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
display for ball or egg (small)
Material: Resin material
Wooden base for ball or sphere - Base - support
Grey-Black patinated marble base for ball or sphere
Base - support
Anatomie de L'Homme - circa 1845
Volume 4 Atlas: Apparatus of nutrition - Angelology - Organs of circulation and respiration
Followed by his Atlas in black and white
By Dr. Bourgery and illustrator Jacob
Celestine Egg - Mineral WITH base
Origin: Madagascar
Be careful to protect it from water, which alters it: it dissolves or cracks on contact!
Sold with base
Anatomie de L'Homme - 1831
Anatomy of Man
Volume 2 with its black and white Atlas - 99 lithography
By Dr Bourgery and the illustrator Jacob
Engraved swordfish rostrum from Borneo - Indonesia
XL Size - Dimensions with base: H108cm
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
Clastic Mannequin - Dr. Auzoux's anatomical skinned
Australian saltwater crocodile skull: Crocodylus porosus
Estuary crocodile
With its CITES permit
31cm
Can only be sold in the European Union- Shengen Area
Entomological box
Composition with South American butterflies
Morpho and heliconius
Double skeleton
Sculpture on deer antlers
Unique piece
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
The Skull and its Octopus
The skull is made of tamarind wood and the octopus is carved from deer antler, an assembly of carved pieces of deer antler. Articulated jaws and deer antler teeth.
Origin: Indonesia
Sold WITHOUT glass bell
Hardnose shark jaw - Carcharhinus macloti
Approximately 33cm high and 35cm wide
Pre-CITES Convention Capture - Can only be sold in the European Union - Schengen space
It will be provided a document proving the anteriority of the catch pre-CITES convention
Entomological composition of beetles
28 specimens make up this picture
Black entomological box: 26x39cm
Flight of Morpho menelaus butterflies under a Napoleon III-style cloche
Superb butterflies in an impressive electric blue
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
Anatomical plate: "L'Anatomie de L'Homme" by Dr Bourgery and draughtsman Jacob -1837/1843
Dragon Stone
Septaria egg of Madagascar
