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
Wooden base for ball or sphere - Base - support
Grey-Black patinated marble base for ball or sphere
Base - support
Anatomical chart by Ludovic Hirschfeld drawn by Léveillé
From Traité et iconographie du système nerveux et des organes des sens de l'homme avec leur mode de préparation
Published in 1866
Lithography
You buy 1 plate, not the whole set
Entomological transparent frame
Species: Morpho Didius butterfly from Peru
Flame gorgon - Red Whip Coral on pedestal - Ellisella grandis from Indonesia
Dragon Stone
Septaria egg of Madagascar
Crow on branch - Corvus corone
Perfect in a cabinet of curiosities, a masterpiece!
Diaphanization of Common mouse - Mus musculus
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 flesh!
Natural Red Coral
Tubipora Musica
Sold with a CITES permit valid for the European Union - Schengen area
Cannot be sold outside the European Union
Engraved horse skull
Papuan handicraft
Origin: West Papua
Flight of butterflies: Heliconius family under glass dome
Scyphocrinus fossil: Sea lilies - 420 million years.
Crucifix crab - Giant crab on wooden pedestal
Charybdis feriata
Origin: Philippines
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
Madagascar sawyer ammonite - Cleoniceras fern ammonite
Cleoniceras fern ammonite
100 million year old fossil
168: Hydrangea arborescens Annabelle
Real framed and calligraphed Herbarium
Crow on pedestal - Corvus corone
Perfect in a cabinet of curiosities, a masterpiece!
Note that the wooden crosspiece is not exactly centred on the resin base
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
Dragon Stone
Septaria egg of Madagascar
It's huge!
