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 OSM62: Weight: 7.7kg - Height: 23/24cm 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
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
Entomological box
Butterflies: Asian Papilio
Papilio ulysses - Papilio blumei - Papilio maackii
Steampunk Flight of butterflies Napeocles Jucunda et Salamis Parhassus
Deer antler sculpture - Skeleton on pedestal
Material : Antler
Origin: Indonesia
Entomological frame - Scarab Goliathus meleagris female with spread wings
Dragon Stone
Septaria egg of Madagascar
It's huge!
Anatomic lithography: "Traité complet de l'Anatomie de l'Homme"
by Dr Bourgery and draughtsman Jacob
Volume 3 - 1844
barracuda in it's glass reliquary box - Sphyraena barracuda
Anatomical chart by Paulet and Sarazin
From the Traité d'anatomie topographique (Treatise on topographical anatomy)
Published in 1867-1870
Chromolithography
You buy 1 plate, not the whole set
Superb butterfly Ornithoptera Priamus Poseidon - Common Green Birdwing
From Papua New Guinea
NO SHIPPING
Entomological box hand-bound by an artisan bookbinder in Anjou
Sold with its CITES certificate - Can only be sold in the European Union
People living outside the European Union can't buy this species
Antique bezoar - Antipoison - Antidote
Once sold by the apothecary, bezoar, also known as gallstone, was reputed to have the same anti-poison properties as the legendary unicorn's horn, hence its excessively high price, also due to its great rarity.
An important piece in a cabinet of curiosities
Sold alone - Without stand, sold separately
Butterflies flying under an antique Napoleon III victorian glass dome
Under a 19th-century glass globe
Composition - Label of the City of Paris - Fabriqué à Paris 2026
Only available for pick-up in store at Paris, as the butterflies under the glass dome are too fragile to be shipped
Wall decoration of Pompeii - Herculaneum mosaics: Chromolithographic plate
By Wilhelm Zahn
Published between 1832 and 1849
YOU ARE PURCHASING 1 SINGLE BOARD - NOT THE BOOK OR THE SET OF BOARDS
Flight of Morpho menelaus butterflies under a Napoleon III-style cloche
Superb butterflies in an impressive electric blue
Syringe for diphtheria serum – Dr Roux method
Wooden box
Label from instrument manufacturer H. Hauptner in Berlin on the box and marking on the large syringe
Australian saltwater crocodile skull: Crocodylus porosus
Estuary crocodile
With its CITES permit
33cm
Can only be sold in the European Union- Shengen Area
Dragon Stone
Septaria egg of Madagascar
It's huge!
