Orthoclase - image 1

Orthoclase

$1,500.00

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A beautiful small miniature from the ancient mine at Stenna Gwyn, St. Stephen-in-Brannel, close to St Austell in Cornwall. This historic mine closed around 1804 and although so famous, specimens are now very rare. A gemmy, pale bluish-green hexagonal Fluorapatite crystal is nicely perched on top of two well terminated Orthoclase crystals, themselves coated with crystallised Muscovite mica. To one side, some pale smoky Quartz crystals, shot through with black Schorl Tourmaline, complete this classic Cornish combination.

Product details

Listed on10/15/2026
SKUCC20295

Current owner

Crystal Classics
Tucson, Arizona, USA
7,614 for sale·5 sold

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Orthoclase
Mineral guide
Learn about Orthoclase
classic potassium feldspar with colors from colorless to pink; famed for Carlsbad, Baveno and Manebach twins and Alpine adularia in clefts.