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 OSM48: 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
Entomological composition of beetles
27 specimens make up this picture
Black entomological box with gold fillet, hand-crafted by an bookbinder craftsman in Anjou
Ball of Lapis-Lazuli from Afghanistan
Ref: Y94
Shark tooth fossil
Otodus Obliquus dating from the Ypresian: 50 million years ago
Goliathus meleagris male beetle with spread wings under dome
Species: Congo Goliathus meleagris from Congo
Megalodon tooth fossil - Otodus megalodon
11cm
North Carolina USA
Fossil shark tooth
Shark tooth fossil
Otodus Obliquus dating from the Ypresian: 50 million years ago
Shark tooth fossil
Otodus Obliquus dating from the Ypresian: 50 million years ago
Anatomic lithography: "Traité complet de l'Anatomie de l'Homme"
by Dr Bourgery and draughtsman Jacob
1866
Skeleton of an Indonesian Eonycteris spelaea bat - Cave nectar bat
Box bound by an bookbinder craftsman
All skeletons are differents
Please note, there is an accident, it's missing a bone from one of it's wings, (a phalanx)
Entomological box
Butterflies: Asian Papilio
Papilio ulysses - Papilio blumei - Papilio maackii
Memento Mori - Fan - Ref B02
Sculpture on buffalo bone
Pharmacopée royale galénique et chymique - 1753
Antique and Illustrated Pharmacopoeia
By Moyse CHARAS
This book contains all the plants, minerals and animals that went to make up the remedies used in those days. Some of them are quite surprising to our modern eyes.
Antique surgical board
From Benjamin Bell's Complete Course in Surgery, published in 1796
The Skeleton Virgin
Large candle: 40cm high
In soy wax
Dragon Stone
Septaria egg of Madagascar
