• Località: Malawi
• Peso: 2,8g
• Dimensioni: 1,8 x 1,3 x 0,5 cm
• DESCRIZIONE DETTAGLIATA

Cabochon di calcedonio – Malawi Calcedonio da Malawi is a mineral belonging to the Quarzo group. It is characterized by a fine microcrystalline structure, which gives it a typical luster. It most commonly has a light blue, gray-blue to whitish color, which may be slightly cloudy or partially translucent. The coloration is influenced by trace impurities and the internal structure of the mineral. cabochon and its use in jewelry cabochon is a type of cut without facets, featuring a smooth, rounded and Lucidato surface. This method enhances the color, translucency and internal structure of the stone. Calcedonio cabochons are widely used in jewelry, especially for making anelli, pendants, earrings or bracelets. With a hardness of approximately 6.5–7 on the Mohs scale, Calcedonio is suitable for everyday wear. Formation of Calcedonio Calcedonio forms through low-temperature hydrothermal processes, where silica precipitates da solutions into rock cavities. It typically occurs as a filling of cavities, veins or fractures. Its structure consists of very fine Quarzo fibers arranged in a dense, compact mass. Calcedonio deposits Malawi is among the known sources of quality Calcedonio, especially material suitable for jewelry processing. Besides Malawi, Calcedonio can also be found in Altro parts of the world, such as Brasile, India, Madagascar, Namibia and the USA. Individual localities differ in color, quality and structure of the material. Properties and characteristics Calcedonio is a compact and durable mineral with a conchoidal fracture and no cleavage. It has a translucent to opaque appearance, and when Lucidato, its surface achieves a high luster. Thanks to its structure, it is easy to work with and stable, making it suitable for the production of cabochons and Altro decorative objects.