Granite main content.


Part of Hall of Planet Earth.


For Educators

Topic: Earth Science

Subtopic: Minerals and Resources

Keywords: Feldspar, Mica, Minerals, Quartz, Granite, Mineralogy

Audience: General

This pink granite crystallized from magma. It contains potassium feldspar (pink), albite feldspar (white), quartz (gray), and biotite mica (black). The chemical composition is similar to that of the granite pegmatite.

Donated by New England Stone Industries, Inc., Esmond, Rhode Island