Harmotome Ba₂(Si₁₂Al₄)O₃₂·12H₂O
At the center of the image are 3 colorless harmotome crystals. The upper 2 forming at V with the third extend near vertically from the base of the V. To the right is a single harmotome twinned crystal. The other harmotomes are also twinned. The fibrous tan mineral is astrophyllite.
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 1.38 mm
#1513
NFS
#minerals