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  • Title is exactly "Biotite granite"

Biotite is variable in amount, but it is always evenly distributed

NS17Macro2.JPG
Macroscopic: Grey massive biotite, muscovite granite. Overall white and grey color. Only slightly weathered.  Microscopic: Abundant in alkali feldspar, plagoclase, quartz and mica. Thin section pictures in XPL unless otherwise noted in the title of…
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