Here’s my attempt at photographing the metamorphic thin sections we are analyzing in petrology. All the pictures were taken on my iPhone and as such the resolution isn’t all that great, but you can still get a feel for the texture and mineral characteristics. Taking these pictures was an exercise in patience as it required a very steady hand. As soon as the picture showed up I started taking as many pictures as possible to increase the chance at getting a good one. So, there are three sets of pictures, two to each set. The first picture in each set is of the thin section in plane transmitted light. As to be expected, not much can been seen except for garnets, the outlines of some biotites and what I’m thinking is an amphibole that’s seen better days. The second set of pictures is the same image, but in crossed polar light.
Set One: garnet, biotite and quartz
Set 2: What I’m thinking is amphibole. the 120 degree cleavage isn’t readily apparent, but I’m finding metamorphic thin sections don’t necessarily reveal all their secrets easily
Set 3: Quartz and biotite. The first picture isn’t the greatest because I had a hard time controlling the glare at the bottom.