- #36
DrDu
Science Advisor
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Nice pictures! However, I am generally missing pictures taken with only the polariser without analyzer. PP and epi-darkfield are fun, but not of diagnostic value. The olive-green interference colours in the pictures of the metamorphic biotite could be anomalous interference colours typical of chlorite.
The mineral on the last picture could also be anorthoclase, which also shows microcline-like structure.
The mineral on the last picture could also be anorthoclase, which also shows microcline-like structure.
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