Browse Items (21 total)

  • Collection: (KBR) Karroo Igneous Complex -- Birds River, South Africa

KBR- 19.JPG
This is a volcanic breccia from the farm Murrelfontein adjacent to the contact with the gabbro unit. It includes partially melted glass and tridymite, a high temperature polymorph of quartz, and has a brecciated appearance. The breccia has a …
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