Dating geological specimens

A cut and polished on one side section collected from Wethered shaft at Geevor mine by the mine geologist.

The specimen is 110 mm x 85 mm x 25 mm with an extremely rich 26 mm wide cassiterite seam continuing right through the matrix. A rare one off specimen of native bismuth with bismuthenite needles in the vugs of the quartz gozzan matrix.

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Contact:[email protected] A rich specimen in a stable quartz gozzan matrix, SW UV light shows areas of scheelite, yellow ferritungstite in the vugs between the wolfram and ferberite. Sharp micro crystals on the rear face Size: 140 mm x 60 mm x 40 mm at it's thickest. Contact: [email protected] A rich specimen of chalcopyrite in a quartz killas breccia, cut and polished on one face.

Fine beige to dark brown cassiterite in chlorite cementing the quartz breccia. Bright cubic pyrite in the host matrix of bornite and chalcocite.

Contact: [email protected] A cut and polished on one face, specimen collected from the water filled Droskyn Lode. Contact: [email protected] A very large plate of cassiterite crystals in quartz and topaz on a hard granite matrix. A cut and lightly polished slice115 mm x 45 mm x 5 mm Price: £40.00. Contact: [email protected] A very rich specimen of lode material from 16 Coronation lode Geevor Mine that has been cut and highly polished on one side.

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