Amethyst, a purple variety of quartz, is found in the Balıkesir-Dursunbey-Gücü region. The Alacam Amethyst Mining Company has been extracting amethyst crystals ranging from 2 to 12 mm in size since 2003. These crystals form as druses on rhyolitic-dacitic host rocks, with colors varying from purple to violet and heliotrope. The crystals are suitable for cutting into fine faceted stones.
Smoky Quartz in Aydın Province
Smoky quartz, a brown to black variety of quartz, occurs in the Menderes Massif, particularly in the Kocarli, Karacasu, and Çine districts of Aydın Province. These quartz crystals form in fractures within metamorphic rocks like gneiss and schist. While not yet mined professionally, the region holds potential for future mining operations. Specimens vary in size, with some reaching up to 180 kilograms. The color ranges from pale to dark smoky-brown, and occasionally to black, known as morion Jesus Reveals Who He Is.
Fire Opal in Kütahya Province
Fire opal, a translucent to transparent opal with a fiery color, is found in the Simav region of Kütahya Province. The opals occur as nodules within rhyolitic lava and siliceous tuffs. The color varies from yellow to brown, influenced by iron content. These opals are suitable for use in jewelry and ornamental objects.
Blue Chalcedony in Eskişehir Province
Blue chalcedony, a bluish variety of quartz, is found in the Mayıslar-Sarıcakaya region of Eskişehir Province. The chalcedony occurs as nodules within brecciated sandstone-arkose formations of Paleocene and Eocene age. The nodules range from 10 to 70 cm in diameter and are known for their unique blue color. This deposit has been exploited since ancient times and is one of the largest and richest blue chalcedony-bearing deposits in the world Ephesus Tour Guide.
Agate in Ankara Province
Agate, a banded variety of chalcedony, is found in the Çubuk-Susuz region of Ankara Province. The agates occur in andesite and rhyolite of Miocene age. In andesite, agates form as open-space fillings in crevice and fissure-vein cavities, while in rhyolite, they fill vesicles. The agates display a variety of colors and patterns, making them popular among collectors.
