A brightly coloured Shattuckite Specimen, the beautiful blue mineral. Some Plancheite in this rock too. Often Shattuckite has several colours through the stone. The fact that this one is mainly blue shows a high concentration of the Shattuckite itself in this stone. Good colour and size for holding in the hand. A great specimen for your mineral collection.
Bisbee, Arizona, USA.
5.2cm x 3.7cm x 3.1cm, 59g.
Shattuckite is a relatively rare copper silicate mineral. It was first discovered in the copper mines of Bisbee, Arizona, specifically the Shattuck Mine (hence the name). It is a secondary mineral that forms from the alteration of other secondary minerals. At the Shattuck Mine, it forms pseudomorphs after malachite. A pseudomorph is an atom by atom replacement of a crystal structure by another crystal structure, but with little alteration of the outward shape of the original crystal. Pseudomorph is Greek for “false shape”.