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Extraordinary Iridescent Ammonite Fossil

$175,000List Price

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Tyrannosaurus Rex Tooth Fossil
Located in London, GB
FOSSILISED TYRANNOSAURUS REX TOOTH Circa 67 million years ago H. 12.5 cm x W. 4.2 cm PROVENANCE Found in Butte County, South Dakota, USA, Summ...
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Antique 15th Century and Earlier American Natural Specimens

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Other

Tyrannosaurus Rex Tooth Fossil
$130,403
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Petrified Incense Cedar Wood Fossil
Located in London, GB
This spectacular cross section of petrified cedar wood comes from Saddle Mountain, Washington. It is remarkably large with a wonderful and highly aesthetic shape, exhibiting vibrant ...
Category

Antique 15th Century and Earlier Natural Specimens

Materials

Petrified Wood

Tyrannosaurus Rex Tooth in Fossil Matrix
Located in London, GB
Tyrannosaurus Rex Tooth in Fossil Matrix. Late Cretaceous, circa 65 Million years before present. Lance Formation, Marchant Ranch Quarry, Niobrara County, Wy...
Category

Antique 15th Century and Earlier Natural Specimens

Materials

Other

Large Chondrite Meteorite with Regmaglypts
Located in London, GB
NWA 12759 Stone, Chondrite - L5 18.3 KG “This specimen of the NWA 12759 L5 chondrite has a smooth posterior fusion crust where meteoritic melt pooled as the rock descended through the atmosphere and was heated by friction with molecules of air. The meteorite is from the L-chondrite asteroid that was destroyed by an energetic collision 470 million years ago.” Dr Alan E. Rubin, PhD Department of Earth, Planetary, and Space Sciences, UCLA Detached from its parent body by a mighty impact, this large, oriented meteorite travelled over a hundred million miles through space before falling to Earth in the North African desert. Beautiful regmaglypts radiate from the apex of its cone shaped nose. These elongated dimples formed when streaks of superheated molten rock streamed off the meteor’s surface as it blazed through the atmosphere. The entire piece is coated in a glossy, umber-coloured fusion crust and close examination reveals remnants of encrusted, orange dirt. Whilst most meteors tumble as they travel through the Earth’s atmosphere, oriented meteorites...
Category

Antique 15th Century and Earlier Moroccan Natural Specimens

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Stone

Petrified Conifer Wood from Arizona
Located in London, GB
A large section of a petrified conifer tree trunk, (Araucarioxylon arizonicum) from Northern Arizona, dating to the Triassic period, circa 225 million years ago. Over hundreds of m...
Category

Antique 15th Century and Earlier American Wall-mounted Sculptures

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Quartz

A Piece of Mars - Martian Meteorite
Located in London, GB
MARTIAN STONE - NWA 14713 Lherzolitic shergottite 127 g “This 127-gram fragment of the NWA 14713 meteorite displays a green-black mottled exterior. The rock is a martian shergottite (a basalt) composed mainly of coarse grains of pyroxene as well as calcium-plagioclase glass. This glass, called maskelynite, formed from crystalline plagioclase when the specimen was blasted off the surface of Mars by an energetic collision. There are currently less than 350 known martian meteorites...
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Antique 15th Century and Earlier North African Natural Specimens

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Large Red Iridescent Ammonite Fossil
Located in Wormelow, Herefordshire
A large red iridescent ammonite fossil dating from the late cretaceous period (100.5 – 66 million years ago). This huge plancenticeras ammonite is approximately 16 inches tall and has an iridescent lustre that showcases a vibrant red hue. Once a living creature, this ammonite has developed its red iridescent lustre over millions of years of compression, transforming into a striking gemstone. A rare find. Provenance: From the fascinating collection of Gordon Walkden (1944-2022), emeritus Professor of Geology at Aberdeen University. Affectionally known as Aberdeen’s answer to Indiana Jones, Walkden contributed enormously to research through his papers and talks on British marbles, minerals and fossils...
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Fossil Agate Coral with Iridescent Ammonites
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Fossil agate coral adorned with iridescent fossil ammonites. The grey piece of fossil agate coral is cut and polished and adorned with the iridescent...
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Antique 15th Century and Earlier American Organic Modern Natural Specimens

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An Ammonite Fossil
Located in Schellebelle, BE
A beautiful Ammonite Fossil, this extinct invertebrates marine animal lived 160 million years ago, beautiful patina and shine of the stone, beautiful array of colors, very decorative...
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Antique 15th Century and Earlier Malagasy Natural Specimens

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Large Fossil Stone Ammonite
Located in Alessandria, Piemonte
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Collection of 7 Ammonite Fossils
Located in Wormelow, Herefordshire
A superb set of 7 ancient prehistoric ammonite fossils presented on our small turned painted plaster bases. This group showcases ammonites of varyi...
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Pair of Ammonite Fossils
Located in Los Angeles, CA
Pair of fossil ammonite stones. These are generally found in the ocean and have a mixture of limestone seashells, etc from years of fossilizing. One is larger than the other. Lar...
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