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LOT 2779
Natural History - Amethyst Crystal Geode Segment
4 5/8 in. (704 grams, 11.8 cm).
Freestanding and cut to a triangular shape, well-formed dark purple amethyst crystals. [No Reserve]
ProvenanceFrom Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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LOT 2779
Natural History - Amethyst Crystal Geode Segment
Sold for (Inc. bp): £13
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Natural History - Historic Mineral Specimen Collection
Sold for (Inc. bp): £20
Comprising: orange calcite from North Transvaal, South Africa, collection number 314; cupro-adamite on goethite from Laurium, Greece, collection number 523 with old Gregory, Bottley and Lloyd label; a cut and polished amethyst section from Brazil, collection number 360; sodalite, collection number 84; grey agate, collection number 165; four samples of marcasite from Sparta, Illinois, USA, collection number 612; epidote on quartz from Cape Province, South Africa, collection number 418; realgar on orpiment from Nevada, USA, collection number 147 with an old Gemstones Ltd. invoice; green conichalcite, collection number 497. 433 grams total, 37-73 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. Each specimen accompanied by an original historic index file card. -
Natural History - Historic 'Tanzania' Ruby Chrom-zoisite Mineral Specimen
Sold for (Inc. bp): £59
Displaying vivid emerald-green, ruby-red and greyish black colours, collection number 381. 140 grams, 76 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.
This form of ruby zoisite can only be found in Tanzania. -
Natural History - Historic Mineral Specimen Collection
Sold for (Inc. bp): £39
Comprising: botryoidal psilomelane from Stanislawow, Poland, collection number 608, with an old Geologisch Centrum, Netherlands, label; rosasite and calcite on goethite and limonite from Mapimi, Durango, Mexico, collection number 61; sphalerite on quartz, collection number 187; pyrite from Italy, collection number 339; a cut and polished crazy laced agate nodule, collection number 299; chalcopyrite on baryte, collection number 238; celestine from Malagasy Republic, Africa, collection number 29; calcite on pyrite from Levant Mine, Cornwall, England, collection number 474; calcite from England, collection number 102. 1 kg total, 36-89 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. Eight specimens accompanied by an original historic index file card.
