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
Grey-Black patinated marble base for ball or sphere
Base - support
Human skull - Replica by artist Jérôme Cavailles
Ref: Août 19
Anatomical plate: "L'Anatomie de L'Homme" by Dr Bourgery and draughtsman Jacob -1837/1843
Aïtos Protective ancestor totem from Timor (Indonesia) with crocodile effigy
Column statue from Indonesia
Mounted on base: 2.70m high
Ex-Voto heart in clay by Cuore di Argilla
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.
Painted insect
Stag beetle painted by Mandrin Valet
White and blue porcelain
Cours d'opérations de chirurgie, démontrées au Jardin Royal
Course of surgical operations, demonstrated in the Royal Garden
Published in 1751 in Paris, by d'Houry, sole printer and bookseller to Monseigneur le Duc d'Orléans
Fourth edition
Illustrated with numerous plates and engravings in the text, including the famous plate of Poor Malabou and her scrotal elephantiasis on page 112/113, which the author mentions on page 373.
Septaria Ball from Madagascar
Large Model
Ref: SBM GM-A
Flight of Butterflies Morpho didius under a Napoleon III style bell
Superb butterflies in an impressive electric blue
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
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
Entomological box
Butterflies: Asian Papilio
Papilio ulysses - Papilio blumei - Papilio maackii
Entomological frame
Scarab Goliathus meleagris male with spread wings
Dragon Stone
Septaria egg of Madagascar
