Chrysoberyl belongs to the spinel family in mineralogy. It is an oxide mineral containing beryllium and aluminum, and contains a small amount of trace elements such as iron, titanium and chromium. It belongs to the orthorhombic crystal system, the crystal is short column, plate or pseudo-hexagonal ring, with glass luster, transparent to translucent, hardness of […]
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The discoloration effect of alexandrite is the result of its selective absorption of light waves. Its transparent crystal can pass red and green light. Portanto, under different wavelength light sources, when the light source (such as incandescent lamp) contains more red components, it will appear red; when the light source (Such as fluorescent lamps or […]
There is a story circulating in the West: In the 18th century, a hot summer in Amsterdam, the Netherlands, a few children were playing in the sun with some colorful stones brought back from overseas by voyagers, and found that these stones appeared in the sun. A strange phenomenon, they asked their parents to come […]
Although the Chinese aquamarine has the word “sea” before “safira”, it is not a sapphire, so it is not literal. The phrase should be “sea blue gem”, the color is like sea water, it is light blue; the small aquamarine, the color is extremely light, like the sea water held up: almost colorless and transparent. […]
Olivine is a magnesium iron silicate mineral and belongs to the orthorhombic crystal system. The crystals are short columnar. Complete crystals are rare. Most of them are irregular round granular aggregates. They have glass luster, transparent to translucent, and hardness of 6.5-7.0. Olivine is a kind of self-colored gemstone, which is green due to iron […]
Topaz is a kind of magnesium aluminate mineral and belongs to the orthorhombic crystal system. Most of the crystals are in the shape of orthorhombic columns. There are also granular and massive aggregates with glass luster, transparency and a hardness of 8. Topaz is rich in color, with yellowish brown being the most common, vermelho […]
The first series is Almandine, including Almandine, Spessartine and Spessartine. The English name of Almandine is Almandine, which comes from Latin, meaning “charcoal powder”. Because of its high content of iron, it is mostly brownish red or brownish-black-red. It can emit a dark red like a fire when charcoal is burning, and some translucent ones […]
Crystal is a colorless and transparent quartz crystal mineral. It belongs to the trigonal crystal system. The crystal is usually a cone composed of a hexagonal double cone and a hexagonal column. It is also common to appear transparent in irregular or beautiful crystal clusters, with glass luster, E uma dureza de 7. The main […]
Jadeite is a commercial name. Na verdade, it is a kind of rock composed mainly of jadeite. The main component of jadeite is sodium aluminosilicate, which belongs to the monoclinic crystal system. Single crystals are rare, usually granular or fibrous microcrystalline compact aggregates, with glass luster to grease luster, transparent to opaque, and hardness of […]
Feldspar is an aluminosilicate mineral with potassium, sodium and calcium as the main chemical components. Feldspar has glass luster and pearl luster, transparent to translucent, usually colorless, branco, light brown, green and blue Green is very rare in the feldspar family that can achieve good gem quality. Only feldspars with transparent crystals, bright colors and […]