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LOT 2722
Natural History - Historic 'Chokotka Peninsula, U.S.S.R.' Demantoid Mineral Specimen
3 1/2 in. (75 grams, 87 mm).
With apple-green and greenish white crystals, the calcium has been replaced by traces of chromic acid, collection number 461. [No Reserve]
ProvenanceAcquired on the UK mineral and fossil market, since 1970.
From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent.
Accompanied by an original historic index file card and an old Gregory, Bottley & Lloyd label.
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AUCTIONS:
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LOT 2722
Natural History - Historic 'Chokotka Peninsula, U.S.S.R.' Demantoid Mineral Specimen
Sold for (Inc. bp): £52
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Natural History - Historic 'Cornwall' Bournonite and Arsenopyrite or Sphalerite Mineral Specimen
Sold for (Inc. bp): £52
Displaying the characteristic 'cog-wheel' shaped twins of bournonite, collection number 420. 135 grams, 62 mm
Acquired on the UK mineral and fossil market, since 1970. From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent. Accompanied by an original historic index file card and an old Gregory, Bottley & Lloyd label. -
Natural History - Historic 'Mexico' Phantom Calcite Crystal Specimen
Sold for (Inc. bp): £52
Displaying dark chocolate-brown, red brown, and creamy white colours, collection number 209. 237 grams, 97 mm
Acquired on the UK mineral and fossil market, since 1970. From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent. Accompanied by an original historic index file card. -
Natural History - Historic 'Brazil' Tourmaline Mineral Specimen
Sold for (Inc. bp): £33
Black variety with crystals showing striations, collection number 72. 120 grams, 53 mm
Acquired on the UK mineral and fossil market, since 1970. From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent. Accompanied by an original historic index file card.