This granite has an interesting texture, which is made visible
by viewing it with crossed polarisers. Firstly, it has some very
large feldspar crystals, set among smaller ones: part of a 2 cm
feldspar is seen at the bottom of the photo. Secondly, at right
of centre it has quartz and feldspar forming an intergrowth -
pairs of crystals grown through each other in a complex
pattern. Field of view 8 mm, polarising filters