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LOT 2489
Natural History - Amethyst Crystal Geode Section Group [20]
1 3/4 - 2 1/2 in. (1.6 kg total, 45-64 mm).
Comprising large sections of geodes with variously sized amethyst crystals. [20, No Reserve]
ProvenanceFrom Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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LOT 2489
Natural History - Amethyst Crystal Geode Section Group [20]
Sold for (Inc. bp): £20
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Natural History - Historic 'Brazil' Marcasite Mineral Specimen
Sold for (Inc. bp): £33
Displaying metallic green and grey colours, collection number 71. 499 grams, 82 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 - Large Historic 'Brazil' Citrine Crystal Specimen
Sold for (Inc. bp): £72
A cut section displaying toffee-orange brown, white, and light brown colours, collection number 342. 1.03 kg, 15.5 cm
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.
Citrine is also known as 'burnt amethyst', the orange colour is due to ferric iron. -
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Natural History - Fossil Metcanthina Trilobite
Upper Devonian Period, 419-358 million years B.P.Sold for (Inc. bp): £85
A Metacanthina barrandei trilobite showing shell structure, eyes and side antennae; on a matrix. 170 grams, 70 mm
From Hamar Laghdad Formation, Pragian, (Alnif), Morocco, North Africa. From an old Oxfordshire, UK, fossil and mineral collection.
