Diorite Hand Sample 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 Hand Sample

diohs_001. Diorite (PCS 91) from the Kiglapait Layered Intrusion, Nain, Labrador (KI-3371) S.A. Morse Collection, Smith College. Olivine, Augite, Plagioclase (An46).



KI-4144 Hand Sample

diohs_002. Diorite (PCS 94.4) from the Kiglapait Layered Intrusion, Nain, Labrador (KI-4144) S.A. Morse Collection, Smith College. Olivine, Augite, Plagioclase (An36).



K-28 Hand Sample

diohs_003. Diorite from Snarum, Norway. Krantz Collection (K-28), Smith College.



K-28 Hand Sample

diohs_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 sample is 5 cm across. Image from the UK Virtual Microscope.



K-28 Hand Sample

diohs_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).



K-28 Hand Sample

diohs_006. Diorite from Electric Peak, Yellowstone National Park, Wyoming, USA. Minerals present include hypersthene, augite, hornblende, biotite, plagioclase, orthoclase, quartz, magnetite, and apatite. Cenitmeter scale. US Geological Survey Study Collection, Hamilton College (USGS-94). To see the original, zoomable image on ArtStor click here.