According to the classification, the crust consists mainly of minerals and rocks. Minerals include solid formations, which most often have a crystalline structure, uniform in composition. Rocks are solid, mixed massifs or mineral mixtures.
Many beautiful
rocks and minerals are used by jewelers for the manufacture of various jewelry, decorative elements, etc. They are relatively arbitrarily divided into three large groups - ornamental stones, precious and semiprecious.
The second and third groups in this article will not be considered in detail. We will only say that gems or, as they are also called, gems are expensive jewelry minerals. Their high cost is explained mainly by the fact that they are quite rare in nature and have some unique qualities that go out of the ordinary. Semi-precious - the concept is rather arbitrary. In fact, this is a large group combining not very valuable gems and ornamental rocks of very high quality.
Ornamental stone can be either transparent or opaque. At the same time, it should stand out in color, pattern, texture or have some other feature. Precious stones are distinguished from precious ones by a greater prevalence in nature, less “nobility” and other similar factors. Unlike gems, this is most often not a mineral, namely a rock.
Ornamental stones include, for example, stones such as malachite, serpentine, jasper, turquoise, lapis lazuli, etc. All of them stand out from the bulk of the rocks. The ornamental
stone malachite can have a wide variety of “drawings” and “ornaments”, the elements of which combine a bright, very saturated green color of a variety of colors. The coil also has a nice
green color, but less bright.
The color of lapis lazuli can already be determined from its name - bright blue, the same as blue turquoise. Separately, you can highlight such an ornamental stone as jasper. It is quite widespread in nature, and not all of its varieties are used in jewelry. This is a rock, which includes several different both in chemical composition and in color and texture of minerals.
The most beautiful and valuable species of all jasper experts rightly consider Orsk. Most often, its color varies from dark cherry to pale pink. In addition, minor inclusions of other colors are often present. The minerals that make up a piece of Orsk jasper, beautiful in itself, sometimes also form bizarre drawings that are surprisingly realistic resembling natural landscapes. Therefore, this ornamental stone is also called "landscape".
In addition to those considered, any other beautiful rock or mineral can be used to make jewelry. Ornamental stone is a very broad concept, which includes a huge variety of solid formations of the earth's crust.
Who does not agree to decorate themselves or decorate their home with objects made from natural, original and cute material. Therefore, jewelry, for the manufacture of which an ornamental stone was used, has always been used, is used in our time and will be very popular in the future.