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Types of Copper Minerals
Copper Minerals
Copper minerals are those minerals containing the element copper. They are usually found in very small quantities in the Earth’s crust and are largely untapped for commercial use. The name copper is derived from the Greek word for “coppered”, which is kyprios.
Copper is an ess......
1026 
Sophie
simple brass
The Properties, History, and Uses of Brass
Brass is a metal alloy made up of copper and zinc. It is used to make metal objects and is known for its golden color. It is commonly used in art, architecture, coins, jewelry, and metalwork. Its name is derived from the bronze-like color it takes on whe......
Downdraft kiln
The Dao Yan Kiln (also known as Dao Yang Kiln) is a large kiln in the city of Yangjiang, Guangdong Province, China. Built in the late Ming Dynasty (1368-1644), the Dao Yan Kiln is one of the oldest and most famous ceramic kilns in China.
The Dao Yan Kiln is renowned for its unique and highly deco......
Determination of sulfur content in carbon materials
Determination of sulfur content in carbon materials
Abstract
Sulfur content plays a very important role in carbon materials, as it affects their quality, performance, and even safety. In this paper, we introduce several traditional methods for the determination of sulfur content in carbon materi......
Impurities in Diamond
Introduction
Diamonds are widely known for their beauty and rarity, however not all diamonds are created equal. When diamonds are being formed naturally in the mantle, they commonly contain a variety of impurities and flaws. These impurities and flaws that occur in natural diamonds are what give ......
cordierite
Azurite
Azurite is one of the most widely used semi-precious gemstones in the world, found in a variety of shades from blue to green. It is well-known for its unique color and ability to polish to a high shine.
Azurite was originally discovered in France in the early 1800s and quickly gained popu......
Burnt Gems
The Appeal of Opal Jewelry
Opal jewelry has become increasingly popular over the last few years, due in no small part to its mesmerizingly beautiful play of colors. The fiery opal, known for its intense blue, red and greens, is the most popular and can command high prices. The opal truly reveals ......
Magnesium chrome spinel
Magnesium-chromium spinel is an artificial spinel crystallized in the form of many colors. It has a high refractive index, low dispersion, complete cleavage, and good transparency. Its main components are magnesium and chromium.
Introduction:
Magnesium-chromium spinel is a man-made spinel crysta......
Zircon nozzle
Garnet is one of the most popular semi-precious stones. It is known for its deep red color, but some rare forms of this beautiful stone come in a variety of colors. Garnet is found in many places, including Africa, India, the Czech Republic, and the United States.
The water mouth garnet is one of......
Corundum breathable plug
Jade permeable plug is an innovative technological product, which is made of high quality jade stone. It is not only beautiful and artistic, but also has the effect of regulating energy flow and promoting balance between the internal and external Qi fields.
The jade permeable plug is easy to inst......
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