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LOT 2908
Very Large Cut and Polished Blue Agate Crystal Geode Slice
10 in. (679 grams, 25.5 cm).
Showing fine banding and a crystal-lined centre, dyed to a vibrant dark blue colour. [No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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LOT 2908
Very Large Cut and Polished Blue Agate Crystal Geode Slice
Sold for (Inc. bp): £111
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Historic Spartan Basalt Cut and Polished Dark Green Porphyry Slab
Sold for (Inc. bp): £1,170
Cut and polished section, mined in Greece, cut and polished on one side, probably recycled material mined in ancient Roman times; mounted on a custom-made metal display stand. 9.82 kg total, 44 cm including stand
Acquired on the UK art market since the 1990s. From the private collection of a Somerset gentleman.
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. -
Mixed Cut and Polished Agate Half Geode Group [10]
Sold for (Inc. bp): £20
Comprising ten cut geode halves showing crystalline centres. 1.66 kg total, 4.7-10.7 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Monumental Geode Section with Druzy Quartz Stalagmites
Estimate: £4,000 - 6,000 (+bp*)
Opening Bid: £2,200
A rounded geode section with towering stalagmites with druzy grey quartz; mounted on a custom-made display stand. 68.4 kg total, 100 cm including stand
From Artigas, Uruguay. Property of a London lady.