Ystrad Mine, Betws Garmon, Gwynedd, Wales, UK

Cleavage masses of brownish red siderite with minor amounts of stilpnomelane occurring as black micro crystals Jason Evans collection

© J.J. Evans

Vein material. Banded Siderite with bands of Stilpnomelane and Quartz. SCALE- 1”/1cm.

© JamesHutchins

Nice location piece featuring attractive and highly lustrous brown platy crystals of siderite. Self-collected in July, 1967 whilst on holiday in Snowdonia.