image28

Fair Copying Allowed for Educational Use

Rocks and Minerals seen through the Petrological Microscope

Normal Light

Polarised Light

(Scale: Each image approx. 0.75 mm across)

Microcline Feldspar and Sphene. 7306 feet below Swift Current, Saskatchewan.
Brown Biotite Mica below, Quartz upper right, Microcline feldspar upper left. Crystal of Sphene is top centre.

Microcline Feldspar, Sphene, Biotite Mica and Quartz.