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 OSM52: Weight: 5kg - Height: 19/20cm
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
Bearded dragon - Pogona vitticeps - Bearded agama
Museum jar - Wet specimen
Anatomical articulated skinning
Paper-cardboard articulated mannequin
Human skeleton
The Skeleton Virgin
Large candle: 40cm high
In soy wax
Memento Mori sculpted from a deck of cards - Poker
Size M
BLUE color
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
Leaves butterflies under oval glass bell - Kallima Inachus
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!
Aïtos Protective ancestor totem from Timor (Indonesia) with crocodile effigy
Column statue from Indonesia
Mounted on base: 2.70m high
Engraved horse skull
Papuan handicraft
Origin: West Papua
Entomological box
Butterflies: Asian Papilio
Papilio ulysses - Papilio blumei - Papilio maackii
Diaphanization of a cat foetus - Felis catus (Not full term)
Biological preparation
The aim of diaphanization is to render the tissues transparent through a chemical process, and specific dyes are used to highlight the skeleton.
You can see the bones through the skin!
Not a protected species
Naturalist Magnifier
Morpho Didius butterfly from Peru
Madagascar sawyer ammonite - Cleoniceras fern ammonite
Cleoniceras fern ammonite
100 million year old fossil
Naturalist Magnifier: caligo atreus
Dragon Stone
Septaria egg of Madagascar
