Loading, please wait...
LOT 2479
Group of Thirty-Two [32] Cut Half Agate Geode and Blue Calcite Mineral Specimens
1 1/8 - 2 in. (1.85 kg total, 29-52 mm).
Boxed group of cut agate geodes, most with crystal-lined cavities, and pale-blue calcite specimens. [32, No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
TimeLine 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:
TimeLine is a leading auction house specialising in antiquities, ancient art, collectables, natural history, coins, medals, and books. Our auctions offer museums, collectors, historians, and enthusiasts the opportunity to acquire unique and historically significant pieces.
LOT 2479
Group of Thirty-Two [32] Cut Half Agate Geode and Blue Calcite Mineral Specimens
Sold for (Inc. bp): £20
-
Fossil Asaphus Trilobite in Matrix
Middle Ordovician, circa 470-458 million years B.P.Sold for (Inc. bp): £182
Asaphus plautini with a semicircular headshield and tailshield separated by well-defined ribs. 140 grams, 76 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. -
Large Cut and Polished Banded Agate Crystal Geode Slice
Sold for (Inc. bp): £52
Thick slice of 'fortress' agate with grey, brown, black and orange banding, the internal cavity lined with small pale purple amethyst crystals. 575 grams, 24.6 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Historic Roman 'Spartan Basalt' Cut Green Porphyry Strip Group
Sold for (Inc. bp): £143
Cut and polished sections, mined in Greece, cut and polished on both sides, probably recycled material mined in ancient Roman times. 225 grams total, 4.4-15.1 cm
Ex 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.