Quartz Syenite 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 Syenite Hand Sample

qsynhs_001. Quartz Syenite from Vermontville, Franklin County, New York. This sample is a dark green gramular rock composed mainly of green feldspar and black silicate minerals. Geologic Age is Pre-Cambrian.