Attribution-Share Alike 4.0 truetrue English Iridescence effect on grey labradorite author name string: Flester Iulian Wikimedia username: Iflester URL:...
consist of felspars which, from their extinction -angles, appear to be labradorite, but which are, for the most part, in too advanced a stage of alteration...
therefore as a kind of pseudomorph, the result of the alteration of labradorite or some plagioclase felspar. It is the mineral often called saussu- rite...
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