27^€

Raw smoky quartz from Madagascar

Weight 990 gr

CHARACTERISTICS
Weight	990 gr
Size	115x95x75 mm
Reference	211207116
Mineral	mineral Smoky quartz
Category	Rocks and minerals
Group	Raw rocks
Country	Madagascar

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Formula SiO₂] SMOKY QUARTZ
O	Oxygen	Other no metal	53.26%
Si	Silicon	Metalloids	46.74%
			100%
Smoky quartz is a variety of quartz, a mineral composed primarily of silicon dioxide, distinguished by its hue ranging from light brown to intense black. This unique coloration results from exposure to natural radiation present in the Earth's crust, which alters the oxidation state of the iron contained in the crystal. Smoky quartz is often found in geological formations such as pegmatites and hydrothermal veins, where it crystallizes under specific temperature and pressure conditions. In terms of physical properties, smoky quartz retains the characteristic hardness of quartz. Large, uniformly colored smoky quartz specimens are particularly sought after by collectors and mineral enthusiasts, adding aesthetic and scientific value to any collection. In the context of mineralogy and geology, smoky quartz is studied to understand the processes of mineral formation and the environmental conditions that influence their development. Notable deposits of smoky quartz are found in regions such as the Swiss Alps, Brazil, and the United States.

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Once the package is supported by the postal service, delivery times are those announced by the Post (letter followed or Colissimo followed). Parcel shipping from France.

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Our refund and return policy lasts 14 days. You can read the details on the "return and delivery" page.

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