The slate has a volcanic origin. The spectrum of its flowers is quite extensive. This breed can have green, yellow, brown, burgundy, gray, red, black shades.
There are two main independent classes of shales. These are groups of crystalline shales and clayey ones.
Crystalline shales are the regional-metamorphosed rocks of the average periods of metamorphism, they are characterized by a full-crystalline structure, an addition from dark-colored minerals, or feldspars and dark-colored crystals, or quartz and, again, dark-colored minerals.
Crystal shales are used as refractory raw materials and building materials.
Clayey shales are a clayey solid rock of an originally shale warehouse. They are greenish, dark gray, reddish, and even black.
Quite old geological deposits of this rock are clay, compacted under the influence of pressure and metamorphic processes. In our country, clay shale species are very valuable in technical terms.
Place of Birth. The main deposits of shales of our country are in the Crimea, the Urals, the Caucasus, regions that used to be called provinces - Podolskaya, Kherson, Ekaterinoslav, Olonets. Shale deposits are common in the US and Europe.
Raw clay shale is used as a slate, roofing, facing building material.
The healing and magical properties of oil shale
Medical properties . Modern healers believe that the use of slate in construction is due to its positive impact on the human body, and not only the easy accessibility of this breed and the ease of processing. When building houses using slate rocks, such dwellings turn into real health resorts for their owners. Properties of oil shale - the ability to remove stress and nervous states, favorably affect the mental and emotional state of the tenants. Shale rocks are able to normalize sleep, relieve such an ailment as insomnia, treat CNS disorders.
Magical properties . It is believed that the shale can act as a link between the Cosmos and the owner of the stone. Slate receives signals coming from the Universe and transmits them to the host, but for proper decoding of signs from higher forces it is necessary to be able to tune into slate. Specialists suggest the following method. It is necessary to wait for the full moon and at midnight to light two candles, put the mineral in front of you and look at it with concentrated concentration for about twenty minutes. Very soon, in the mind's eye, various images will appear - human figures, outlines of animals, images of plants and others. Refer to the slate with a request that he interpreted what you saw. Naturally, the mineral does not speak humanly, but it can send a dream, from which you will understand that you wanted to say the forces of the universe. In order that this dream really dreamed, the mineral should be wrapped in a silk violet scarf and put under a pillow. Such a ritual is conducted only with a full moon, and on other days it will not bring the desired result. In the event that the desired effect is not achieved for the first time, do not despair. The next full moon will certainly bring success, answers to interesting questions and decipher messages from higher forces.
Slate can patronize all the zodiacal constellations, except Capricorn and Aries. Best of all, he goes to contact those who were born under the sign of Cancer and Pisces.
Talismans and amulets . Shale rocks are considered talismans of people of creativity. He awakens the creative abilities of musicians, artists, writers. Slate brings new ideas, images, helps to reveal the slumbering sides of talent, but to bring deafening success to its owner and glorify his slate can not. You can apply slate to those who have paranormal abilities. Extrasensory, fortuneteller, clairvoyant, he helps to expand the boundaries of consciousness, to establish direct contact with the Cosmos, to understand the language of higher forces.
Application. Shale rocks are different in appearance and properties. The name "slate" unites a whole group of finishing stones.
For example, take this property of slate, as hardness. According to the Mohs scale, it achieves fluctuations from two to six points and corresponds, for example, to gypsum hardness (two points) and hardness of orthoclase (six points). The coefficient of water absorption is also characterized by a large spread. It ranges from one-hundredth to three percent. The only thing that unites all types of oil shale is the structure. With its strength, a layered texture is able to form an expressive textured surface, it is thanks to this property that the stone allows creating various types of interior.
Slate is sometimes called a natural slate. Of course, it is not necessary to confuse it with undulating asbestos-cement sheets, to which we are so accustomed in everyday life. Slate is a natural mineral that has been widely used since the Middle Ages. It was known to the ancient Romans.