Dragon Stone
Septaria egg of Madagascar
Septaria Madagascar egg
Also known as Dragon Stone
Septaria is a stone composed of a mixture of yellow calcite and sandstone, found mainly on the island of Madagascar, characterized by highly visible shrinkage cracks. These highly visible cracks, known as Septa, fill with minerals over time.
When the stone is polished, these cracks stand out, giving it a dragon's egg appearance on the outside.
With time, tectonic movements, etc., the nodules can be fractured and new mineral solutions can invade the shrinkage cracks, often calcite.
In our case, Septaria has been polished into an egg shape and the interior has been invaded by a very fine crystallization of calcite. Beautiful crystals.
It's also easy to see why it's called Dragon's Stone: the exterior is very similar to a dragon's egg!
Sold without base
Ref OSM164: Weight: 2.65kg - Height: 16cm
Sold without the base
You can find available bases by typing ball base or egg base in the site search.
High base specially designed to hold a ball or egg
Perfect for ostrich eggs
Not suitable for emu, rhea or swan eggs, for example
Wooden base for ball or sphere - Base - support
Syringe for antidiphtheria serum: Dr Roux's method
Walnut box from the manufacturers RAINAL Frères in Paris
Shark tooth fossil
Otodus Obliquus dating from the Ypresian: 50 million years ago
Dinosaur tooth fossil: Mosasaurus
66 million years old
Provenance: Sidi Daoui (Morocco)
"Tarnier" Forceps - COLLIN: french manufacturer of surgical instruments
Dragon Stone
Septaria egg of Madagascar
Memento Mori sculpted from a deck of cards - Poker
Size S
RED color
Anatomic lithography: "Traité complet de l'Anatomie de l'Homme"
by Dr Bourgery and draughtsman Jacob
Volume 3 - 1844
Amputation case - 19th-century wooden surgeon's case
From COLLIN & Cie, Paris
Ex-Voto heart in clay by Cuore di Argilla - Zodiac
Italy crafts
A contemporary reinterpretation of the traditional ex-voto, originally a votive offering made to a god in request of a grace or in thanks for a grace obtained after a vow.
Anatomical plate: "L'Anatomie de L'Homme" by Dr Bourgery and draughtsman Jacob -1837/1843
Painted botanical plate - Cryptogamy
Voyage to the South Pole and Oceania on the corvettes the Astrolabe and the Zélée, executed by order of the king during the years 1837-1838-1839-1840 under the command of M. Dumont-d'Urville captain of vessel
Published in 1846
Atlas of Natural History - Botany
Cryptogamy
Mosasaur jaw fossil still in its gangue
65 Million Years
Madagascar sawyer ammonite - Cleoniceras fern ammonite
Cleoniceras fern ammonite
100 million year old fossil
Large Marlin rostrum - Size XL
Dimensions: between 83cm and 93cm with base
All the rostrums are unique and different in terms of size, size, color etc
Pictures of illustrations
Shark tooth fossil
Otodus Obliquus dating from the Ypresian: 50 million years ago
Dragon Stone
Septaria egg of Madagascar
