Size:      8x4mm

some specimens may exhibit a greenish

the Prehnite with its pale blue color and rounded formations

8 grams / 2

We only have one so don't miss out

Ammolite Gem | Ammonite | Fancy Cabochon | 34x21mm 42.2ct | Canada | SO24 NWA 4293 Size: 8x4mmAmmolite is an opal like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America. It is made of the fossilized shells of ammonites, which in turn are composed primarily of aragonite, the same mineral contained in nacre, with a microstructure inherited from the shell. It is one of few biogenic gemstones; others include amber and pearl. In 1981, the same year commercial mining of ammolite began, ammolite was