By: magic-gigapans
Image: Callan Bentley, Mid-Atlantic Geo-Image Collection
License: Creative Commons Non Commercial ⧉

Uploaded: 30 Apr 2020
Last Updated: 18 May 2020

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Spinifex texture komatiite (ultramafic composition volcanic rock) from the Red Lake Greenstone Belt, northwestern Ontario. The sample experienced retrograde metamorphism at greenschist facies. Spinifex olivine has been replaced by actinolite. Age = 3.0 Ga. Sample courtesy of Christie Rowe. Sample prepped using a pressure washer.