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![Polished Mixed Pink Agate Mineral Specimen Group [32]](https://timelineauctions.com/zoom_images/zoomthumb/2/2/227906_900x900.jpg "Polished Mixed Pink Agate Mineral Specimen Group [32]")
![Polished Mixed Pink Agate Mineral Specimen Group [32]](https://timelineauctions.com/zoom_images/zoommap/2/2/227906_200x200.jpg "Polished Mixed Pink Agate Mineral Specimen Group [32]")
![Polished Mixed Pink Agate Mineral Specimen Group [32]](https://timelineauctions.com/upload/images/items/227906.jpg "Polished Mixed Pink Agate Mineral Specimen Group [32]")
LOT 2507
Polished Mixed Pink Agate Mineral Specimen Group [32]
3/4 - 1 3/4 in. (347 grams total, 20-45 mm).
Each displaying attractive light-coloured banding. [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.
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Historic British Mineral Specimen Collection
Sold for (Inc. bp): £20
Comprising: volcanic ash from Borrowdale, Cumberland; hornblende from Sutherland; granite-aplite from Devon; and luxullianite; three with old labels. 2 kg total, 10.3-11.4 cm
Found at various sites in the UK. Ex Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Sawfish Fossil Rostral Spine Group
Cretaceous Period, circa 100-66 million years B.P.Sold for (Inc. bp): £13
Comprising three Onchopristus numidus sawfish rostral teeth. 48 grams total, 48-60 mm
From a Cambridgeshire, UK, collection. -
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Large Rainbow-coloured Carborundum Crystal Display Specimen
Sold for (Inc. bp): £33
A large cluster of silicon carbide showing beautiful iridescence. 1 kg, 16 cm
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.
Carborundum rarely occurs in nature, but is commercially formed by heating carbon and silicon at very high temperatures, producing extremely strong bands of crystals.
