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![Natural History - Yellow Calcite Mineral Specimen Group [100]](https://timelineauctions.com/zoom_images/zoomthumb/2/1/211341(1)_900x900.jpg "Natural History - Yellow Calcite Mineral Specimen Group [100]")
![Natural History - Yellow Calcite Mineral Specimen Group [100]](https://timelineauctions.com/zoom_images/zoommap/2/1/211341(1)_200x200.jpg "Natural History - Yellow Calcite Mineral Specimen Group [100]")
![Natural History - Yellow Calcite Mineral Specimen Group [100]](https://timelineauctions.com/upload/images/items/211341(1).jpg "Natural History - Yellow Calcite Mineral Specimen Group [100]")
LOT 2507
Natural History - Yellow Calcite Mineral Specimen Group [100]
5/8 - 2 5/8 in. (1.13 kg total, 14-68 mm).
Comprising a large quantity of bright yellow specimens. [100, No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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 2507
Natural History - Yellow Calcite Mineral Specimen Group [100]
Sold for (Inc. bp): £7
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![Natural History - Agate Crystal Geode Cut Section Collection [3]](https://timelineauctions.com/upload/images/items/small/211408-s.jpg)
Natural History - Agate Crystal Geode Cut Section Collection [3]
Sold for (Inc. bp): £26
Comprising three examples in enhanced blue colour, two showing an internal cavity filled with small quartz crystals. 962 grams total, 7.1-11 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Amethyst Mineral Specimen
Sold for (Inc. bp): £33
A free-standing section of a geode with amethyst crystals of good colour. 657 grams, 11 cm high
From a Lincolnshire, UK, collection. -
Natural History - Fossil African 'T-Rex' Tooth
Cretaceous Period, circa 145-93 million years B.P.Sold for (Inc. bp): £780
With some good enamel, from Carcharodontosaurus saharicus. 10.3 grams, 51 mm
From the Tegana formation of the Sahara Desert, Morocco, North Africa. Acquired during 1980s. From an old Lincolnshire, UK, collection.
The Carcharodontosaurus saharicus was one of the largest predators (larger than its distant North American T-Rex cousin) of all time and is also related to Allosaurus and the South American Giganotosaurus.
