe)2Si2O6
Enstatite, Mg2Si2O6
Fluorapatite, Ca5(PO4)3F
Tridymite, SiO2
Light olive green augite at center with and enstatite crystal extending down from the lower right corner. There are several elongated colorless fluorapatite crystals visible. Numerous pseudohexagonal tridymite crystals are scatter across the specimen.
Harter Mountain, Linn County, Oregon, USA
FOV = 1.1 mm
#9400
NFS
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