Gneiss close-up metamorphism, metamorphic, quartz, feldspar https://geologypics.com/wp-content/uploads/2017/07/geology-pics.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/07/geology-pics.png Marli Miller2012-03-30 23:31:452017-09-03 23:14:09Gneiss close-up
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