An attractive combination specimen of an unusual habit of lustrous dark steel-grey Sphalerite, displaying deeply incised triangular twinned crystals measuring overall 3.4 cm. Associated with prismatic colourless, gemmy Quartz crystals to 2.5 cm, on deep apple-green, micro-crystalline Andradite garnet matrix, with an area of Galena along with further crystals of Sphalerite. A fine specimen of Sphalerite twinning from
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