Gems and their properties.

Analcime in translation from buckwheat. - "weak, deprived of strength. This nickname he got for displaying insignificant electrical properties - weak electricity use in friction with heating. Minerals - leucite, sodalite, similar to Analtsim in their properties. Crystals of this mineral are found both transparent and opaque, but translucent. The color varies from colorless, smoky, white-yellow to green and red. It has a glass luster and an uneven shell break. Among its other properties is the increase in the volume of the stone during heating...

Ammolite (bison stone, seven-colored prosperity stone) is one of the brightest and most colorful gemstones. Its coloring is really unusual and ammolite stands out among other precious stones. Ammolite owes its name to the god Ammon, depicted with the head of a ram with spiral horns. Ammoliths began to be called ancient shells of shells, which lived in the seas of the Earth 300 million years ago. The ammonite sink is curled into a spiral, inside which the chambers are filled with gas. Ammolite is translated from the Greek word "lithos" means "stone"...

Amethyst is an unusual crystal, which is the most expensive kind of quartz valued since ancient times. For its special transparency and abundance of colors it is recognized as a gem of the second class. Purple mineral, due to its beauty and rarity is generally referred to the first class. Amethyst is a stone accessible to almost everyone. Unlike many other stones, the main indicator influencing the cost is not the size and size, but the degree of transparency and color saturation. Chameleon stone, which can change its color from dark purple to pink...

Ambligonite, montebrasite (gebronite) is a rather rare mineral, but even rarer are the stones that come to jewelers for processing. Amblygonite from buckwheat is oblique, named so because of its cleavage in different directions, and is lithium-aluminum-fluorinehydroxyl phosphate. The color of the mineral ranges from colorless, yellow and cyan to pale pink. There is a glass shine. Hardness about 6; density within: 3,0-3,1 g/cm3. It is not very popular with jewelers because it is difficult to find...

Amazonite is a kind of feldspar. Amazonites are formed in hydrothermal and pneumatolite formations. Natural stone usually has the form of large crystals, the length of which can reach 1.5 m. The chemical composition of potassium aluminosilicate amazonite with impurities of lead, cesium and rubidium. Amazonite is a stone symbolizing beauty and independence. Beautiful gray and bluish color, it carries peace and stability, strengthens relationships in the family and brings love and faith in the family...

Albit from the Latin word albus is white. It is sodium feldspar, the most common color of which is grey in various shades. There may also be completely colorless crystals. Albite has a glass luster, hardness: 6,0-6,5 and density - 2,62 g/cm3. Albite crystals are characterized: - transparent translucent structure. But there are types of stone with opaque structure, which are characterized by a glass shine; - A wide range of colours. Most often it is white and all shades of grey. Less often the mineral...

Diamond (from Greek adamas - indestructible or irresistible) is the most popular and most precious and expensive stone in the world. A brilliant diamond is a cut diamond, i.e. a diamond in a processed form. An ideal diamond is either transparent and colorless, or it is yellow, possibly green, or blue to blue, possibly smoky-brown, sometimes pink and lilac, milky-white and even gray and black. To date, diamonds have been successfully mimicking phianites and zircons. The relative hardness of a diamond...

The mineralogy of the angelite does not know. There is no angelite among the list of rocks, precious and semi-precious stones. The resounding name of the gem came into use only 30 years ago: the discovery of blue anhydrite deposits in Peru pushed marketers to create a new commodity trend. Angelite acquired its name thanks to the unusual coloring of stones in blue and purple tones. Angelita's second name also sounds very attractive - the stone of angels. The mineral has an unusual property, which...

Almandin is named after Alabanda (Asia Minor). The other is called carbuncle, Siriamese pomegranate, Alabandinine ruby, carfuquelstein, Alabandine vein, Siberian pomegranate, oriental pomegranate, Ceylon pomegranate, anthrax, beta and phaloum. The name of the stone itself is conditioned by the color in fiery red tones, similar to the hot coals. That's why Almandin is also called a "red pomegranate". Almandin is a representative of pomegranates, an iron-aluminum grenade. The color of this mineral can be very different: red, purple-red, cherry, orange, red-brown and even black...

Alexandrite was named in 1842 in name of Tsesarevitch Alexander (in 1855 Alexander II - Emperor of Russia) on the day he reached adulthood. There are other possible names for the stone - it is the Ural chrysoberyl, which is able to change the color. The Mohs hardness of Alexandrite 8.5 is one of the hardest minerals, with a density of 3.68 - 3.77 g/cm3. It is a transparent stone with a glass shine and a peculiarity of color change (reverse) from grayish blue to emerald green when daylight, and to purple and saturated purple-red when artificial lighting...

Alabaster by Greek alahastros, but no reliable translation. There is an assumption that the mineral is named after the city of Alabastron, located in Egypt. Other names of Alabaster and its subspecies are: alabaster, alabaster, luster, alabaster and Roman pearls. It is believed that the origin of the name has its roots in elegant small pear-shaped vessels for perfume, rubbing and incense (alabaster), which in ancient Greece were made of gypsum rock. Alabaster is a representative of gypsum and is its variety...

Actinolite is a rock-forming mineral belonging to the class of silicates and has an unusual color, which combines gray, brown and green shades. The name of the stone "actinolite" characterizes its radiance and glass shine, with Greek translates "actinos" - beam, "lithos" - stone. Officially, the mineral was scientifically substantiated in 1794. A few years later, actinolite varieties were studied and classified by color and structure: - Jade. The variety of the mineral for jewelry purposes has a viscous structure and a wide range of shades...