19

Biterminated rock crystal

Weight 65 gr
CHARACTERISTICS
Weight 65 gr
Size 75x25x20 mm
Reference 240313026
Mineral mineral Smoky quartz
Category Crystals and geodes
Group Free crystals
Country Country Madagascar Madagascar
Contractual photos showing the object you will receive when ordering. the photos were taken in order to obtain the most faithful possible rendering of the object.
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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 very common on Earth. Its brown to black color is due to the natural irradiation of radioactive minerals present in the surrounding rock, which causes the alteration of the crystal structures of Quartz. This irradiation induces the presence of defects in the crystal structure, which absorb certain wavelengths of light, thus giving Smoky Quartz its distinctive color. Smoky Quartz is commonly found as crystals of varying sizes, ranging from small specimens to large geodes. It is mainly used in jewelry and decoration, but also in certain industrial fields for its optical and electronic properties.

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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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