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 OSM55: Weight: 4.1kg - Height: 20cm
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
Grey-Black patinated marble base for ball or sphere
Base - support
Butterfly - Natural History color plate
Entomology
You buy 1 plate, not the whole set
De l'Homme et de la Femme (Of Man and Woman)
By M. de Lignac - Volume 3
Anatomy of procreation - 1779
Entomological composition of beetles
27 specimens make up this picture
Black entomological box with gold fillet, hand-crafted by an bookbinder craftsman in Anjou
Crucifix crab - Giant crab on wooden pedestal
Charybdis feriata
Origin: Philippines
Entomological shattering at La Beauchêne under glass case
Chrysochroa buqueti - the jewel beetle
The red speckled jewel beetle
By La Thanatothèque
Australian saltwater crocodile skull: Crocodylus porosus
Estuary crocodile
With its CITES permit
31cm
Can only be sold in the European Union- Shengen Area
Red chalk drawing- Anatomical drawing
Anatomical study
Drawn by Eugène de Montchoisy in Saint-Brieuc in November 1840
These are not reproductions but original period drawings in red chalk.
You are purchasing one plate, not the entire set of plates
Dragon Stone
Septaria egg of Madagascar
Anatomical plate: "L'Anatomie de L'Homme" by Dr Bourgery and draughtsman Jacob -1837/1843
Australian saltwater crocodile skull: Crocodylus porosus
Estuary crocodile
With its CITES permit
30cm
Can only be sold in the European Union- Shengen Area
Large Naturalist Magnifier
Species: Morpho Didius butterfly of Peru
19th century pharmacy display blue jar
Blown glass
Herbalist's or Pharmacist's jar
Antique blank label of the XVIIIth century
Natural Red Coral
Tubipora Musica
Sold with a CITES permit valid for the European Union - Schengen area
Cannot be sold outside the European Union
Boule de Nancy - Genuine Mars Vulnerary Ball - Steel Ball
This iron-containing ball was once considered a miracle cure for many ailments and injuries.
The Boule de Nancy is sold individually in a small antique drugstore box
Unavailable today
Dragon Stone
Septaria egg of Madagascar
