The rich gem resources in the world are mainly concentrated in Africa, เอเชีย, America and Oceania.
1. แอฟริกา
The African continent is rich in gem resources and is known as the “World Gem Warehouse”. It is rich in diamonds, ทับทิม, ไพลิน, golden emeralds, มรกต, สมเด็จ, อเมทิสต์, peridot and turquoise, among which diamonds are the most famous.
(l) Southern Africa. South Africa, Botswana, Namibia, Angola and other countries are important diamond producing countries. In the world, ยิ่งกว่า 2,000 diamonds weighing more than 100ct have been discovered, 95% of which are produced in South Africa, such as the famous diamonds “Cullinan (3 10106CT)”, “Noble and Noble (999. 3CT)” และอื่น ๆ. The world’s largest diamond placer is in Namibia, with high quality, with a gemstone grade of 95:,5%. Zaire and Botswana have become world-class powers in the development of diamond minerals, with an annual output of diamonds of more than 10 million ct.
In addition to diamonds, other gems such as garnet and amethyst are also well-known in the world.
(2) Zambia and Zimbabwe. Zambia, Zimbabwe are listed as the second and third largest producers of emeralds in the world, respectively. Zambia is also one of the most important malachite producing areas in the world; Zimbabwe has also discovered and mined gold emerald and amethyst mines in recent years.
(3) Tanzania and Kenya. Tanzania and Kenya produce gem varieties such as rubies, ไพลิน, tanzanites, tourmalines and magnesia garnets.
(4) Madagascar. Madagascar is an important producer of African gemstones, such as crystals, บุษราคัม, tourmalines and so on.
2. America
America has many important large gem mines in the world.
(1) บราซิล. Brazil is an important gem producer in the world. มันมี 70% ของพลอยสีฟ้าของโลก, 90% ของบุษราคัม, and so% of tourmaline. Brazil is the main producer of beryl, chrysoberyl and crystal, and also produces gems such as opal, โกเมน, agate and andalusite.
(2) Colombia. Colombia is a world-famous producer of high-quality emeralds and the largest producer of emeralds.
(3) แคนาดา, ฯลฯ. Canada is rich in nephrite, rhodonite, อเมทิสต์, สมเด็จ, tourmaline and apatite, and the current diamond production is also increasing; Mexico produces opal, agate and amethyst; the United States not only produces nephrite, jadeite, tourmaline and other gems , New Mexico is also the world’s largest turquoise producing area.