Minerals / Hemimorphite 2, Henfwlch. (CWO)

Hemimorphite, Zn4(Si2O7(OH)2.H2), Henfwlch mine, West Wales. When these specimens of hemimorphite are observed under the microscope sprays of radiating bladed clear crystals can be seen. Also common at this mine are microcrystalline globules which can just about be seen in the centre left pocket, and the top and bottom right pockets. When I can arrange it I will update this entry with better photographs. Each pocket measures 6cm by 4.5cm. 

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