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LOT 2744
Group of Ten [10] Cut Malachite Slabs
2 3/4 - 7 1/4 in. (1.21 kg total, 7-18.5 cm).
Comprising ten irregular sections showing contrasting light and dark banding on both sides. [10,No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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Fossil Megalodon Giant Shark Tooth
Pliocene Epoch, circa 5.6 million years B.P.Sold for (Inc. bp): £169
A Carcharocles megalodon shark tooth, with serrations and polished tooth enamel. 154 grams, 11.1 cm
From a Cambridgeshire, UK, collection.
Carcharodon megalodon is regarded as one of the largest and most powerful marine predators in vertebrate history and likely had a profound impact on the structuring of the marine communities. Fossil remains indicate that this giant shark reached a length of more than 16 metres (52 ft) and also affirm that it had a cosmopolitan distribution. Scientists suggest that in life it looked like a stockier version of the great white shark, Carcharodon carcharias. -
Amethyst Crystal Geode Display
Estimate: £1,000 - 1,400 (+bp*)
Opening Bid: £540
A rounded geode section, the undulating inner surface lined with small prismatic amethyst crystals; mounted on a custom-made display stand. 10 kg total, 35 cm including stand
From Artigas, Uruguay. Property of a London lady. -
Historic Roman Cut and Polished Roman Imperial Porphyry Sections
Sold for (Inc. bp): £221
Comprising two triangular pieces, cut and polished on several sides, probably recycled material mined in ancient Roman times between the 1st and 5th centuries A.D. 195 grams total, 56-58 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
Mons Porphyrites (today Jabal Abu Dukhkhan) is the mountainous site of a group of ancient quarries in the Red Sea Hills of the inhospitable eastern desert in Egypt, a five-day trip from the Nile during Roman times. They were discovered by Caius Cominus Leugas in 18 A.D., and during the Roman Empire, the mines officially belonged to the emperor and were the only known source of the Imperial Porphyry, Mons Porphyrites. This dark purple stone was associated with royalty and used for prestigious sculpture and architecture. The location of the mines was lost sometime in the 5th century and rediscovered in the early 19th century. Excavations in the area have revealed the well-preserved quarries and the dwelling places of the quarrymen, and also thousands of ostraca have been discovered containing messages that provide details of how the quarrying took place, and of how the highly skilled quarrymen ordered their food.