Original file (668 × 674 pixels, file size: 291 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:23, 10 March 2006 |
![]() | 668 × 674 (291 KB) | Zimbres | == Summary == Polarizing microscope picture of thin section taken in crossed polarized light. The green mineral is biotite and the coloured one is muscovite. The black inclusion in biotite is magnetite. Rock:Nepheline syenite gneiss Local:Rio de Janeiro |
Original file (668 × 674 pixels, file size: 291 KB, MIME type: image/jpeg)
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 00:23, 10 March 2006 |
![]() | 668 × 674 (291 KB) | Zimbres | == Summary == Polarizing microscope picture of thin section taken in crossed polarized light. The green mineral is biotite and the coloured one is muscovite. The black inclusion in biotite is magnetite. Rock:Nepheline syenite gneiss Local:Rio de Janeiro |