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RM3578   Primary malachite and chrysocolla
Cu₂(CO₃)(OH)₂
  -  5. Carbonides and nitrates

A very aesthetic specimen composed of very lustrous, dark green primary malachite crystals. The crystals have a triangular to rhombohedral appearance due to the way they have intergrown and are brighter green at the edges. It is quite rare to find primary malachite crystals, especially with well-defined crystals, and this mine is known for producing these malachites. The specimen was labeled "libethenite" (sic), and of course we analyzed it (analysis RM308), although a drop of HCl would have ruled out the phosphate, but...

Size: 7.2 x 5.2 x 2.6 cm.
Main crystal: 6 mm.
Analyzed specimen with report
130 €