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Title: Porphyritic felsite
Item Name: Rocks


Example of felsite (a fine grained volcanic rock) collected by Hull Geological Society from Holderness beaches. Dark grey with whitish speckles. Smooth pink surface with dark inclusions.

Materials: felsite
Measurements: L:7.3cm; W: 6cm
ID_Number: ERYMS (BAG) : 2019.11.6