The composition of diamonds is carbon, while the composition of gems varies according to different kinds.

What does the gem mean?

Diamonds, rubies, sapphires, emeralds, nephrite, jadeite, chrysoberyl, topaz, opal, red tourmaline, etc. , are collectively called gems.

The composition of diamond is carbon, and its hardness is 10. Diamonds are the highest hardness and unparalleled luster on the earth. Clean and colorless diamonds are the most popular, but other varieties-from yellow and brown to green, blue, pink, red, black and gray-are also available. Because the carbon atoms that make up a diamond are evenly arranged, its crystal is extremely perfect.

Ruby and sapphire, also known as corundum, are mainly composed of alumina, and their colors are different because of the different contents of chromium, iron and titanium. ?

Emerald is mainly composed of beryllium aluminum silicate, and the beautiful green color is mainly due to chromium and vanadium. ?

The main component of nephrite is calcium magnesium iron silicate, which is a fibrous amphibole crystal aggregate. ?

Emerald is mainly composed of sodium silicate and aluminum, which occurs in metamorphic rocks and is alluvial pebbles and boulders. Weathering forms a brown surface.

Expansive material:

Gemstones refer to stones or mineral inlays that can meet the requirements of jewelry after grinding and polishing. This precious ore is bright in color and high in hardness, and will not change under the action of atmosphere and chemicals. Can be used as instrument bearings, abrasives, decorations, etc. It also refers to precious stones.

Gem is the most beautiful and valuable stone among rocks. They are bright in color, crystal in texture, brilliant in luster, hard and durable, and rare.

Natural mineral crystals that can be used for jewelry and other purposes, such as diamonds, crystals, emeralds, rubies, sapphires and emeralds (metamorphic rocks, cat's eyes). There are also a few natural single mineral aggregates, such as chalcedony and opal. There are also a few organic substances, such as amber, pearls, corals, coal powder, ivory, etc., which are also included in the broad sense of gems.

Jade is also the beauty of stone. But it also has bright colors, hard and delicate texture, and beautiful luster after polishing.

References:

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