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...