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![Large Group of Forty-Two [42] Cleaved Optical Calcite Specimens](https://timelineauctions.com/zoom_images/zoomthumb/2/5/255972_900x900.jpg "Large Group of Forty-Two [42] Cleaved Optical Calcite Specimens")
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![Large Group of Forty-Two [42] Cleaved Optical Calcite Specimens](https://timelineauctions.com/upload/images/items/255972.jpg "Large Group of Forty-Two [42] Cleaved Optical Calcite Specimens")
LOT 2515
Large Group of Forty-Two [42] Cleaved Optical Calcite Specimens
1 - 1 5/8 in. (1.54 kg total, 24-42 mm).
Comprising forty-two calcite rhombs displaying characteristic double refraction. [42, No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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LOT 2515
Large Group of Forty-Two [42] Cleaved Optical Calcite Specimens
Sold for (Inc. bp): £59
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Very Large Spinosaurus Dinosaur Fossil Tooth
Cretaceous Period, circa 125-113 million years B.P.Sold for (Inc. bp): £169
Conical tooth with root; repaired. 43.1 grams, 12.5 cm
From a Lincolnshire, UK, collection.
The Spinosaurus was both a beachcomber-type scavenger and an active hunter, taking small stranded Plesiosaurs, Pterosaurs, turtles and large fish; adults weighed up to 21 tonnes and grew up to 18 meters long. -
Fossil Fish in Matrix
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £117
On a rectangular matrix, possibly Diplomystus. 335 grams, 16.5 cm
From Green River formation, Wyoming, USA. 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. -
Polished Goniatite Fossil Triangular Lidded Box
Devonian Period, circa 400 million years B.P.Sold for (Inc. bp): £26
Carved from a fossiliferous stone and the lid set with a goniatite specimen. 557 grams, 12.8 cm
Ex Cambridgeshire, UK, collection.
