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 OSM171: Weight: 1.9kg - Height: 14cm
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
"Tarnier" Forceps - COLLIN: french manufacturer of surgical instruments
Flame gorgon - Red Whip Coral on pedestal - Ellisella grandis from Indonesia
Madagascar sawyer ammonite - Cleoniceras fern ammonite
Cleoniceras fern ammonite
100 million year old fossil
Madagascar sawyer ammonite - Cleoniceras fern ammonite
Cleoniceras fern ammonite
100 million year old fossil
Antique surgical board
From Benjamin Bell's Complete Course in Surgery, published in 1796
Madagascar sawyer ammonite - Cleoniceras fern ammonite
Cleoniceras fern ammonite
100 million year old fossil
Dragon Stone
Septaria egg of Madagascar
It's huge!
Entomological box
Butterflies: Asian Papilio
Papilio ulysses - Papilio blumei - Papilio maackii
Entomological frame - Scarab Goliathus meleagris female with spread wings
Septaria Ball from Madagascar
Large Model
Ref: SBM GM-B
19th century portable pharmacy - Wooden apothecary cabinet
Travel pharmacy
Dictionnaire Universel des Drogues Simples
Universal dictionnary of Simple Drugs
By Nicolas Lemery
Antique illustrated pharmacopoeia - 1760
Shark tooth fossil
Otodus Obliquus dating from the Ypresian: 50 million years ago
Skeleton of Java Kingfisher under a glass bell
Halcyon cyanoventris
Engraved horse skull
Papuan handicraft
Origin: West Papua
Dragon Stone
Septaria egg of Madagascar
