The color of garnet is rich, and there are various colors other than blue. Color is an important factor in determining the value of garnet. Demantoid and green series of garnets are higher in value than other colors of garnets; except for green, orange-yellow spessartine, red magnesia and dark red almandine have successively lower values. […]
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1. The basic characteristics of moonstone and sunstone Moonstone is usually colorless and white, but it can also be pink, pomerančový, žluť, zelený, hnědý, and gray. Relativní hustota je 2.58, tvrdost je 6-7, usually no pleochroism, the refractive index is 1.518-1.526, it can have cat’s eye and moonlight effect. The moonlight effect is […]
1. crystal The crystal is colorless and transparent. The silica composition contains no impurities. The crystals are mostly produced as single columnar crystals or crystal clusters. There are many crystals weighing from a few kilograms to more than ten kilograms, and not even hundreds of kilograms or even more than a ton. Vzácný. Však, velký […]
Qingtian stone is named after it was produced in Shankou Village, Qingtian County, Zhejiang Province. Qingtian stone is rich in color, beautiful in luster, fine in texture, moderate in hardness and strong in engraving. It is not only the best printing material, but also the most ideal craft carving stone. Qingtian stone carvings are crafted […]
The composition of pearl contains some organic matter, and contains many kinds of trace elements and more than ten kinds of amino acids. Pearls have special functions such as calming the nerves, clearing the liver and improving eyesight, beautifying and regenerating muscles. Medicines, beverages and daily cosmetics made from pearls are deeply loved by people. […]
Korál roste v konkrétním mořském prostředí. Dendritický agregát tvořený vápníkem vylučovaným korálovým hmyzem se nazývá “hasič”. Je uveden jako sedm pokladů buddhismu vedle zlata, stříbro, perla, achát, Amber a barevná glazura. Mezi nimi, Red Coral je nejcennější, regarded as a treasure in the […]
Amber is an organic compound, amorphous, irregular agglomerates, resin luster, transparent to semitransparent, and the color is mostly yellow to brown, light red to light white, sometimes light green or light blue. Magnify and check to see bubbles, flow lines, insect or animal and plant fragments, and other organic and inorganic inclusions. Good insulator, such […]
Nephrite is dominated by tremolite. Bílý nefrit, safír, and blue-white jade can be distinguished by color. White jade can be called white jade. Its names include suet white, pear white, ivory white, atd., especially suet white with fine texture and moist luster. The sapphire is dark green and gray-green in color, uniform in color and […]
Opal is one of the more popular gems. Its mineral name is opal, and the English name is “Opál”, which means opal in transliteration. As the birthday stone in October, it is widely circulated among the people. It symbolizes happiness and peace. Its moving part lies in its gorgeous color. Opal’s “oheň” is composed of […]
Common wood alexandrites are: (1) Tygří oko. Tiger’s eye stone can have a wavy fiber structure, yellow or brown to reddish brown. When polished into a convex gemstone, it is named because of its play-of-color, jako “tiger eye”. 2) Eagle Eye Stone. It is blue, modrozelená, blue-gray. The eagle’s eye stone has clear fibers. When […]