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LOT 2554
Historic Roman 'Spartan Basalt' Cut Green Porphyry Strip Group
1 3/4 - 6 in. (225 grams total, 4.4-15.1 cm).
Cut and polished sections, mined in Greece, cut and polished on both sides, probably recycled material mined in ancient Roman times. [7, No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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.
CONDITIONTimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process
AUCTIONS:
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LOT 2554
Historic Roman 'Spartan Basalt' Cut Green Porphyry Strip Group
Estimate £80 - 100€93 - 116 (for guidance only)$108 - 135 (for guidance only)
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Polished Fossil Orthoceras Egg Pair
Devonian Period, circa 417-354 million years B.P.Estimate: £20 - 30 (+bp*)
Opening Bid: £5
Comprising two polished fossiliferous eggs, each showing a partial Orthoceras specimen. 300 grams total, 49-67 mm
From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent. -
Stone Arrowhead Embedded in a Leidyosuchus Crocodile Vertebra
Cretaceous Period, circa 100-66 million years B.P.Estimate: £30 - 40 (+bp*)
Bids: 1 | Current Bid: £5
An almost complete vertebra with an old inked collector's number '43'; the arrowhead embedded later for display. 76 grams, 10 cm
From Oldman Formation, Princess Alberta, Canada. From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent. -
![Large Group of Four Hundred [400] Cut and Polished Mini Agate Geode Halves](https://timelineauctions.com/upload/images/items/small/255956-s.jpg)
Large Group of Four Hundred [400] Cut and Polished Mini Agate Geode Halves
Estimate: £50 - 70 (+bp*)
Opening Bid: £5
Large group of cut geodes with internal cavities, most with crystal-lined interiors. 2.02 kg total, 16-40 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
