Dioptase - Mineral Specimen shards Pieces like this are especially

Pieces like this are especially appealing because they show the natural mineral structure that finished gemstones no longer reveal

Each kit gives you a hands-on look at how crystals grow and makes a great activity for kids

• Rib cuffs

comes from trace amounts of manganese

such as the wheels and large cones

Dioptase - Mineral Specimen shards Pieces like this are especiallyMined from: Renville Mine, Pool Department, Republic of the Congo Description: This dioptase specimen shows dense coverage of deep emerald to blue green crystals across a rough, iron stained matrix. The crystals are sharp and glassy, forming tight clusters with a mix of small prismatic and blocky forms that catch light well despite the darker saturation. Areas of earthy brown host rock and lighter mineral patches break up the surface, giving the piece