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 OSM46: Weight: 7.1kg - Height: 23cm average 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
Cours de botanique élémentaire Elementary Botany Course
By Henri Jean Antoine Rodet - Professor at the Imperial Veterinary School of Lyon
Antique book from 1863 - Second edition
Illustrated with numerous black and white figures interspersed throughout the text
Antique surgical board
From Benjamin Bell's Complete Course in Surgery, published in 1796
Crucifix crab - Giant crab on wooden pedestal
Charybdis feriata
Origin: Philippines
Clastic Mannequin - Dr. Auzoux's anatomical skinned
Ex-Voto heart in clay by Cuore di Argilla - Zodiac
Italy crafts
A contemporary reinterpretation of the traditional ex-voto, originally a votive offering made to a god in request of a grace or in thanks for a grace obtained after a vow.
There remains Sagittarius
Madagascar sawyer ammonite - Cleoniceras fern ammonite
Cleoniceras fern ammonite
100 million year old fossil
Large Marlin rostrum - Size XL
Dimensions: between 58cm and 60cm with base
All the rostrums are unique and different in terms of size, size, color etc
Pictures of illustrations
Human skull - Replica by artist Jérôme Cavailles
Ref: Août 19
Man - Anatomical chart that can be disassembled
By Fernand Nathan Editeur publisher
Coloured chart with movable, cut-out and superimposed leaves
There are defects on the superimposed boards; the outer board, which was the man's torso, is missing, as are the lungs, which were above the heart. The left hand is missing, the arm being torn.
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!
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
Butterfly - Natural History color plate
Entomology
You buy 1 plate, not the whole set
Entomological frame - Scarab Goliathus meleagris female with spread wings
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
Dragon Stone
Septaria egg of Madagascar
It's huge!
Herbalist's or Pharmacist's jar
Antique blank label of the XVIIIth century
Dragon Stone
Septaria egg of Madagascar
It's huge!
