Rhyolite obsidian breccia in an ash-rich matrix (Nez Perce Creek flow)with Spherulites (pink to grey balls with radiating crystals).
Summary
Rhyolite obsidian breccia in an ash-rich matrix (Nez Perce Creek flow)with Spherulites (pink to grey balls with radiating crystals).
Tags
Date
2018
Location
Source
National Parks Gallery
Copyright info
Public Domain Dedication