69^€

Calcite and Amethyst from Brazil

Weight 490 gr

CHARACTERISTICS
Weight	490 gr
Size	140x105x35 mm
Reference	240813431
Mineral	variety of mineral Amethyst
Category	Crystals and geodes
Group	Druses
Country	Brazil

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Formula SiO₂] AMETHYST
O	Oxygen	Other no metal	53.26%
Si	Silicon	Metalloids	46.74%
			100%
Amethyst is a variety of quartz, a mineral composed of silicon dioxide, what distinguishes it from other varieties of quartz is its characteristic purple color, which can vary from pale to dark. This coloring is due to the presence of iron impurities in the crystalline structure of quartz. Amethyst usually forms in cavities in volcanic or metamorphic rocks, where hydrothermal solutions rich in silica and iron circulate. These solutions gradually deposit quartz on the walls of these cavities, thus forming amethyst crystals. The most beautiful crystals are often found in geodes, spherical cavities lined with crystals. Amethyst is a relatively hard mineral, which gives it good scratch resistance. It is also transparent to translucent and often has a vitreous luster. Due to its beauty and hardness, amethyst is highly valued in jewelry. It is used to make jewelry such as rings, pendants, and necklaces. Amethyst is also used in decoration, particularly for the creation of art objects or sculptures.

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Your orders are usually shipped the day of the order and at the latest after 2 working days.

Delivery delay
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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