Quartz Monzonite 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.

Quartz Monzonite Hand Sample

qmznhs_001. Quartz monzonite hand sample of the 75 Ma Tobacco Root Batholith, SW Montana, USA. John Brady collection, Smith College sample (JB-10). Centimeter scale.



Quartz Monzonite Hand Sample

qmznhs_002. Quartz monzonite hand sample of the Ausable Syenite, Ausable, New York, USA. There is too much plagioclase for this rock to be a syenite. Wards Collection of North American Rocks, Smith College sample (WS-20).



Tonalite Hand Sample

qmznhs_003. This rock has crystals of pink K-feldspar, plagioclase feldspar, quartz, hornblende, and mica. This sample is from Garfield, Chaffee County, Colorado, USA. The sample is 8.5 cm across. University of North Dakota sample. Photograph by Dexter Perkins and students. To see a zoomable, 3D image of this sample click here.