It is also known as Elephant Jasper, Elephant Skin Jasper, Cobra Stone, Calligraphy Stone, Script Stone, and probably a few others I haven't heard!
But we like Coquina Jasper best because it is more accurate. Coquina is the Spanish word for shellfish or cockle.
Coquina Jasper is a consolidated sedimentary rock of biochemical origin, mainly composed of the mineral calcite, and some phosphate, in the form of seashells or coral. It may include the shells of mollusks, trilobites, brachiopods and other invertebrates.
Coquina Jasper forms near the shore, where wave action is vigorous and sorts the sediments well.
Like most jaspers Coquina Jasper cabochons take a great polish, but the hardness can vary and the stone can have some very tiny surface pits. We do specialize in hand picked high grade lapidary material, so surface flaws are limited.