GRD00O4S0
110-G36
Greywacke
Unknown
None
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1
Ritter 154 › Cabinet 17 › Drawer H
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Original label: Wildeman graywacke. Hartz Mountains. Coll. no. 46C.
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Germany
Hartz Mountains
Latitude: 51.7°
Longitude: 10.6°
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2.5
plane
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2.5
crossed
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scan
crossed
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scan
plane
GRD00O4T0: 45% quartz, 40% lithics (chert, quartzite), 10% mica, 5% plagiocase (polysynthetic twinning) . Trace opaques and glauconite. Thin section cracked. Altered? (C. Eichler)
N/A
N/A