• Dioptase on Quartz
  • Dioptase on Quartz
  • Dioptase on Quartz
Quartz and Agate

Dioptase on Quartz

$4,500.00   €3,805  £3,280.00 approx.  

This specimen is priced in US dollars, all other prices are approximate.

ID: CC19265
Copper mineralisation occurs along a 3 km escarpment close to the village of Mindouli in the Pool Department of the Republic of Congo.  A suit of over twenty mineral species is found here and although a small and relatively obscure occurrence, is the type locality for Plancheite.  Dioptase is rare here yet forms good crystals of up to a little over 1 cm long on this magnificent example.  Elongated, emerald green Dioptase crystals with a bright glassy lustre are aesthetically scattered over a flat bed of colourless Quartz crystals, each typically 3 to 5 mm broad and tinted light grey by the underlying hard Quartz matrix.  With low magnification, e.g., a x5 loupe, many micro-spherules of powder-sky-blue Plancheite can be seen scatted over the Quartz.  An excellent small cabinet Dioptase on Quartz with minor Plancheite from Mindouli.

Details

Dimensions
5.1 × 9.8 × 2.6 cm
Categories
Quartz and Agate, Silicates
Locality
Mindouli District, Pool Department, Republic of Congo (Brazzaville)

Minerals on Specimen

Minerals on specimen
Dioptase, Quartz

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