Back to the page Microscopic images
Claude Grandpey sent a piece of andesit from Mount Hood which he collected 2008.
A piece of the rock had to be smashed off and crunches with a hammer in order to be able to place it under the microscopes.
SEM Images
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More Info on Mount Hood:
Wikipedia and GVP Summary, GVP Monthly Reports, GVP Data Sources,
Wikipedia on Andesite
