Septarian Nodules

Turtlestone is a rare English marble cut from large natural sphere of rock called a Septarian Nodule which formed in the Oxford clay in the Jurassic period, 150 million years ago, ...

Large Septarian Nodule with log in puzzle part

A vintage buffalo made out of carved and polished septarian nodule stone. Beautiful natural tri color pattern to the stone in yellow, brown, and gray.

This exquisite Polished Septarian Nodule from Madagascar is a one-of-a-kind geological masterpiece.

Belgium calcite Septarian nodule natural form on metallic base.

Pair of Belgium calcite Septarian nodule natural form on metallic base.

Pair of Belgium calcite Septarian nodule natural form on metallic base.

Beautiful Septaria Nodule cross section on metal stand. Septaria Nodules are fossilised mud bubbles and are about 50 to 70 million years old. An important source of these objects is ...

Beautiful Septaria Nodule cross-section on metal stand. Septaria Nodules are fossilized mud bubbles and are about 50 to 70 million years old. A major find site of these objects is Be...

Known for its striking cracked patterns and warm golden crystal formations inside, Septarian nodules originated from ancient seabeds, where sediment and organic matter created these ...

Septarian Nodule marble was formed by soil deposits that dried out, the cracks that were created were filled with Calcite crystals (created from crushed seashells).

A delightful and rare 19th century William IV period Septarian Nodule / turtle stone English marble circular specimen table.

Both an exquisite work of English cabinetmaking and a fascinating relic of natural history, this Regency-style table features an octagonal surface that incorporates a monumentally si...

Turtle stone is an English marble cut from large geological spheres called septarian nodules, so called because of the seven-pointed formation of the calcites, aragonite and limeston...

Turtlestone is an incredibly rare English marble cut from large geological spheres called Septarian Nodules, so called because of seven pointed formation of the calcites, aragonite a...

Both an exquisite work of English cabinetmaking and exceptional relic of natural history, this Regency table features an octagonal surface that incorporates a monumentally-sized and ...

Madagascar Septarian Calcite nodule slab on aluminum base.

Madagascar Septarian Calcite nodule slab on aluminum base.

Madagascar Septarian Calcite nodule end cut Septarian Calcite is a combination mineral: It is yellow calcite, brown aragonite, grey limestone and white/clear barite.

Its impressive surface incorporates a monumentally-sized specimen of turtle stone, an English marble formed from fossilized spheres that developed during the Cretaceous period over 7...

a Cut Septarian Nodule on stand from Boom Belgium, Oligocene period, cut and polished to reveal internal calcite and aragonite structures, beautiful patina and shine of the stone, pe...

A beautiful cut Septarian Nodule on stand from Belgium, find in Boom, from the Oligocene Period.

A beautiful cut Septarian Nodule on stand from Belgium, find in Boom, from the Oligocene Period.

A beautiful entire Septarian nodule on an Iron stand, the nodule has been cut in 2 pieces and has been carefully polished.

Sometimes in these layers the septarian nodules occur, the largest of which are up to two meters in size.

Sometimes in these layers the septarian nodules occur, the largest of which are up to two meters in size.

A fine quality William IV neoclassical guéridon, probably Scottish, perfect as a drinks table, with spectacularly figured septarian nodule specimen stone top, inset into a beautiful ...

The Marble: Turtlestone is an English marble cut from large geological spheres called Septarian Nodules which formed in the Oxford Clay during the English Jurassic period, 150 mill...