Diorite Thin Section Photos. Click on any photo for a larger image. Some of the larger images may be on other web sites and will open in a new window.

KI-3371 Thin Section

diots_001. Diorite (PCS 91) from the Kiglapait Layered Intrusion, Nain, Labrador (KI-3371) S.A. Morse Collection. Olivine, Augite, Plagioclase (An46).



KI-4144 Thin Section

diots_002. Diorite (PCS 94.4) from the Kiglapait Layered Intrusion, Nain, Labrador (KI-4144) S.A. Morse Collection. Olivine, Augite, Plagioclase (An36).



Missing Thin Section

diots_003. Diorite from Snarum, Norway. Krantz Collection (K-28).



Diorite Thin Section

diots_004. Diorite from Loch Dee, Scotland. Devonian (~408 Ma) Loch Doon pluton, a Late Caledonian pluton that is chemically zoned from a dioritic margin to a more silica-rich interior. The border scales are in cm. Image from the UK Virtual Microscope.



Diorite Thin Section

diots_005. Coarse diorite composed of plagioclase and augite with opaque oxides. Western Minerals collection of samples from the Tertiary Ring Complexes on the Isle of Mull, Scotland. Smith College sample (ML-10).