Search results for keyword: egypt
hornblende rock
Introduction
Alabaster is a type of sedimentary rock mostly comprised of calcium carbonate. It is also known as onyx-marble, alabastrite, or egyptian alabaster. Alabaster is commonly used for ornamental carvings, jewelry, and various other decorative items. Alabaster is a type of soft rock and is......
1046 
Oliver
opposite sex stone
Unakite
Unakite is a popular semi-precious gemstone that is composed largely of pink feldspar, green epidote and quartz. This type of stone is found worldwide in places such as the United States, South Africa, Brazil, India, Norway and Australia.
Unakite is believed to be a powerful healing stone......
brown yttrium niobium ore
Hematite is a mineral that’s been used for centuries in a variety of applications, from jewelry to construction. Though it’s often used in jewelry and decoration, it’s most commonly found in the form of what’s known as “hematite iron ore.” Hematite iron ore is a sedimentary rock composed of ......
Chrysoberyl
What is the Gemstone Emerald?
Emeralds are one of the most popular and renowned precious gems in the world. They are a variety of the mineral beryl, colored green by trace amounts of chromium and sometimes vanadium. Originally, emeralds were found in egypt and considered a symbol of fertility and......
Rare Metal Materials and Engineering
A Short History on Rare Metal Materials & Engineering
The use of rare metals dates back to the dawn of civilization. Ancient egyptians used gold as a medium of exchange as early as 2000BC, while Sumerians were mining silver over 4000 years ago. During ancient times, and throughout early modern Eu......
Sodium Chlorocarbonate
Chlorobenzene is an industrial chemical used in the manufacture of pharmaceuticals, fragrances, herbicides and rubber products. One of its major uses is in the manufacture of insecticides. Chlorobenzene has also been used as a solvent in paints and as an extractant in leather tanning operations.
......
gold copper alloy
Brass is an alloy made from a combination of copper and zinc in varying proportions. The proportions of the two elements determine the specific type of brass and its properties. The most common type of brass is 65% copper and 35% zinc, which is known as malleable brass. Other variations may includ......
silver copper alloy
Introduction
Brass is a type of alloy made of copper and zinc. It is typically of a yellowish color, and is relatively more bendable and more machinable than pure copper. For this reason, brass is typically used for various types of decorative and machine-intensive tasks, such as plumbing and ele......
brass
Bronze is a metal created many centuries ago, and it is still used for a variety of purposes today.
Bronze is an alloy of copper and tin. Though other components are sometimes added to create desired effects, the two most common metal combinations to create bronze are copper and tin. Bronze is a ......
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