Geology

  1. Home
  2. Education
  3. Geology

Spherulites in Obsidian

Obsidian Picture Gallery

By , About.com Guide

See More About:

Obsidian flows may contain droplets of fine-grained feldspar or quartz. These are not amygdules as they were never empty; instead they are called spherulites.

4 of 9

Gallery Index
Little mineral clustersPhoto (c) 2008 Andrew Alden, licensed to About.com

Geology

  1. Home
  2. Education
  3. Geology
  4. Rocks
  5. More on Igneous Rocks
  6. Obsidian Picture Gallery - Spherulites in Obsidian>

©2009 About.com, a part of The New York Times Company.

All rights reserved.