Your cart
There are no more items in your cart
Superb Dioptase from the Democratic Republic of the Congo (old collection)
Dimensions: 3.07 inches x 1.38 inches x H: 1.65 inches (78mm x 35mm x H: 42mm).
Weight with the base: 3.17 oz (90g).
Dioptase is a magnificent mineral, recognizable by its emerald-green color. Often compared to emerald for its color, it is distinguished by its well-formed crystals.
Dioptase is a hydrated copper silicate (CuSiO₂(OH)₂) that forms mainly in areas of copper deposits. It often appears in rock cavities in association with other copper minerals such as malachite or azurite. It is particularly common in arid zones, where the circulation of underground water, combined with copper deposits, favors the formation of this mineral.
Color: Emerald green to bluish green.
Hardness: 5 on the Mohs scale.
Density: Approx. 3.3 to 3.4 g/cm³.
See all our available Dioptases pieces in our catalogue.
Why choose Le Monde Minéral?
Your reference for collector minerals, backed by proven expertise.
At Le Monde Minéral, we are committed to offering quality natural minerals, carefully selected for enthusiasts and collectors. Our specialist, who has been identifying and selecting minerals for over 30 years, brings his experience to a coherent and reliable offering.
With our e-commerce experience since 2013, we have developed solid know-how in online sales, allowing us to provide serious, fast and professional order processing.
Regularly present at mineral shows in the PACA region (Mandelieu, Antibes, Fréjus…), we maintain direct contact with enthusiasts and collectors, in order to offer a varied and regularly renewed choice of collector minerals.
