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LOT 1820
Natural History - Large Size Cut Malawi Agate Crystal Geode Slice Pair
10 1/4 - 10 1/2 in. (1.48 kg total, 26-26.5 cm).
With one polished side showing grey and white banding and an internal cavity with quartz crystals. [2, No Reserve]
ProvenanceFrom Malawi, Africa.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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LOT 1820
Natural History - Large Size Cut Malawi Agate Crystal Geode Slice Pair
Sold for (Inc. bp): £26
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Natural History - Historic Indian Apophyllite with Stolbite Crystal Specimen
Sold for (Inc. bp): £7
The white apophyllite crystals with salmon-pink stilbite. 78 grams, 70 mm
From Poona, India. Collected in person in 2015. From the private mineral collection of Stephen Atkinson, Harpenden, UK. Accompanied by a copy of a letter from the vendor giving details of him collecting these minerals throughout his life. -
Natural History - Historic Galena Crystal
Sold for (Inc. bp): £26
Cuboid with dark surfaces. 102 grams total, 28 mm
From Nenthead, Cumberland, UK. Collected in person in 1965. From the private mineral collection of Stephen Atkinson, Harpenden, UK. Accompanied by a copy of a letter from the vendor giving details of him collecting these minerals throughout his life. -
Natural History - Historic Roman 'Spartan Basalt' Cut & Polished Green Porphyry Section
Sold for (Inc. bp): £442
A large lacquered cut section mined in Greece, probably recycled material mined in ancient Roman times. 574 grams, 23 cm
From Greece. Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).
Also known as Lapis Lacedaemonius and Porfido Verde Antico, a type of green porphyry quarried in Greece. Spartan basalt is a form of andesite or volcanic rock known today only from a single source in the village of Krokees on the Peloponnese in Greece. In addition, ancient sources mention a quarry of Lapis Lacedaemonius in Taygetus.
