This mineral is a new combination of Calcite and Aragonite only discovered in the last couple of years in Pakistan.
Its name comes from the colour, which is reminiscent of the tranquil blue, seafoamy shorelines of the Caribbean but it was mined by hand and delivered by the miner on the back of his camel for postage!
Natural indents with form lines appear on the surface, as pictured.
This sphere measures 7.3cm in diameter approx.