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You have no idea how grateful I am for this video!
A lovely suite of microminerals! I suspect most of the suspected opal is calcite. Easiest way to ID is with SW UV, even tiny amounts of opal will fluoresce brilliant green.
You have no idea how grateful I am for this video!
A lovely suite of microminerals! I suspect most of the suspected opal is calcite. Easiest way to ID is with SW UV, even tiny amounts of opal will fluoresce brilliant green.