SEPTARIAN CONCRETION

Description

SEPTARIAN CONCRETION
BOOM, BELGIUM, OLIGOCENE, 30 MILLION YEARS B.P.
a sculptural septarian concretion with calcite crystal growth filling natural cavities within limestone, formed as mineral rich sediments contracted and fractured, raised on a bespoke mount
48cm tall

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SEPTARIAN CONCRETION

Lot 0009

Estimate £1,000-£1,500May 28, 2026, 8:00 AM EDT

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Form Through Time

May 28, 2026 8:00 AM EDT

London, England, UK

LARGE IRIDESCENT AMMOLITE SPECIMEN: LARGE IRIDESCENT AMMOLITE SPECIMEN BEARPAW FORMATION, CANADA, UPPER CRETACEOUS, 75 - 72 MILLION YEARS B.P. specimen of Placenticeras meeki showing iridescence of red, green, yellow and orange to both

4 days LeftLARGE IRIDESCENT AMMOLITE SPECIMEN

STEGODON JAW: STEGODON JAW EARLY PLEISTOCENE, SOUTHEAST ASIA, C. 2 - 1 MILLION YEARS B.P. a fine specimen displaying a deep black patination, a 1 -2 million-year-old member of the Elephantidae subfamily, Stegodon

4 days LeftSTEGODON JAW

DINOSAUR VERTIBRAE, SPINOSAURUS AEGYPTIACUS: DINOSAUR VERTIBRAE, SPINOSAURUS AEGYPTIACUS TEGANA FORMATION, CRETACEOUS PERIOD, KEM KEM BASIN, MOROCCO, 96 - 93 MILLION YEARS B.P. a large vertebrae from the enormous Cretaceous therapod,

4 days LeftDINOSAUR VERTIBRAE, SPINOSAURUS AEGYPTIACUS

THE TOOTH OF A TYRANNOSAURUS-REX: THE TOOTH OF A TYRANNOSAURUS-REX HELL CREEK FORMATION, DAWSON COUNTY, MONTANA, LATE CRETACEOUS, C. 67?66 MILLION B.P. a well-preserved tooth of a Tyrannosaurus rex, with fine serration, Hell Creek

4 days LeftTHE TOOTH OF A TYRANNOSAURUS-REX

LARGE MEGALODON TOOTH: LARGE MEGALODON TOOTH SOUTH CAROLINA, MIOCENE PERIOD, 10 - 15 MILLION YEARS B.P. a fine Otodus megalodon tooth, gradated grey-black in colour, with fine serrations, displaying a distinctive ?wave?

4 days LeftLARGE MEGALODON TOOTH

PETRIFIED WOOD SLICE: PETRIFIED WOOD SLICE NEVADA, TRIASSIC PERIOD, C. 230 - 200 MILLION YEARS B.P. this well-preserved, cross section of fossilized conifer features distinct caramel and charcoal hues, the bark texture

4 days LeftPETRIFIED WOOD SLICE

ACHEULEAN STONE CHOPPER: ACHEULEAN STONE CHOPPER MOROCCO, LOWER PALEOLITHIC, C. 1,000,000 YEARS BEFORE PRESENT knapped grey stone, of protobiface form, raised on a bespoke mount 14.9cm tall Private collection, Belgium, by

4 days LeftACHEULEAN STONE CHOPPER

FLINT HANDAXE: FLINT HANDAXE OISE, NORTHERN FRANCE, PALEOLITHIC PERIOD, C. 300,000 ? 100,000 B.C. knapped flint, a large and impressive silver and grey flint handaxe, uncovered in Oise, northern France, raised on a

4 days LeftFLINT HANDAXE

FLINT HANDAXE: FLINT HANDAXE TROYES, NORTHEASTERN FRANCE, MIDDLE PALEOLITHIC PERIOD, C. 300,000 ? 100,000 B.C. knapped flint, with a beautiful foliate form, a large and impressive buff and ochre coloured handaxe,

4 days LeftFLINT HANDAXE

NEANDERTHAL JASPER TOOLS: NEANDERTHAL JASPER TOOLS MIDDLE PALEOLITHIC, FONTMORE, CENTRAL FRANCE, C. 300,000 - 40,000 B.P. knapped jasper, a collection of four bifaces, ranging from 5.3 to 10.2 cm long, each displaying a

4 days LeftNEANDERTHAL JASPER TOOLS

LARGE FLINT AXEHEAD: LARGE FLINT AXEHEAD SCANDINAVIA, 4000 - 3000 B.C. knapped flint, the stone worked into a rectangular form with a sharp tapering blade, finely flaked, displaying hues of caramel brown, silver and dark

4 days LeftLARGE FLINT AXEHEAD

LARGE FLINT AXEHEAD: LARGE FLINT AXEHEAD SCANDINAVIA, 4000 - 3000 B.C. knapped flint, the stone worked into a rectangular form with a sharp tapering blade, finely flaked, displaying hues of mottled silver, raised on a

4 days LeftLARGE FLINT AXEHEAD

LARGE BRITISH NEOLITHIC FLINT AXEHEAD: LARGE BRITISH NEOLITHIC FLINT AXEHEAD UNITED KINGDOM, NEOLTHIC PERIOD, C. 3500 B.C. knapped flint, of elongated oval form, bifacially-flaked, sightly tapering butt and rounded cutting edge,

4 days LeftLARGE BRITISH NEOLITHIC FLINT AXEHEAD

THE OLDEST MATERIAL IN THE SOLAR SYSTEM: THE OLDEST MATERIAL IN THE SOLAR SYSTEM ALLENDE, CARBONACEOUS CHONDRITE, CV3, FELL CHIHUAHUA, MEXICO, 26?58' N, 105?19' W The present example comes from the world-famous Allende meteorite, one of the

4 days LeftTHE OLDEST MATERIAL IN THE SOLAR SYSTEM

THE CHRISTMAS METEORITE: THE CHRISTMAS METEORITE CHONDRITE, L6, FELL BARWELL, LEICESTERSHIRE, UNITED KINGDOM, 24TH DECEMBER 1965 one of the largest fragments olivine-hypersthene chondrite, with trace iron, L6 classified

4 days LeftTHE CHRISTMAS METEORITE

A FRAGMENT OF THE METEORITE THAT CONTAINS EXTRATERRESTRIAL WATER: A FRAGMENT OF THE METEORITE THAT CONTAINS EXTRATERRESTRIAL WATER CHONDRITE, H3-6, FELL ZAG, WESTERN SAHARA, AUGUST 4TH 1998 H3-6 regolith breccia, a sculptural, oriented specimen with fusion crust

4 days LeftA FRAGMENT OF THE METEORITE THAT CONTAINS EXTRATERRESTRIAL WATER

A SLICE OF THE PLANET MARS: A SLICE OF THE PLANET MARS NWA 2737, CHASSIGNITE one of the rarest objects on Earth, a specimen of rock from the planet Mars, coarse-grained olivine, set within a dark grey crystalline matrix, with

4 days LeftA SLICE OF THE PLANET MARS

LARGE AND SCULPTURAL ORIENTATED METEORITE: LARGE AND SCULPTURAL ORIENTATED METEORITE CHONDRITE, SAHARA DESERT, NORTH-WEST AFRICA a substantial and highly sculptural orientated chondrite, exhibiting a trapezoidal form with traces of fusion

4 days LeftLARGE AND SCULPTURAL ORIENTATED METEORITE

PALLASITE METEORITE CROSS SECTION SLICE: PALLASITE METEORITE CROSS SECTION SLICE SEYMCHAN, MAGADAN DISTRICT, RUSSIA (62?54? N, 152?26? E), FORMED 4.56 BILLION YEARS B.P. the slice with olivine crystals suspended within the metal matrix and

4 days LeftPALLASITE METEORITE CROSS SECTION SLICE

STROMATOLITE SPECIMEN: STROMATOLITE SPECIMEN UPPER TACHGAGALT FORMATION, MOROCCO, PRECAMBRIAN PERIOD, 635 ? 541 MILLION YEARS B.P. cut and polished stromatolite (Conophyton amantourartensis), displaying undulating and

4 days LeftSTROMATOLITE SPECIMEN

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