{"product_id":"zonal-amethyst-cabochons-namibia-zak15","title":"Zoned Amethyst Cabochon - Namibia - ZAK15","description":"\u003cul\u003e\n\u003cli\u003eLocation: Namibia\u003c\/li\u003e\n\u003cli\u003eWeight: 9g\u003c\/li\u003e\n\u003cli\u003eDimensions: 4.3 x 2.1 x 0.5 cm\u003c\/li\u003e\n\u003cli\u003eDETAILED DESCRIPTION\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"0\" data-end=\"61\"\u003eZonal Amethyst – quartz with characteristic banded structure\u003c\/p\u003e\n\u003cp data-start=\"63\" data-end=\"455\"\u003eZonal amethyst is a variety of amethyst characterized by alternating color zones within a single crystal. Typical is the combination of purple, transparent, or milky bands, which form due to variations in conditions during crystal growth. These zones can be subtle or highly contrasting, creating a characteristic banded pattern.\u003c\/p\u003e\n\u003cp data-start=\"457\" data-end=\"478\"\u003eAppearance and processing\u003c\/p\u003e\n\u003cp data-start=\"480\" data-end=\"796\"\u003eZonal amethyst is often cut into cabochons or faceted stones; the type of cut influences the final appearance of the pattern. In cabochons, the soft color transitions stand out, while faceted stones emphasize the contrast between the different zones. Each piece is unique due to its internal structure.\u003c\/p\u003e\n\u003cp data-start=\"798\" data-end=\"829\"\u003eFormation of zonal amethyst\u003c\/p\u003e\n\u003cp data-start=\"831\" data-end=\"1227\"\u003eAmethyst forms through crystallization from mineral solutions within rock cavities. The zonal structure develops due to fluctuations in chemical conditions, particularly iron content and radiation intensity during crystal growth. These changes are recorded in the mineral structure as individual color layers.\u003c\/p\u003e\n\u003cp data-start=\"1229\" data-end=\"1251\"\u003eAmethyst deposits\u003c\/p\u003e\n\u003cp data-start=\"1253\" data-end=\"1458\"\u003eZonal amethysts are found in many locations worldwide, especially in Brazil, Uruguay, Namibia, Russia, and Madagascar. Each location produces material with different types of banding and color intensity.\u003c\/p\u003e\n\u003cp data-start=\"1460\" data-end=\"1487\"\u003eProperties and characteristics\u003c\/p\u003e\n\u003cp data-start=\"1489\" data-end=\"1784\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eZonal amethyst has a hardness of 7 on the Mohs scale, is transparent to translucent, and has a vitreous luster. Its typical characteristic is the internal zoning, which influences both its appearance and how it is processed. Due to its durability, it is suitable for use in jewelry.\u003c\/p\u003e","brand":"PeltramMinerals","offers":[{"title":"Default Title","offer_id":58028228673861,"sku":"ZAK15","price":29.09,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0881\/1659\/2965\/files\/74577_zonal-amethyst-cabochons---namibia.jpg?v=1779381797","url":"https:\/\/moldavite.it\/en\/products\/zonal-amethyst-cabochons-namibia-zak15","provider":"Moldavite.it","version":"1.0","type":"link"}