Loading, please wait...
![Natural History - 12mm Cut Malachite Slab Group [10]](https://timelineauctions.com/zoom_images/zoomthumb/2/0/208016_900x900.jpg "Natural History - 12mm Cut Malachite Slab Group [10]")
![Natural History - 12mm Cut Malachite Slab Group [10]](https://timelineauctions.com/zoom_images/zoommap/2/0/208016_200x200.jpg "Natural History - 12mm Cut Malachite Slab Group [10]")
![Natural History - 12mm Cut Malachite Slab Group [10]](https://timelineauctions.com/upload/images/items/208016.jpg "Natural History - 12mm Cut Malachite Slab Group [10]")
LOT 2101
Natural History - 12mm Cut Malachite Slab Group [10]
3 3/8 - 4 1/8 in. (1.8 kg total, 8.5-10.5 cm).
With unpolished cut surfaces. [10, No Reserve]
ProvenanceFrom Democratic Republic of the Congo.
Ex 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.
-
Natural History - Historic Cassiterite Crystal Specimen Collection
Sold for (Inc. bp): £46
Comprising three samples with mainly black prismatic crystals. 281 grams total, 33-72 mm
Collected in person from various parts of the world mainly between 1957-1966. From the private mineral collection of Stephen Atkinson, Harpenden, UK. Accompanied by a copy of a letter from the vendor giving details of him collecting these minerals throughout his life. -
Natural History - Large Crinoid Fossil Display Plate
Silurian Period, circa 443-416 million years B.P.Sold for (Inc. bp): £156
Presenting two large Scyphocrinus elegans crinoids with remains of other crinoids. 6 kg, 35 cm
From Morocco, North Africa. From a Lincolnshire, UK, collection. -
Natural History - Fossil Hadrosaur Dinosaur Egg
Late Cretaceous Period, circa 100-66 million years B.P.Sold for (Inc. bp): £1,105
Charonosaurus sp. hadrosaur egg on matrix, retaining evidence of the original leathery surface. 3.66 kg, 16 cm wide
From a North London, UK, collection, 1990s.
Dinosaur eggs are known from about 200 sites around the world, the majority in Asia and mostly in terrestrial (non-marine) rocks of the Cretaceous Period. It may be that thick calcite eggshells evolved during the Cretaceous (145 to 65 million years ago). Most dinosaur eggs have one of two forms of eggshell that are distinct from the shells of related modern animal groups, such as turtles or birds; however, some eggs closely resemble the type of shells seen in present day ostrich eggs.
