Dragon Stone
Septaria egg of Madagascar
It's huge!
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 OSM46: Weight: 7.1kg - Height: 23cm average It's huge!
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
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
Madagascar sawyer ammonite - Cleoniceras fern ammonite
Cleoniceras fern ammonite
100 million year old fossil
Entomological box
Butterflies: Asian Papilio
Papilio ulysses - Papilio blumei - Papilio maackii
barracuda in it's glass reliquary box - Sphyraena barracuda
Madagascar sawyer ammonite - Cleoniceras fern ammonite
Cleoniceras fern ammonite
100 million year old fossil
Anatomical articulated skinning
Paper-cardboard articulated mannequin
Human skeleton
Herbalist's or Pharmacist's jar
Antique blank label of the XVIIIth century
Shark tooth fossil
Otodus Obliquus dating from the Ypresian: 50 million years ago
Australian saltwater crocodile skull: Crocodylus porosus
Estuary crocodile
With its CITES permit
30cm
Can only be sold in the European Union- Shengen Area
Flight of butterflies: Heliconius family under glass dome
Flight of Butterflies Morpho didius under a Napoleon III style bell
Superb butterflies in an impressive electric blue
Australian saltwater crocodile skull: Crocodylus porosus
Estuary crocodile
With its CITES permit
35cm
Can only be sold in the European Union- Shengen Area
Dragon Stone
Septaria egg of Madagascar
Scyphocrinus fossil: Sea lilies - 420 million years.
Atlas of descriptive anatomy of the human body
Anatomy board
By Doctors Bonamy and Paul Broca
Draftsman: Emile BEAU
Published on July 1st 1854
Shark tooth fossil
Otodus Obliquus dating from the Ypresian: 50 million years ago
Dragon Stone
Septaria egg of Madagascar
It's huge!
