Raspberry quartzite stone is a rock. In other words, it consists of several minerals, the main of which is quartz. From him, in fact, the name came. Topaz, corundum, sericite, pyrophyllite, feldspar, talc are mixed with small amounts of quartz. Upon recrystallization of sandstones, this mixture is formed. Such a metamorphosis occurs under the influence of temperature or pressure.
Description
Raspberry quartzite, the reviews of which are indicated in the article below, occupies a separate place among a huge number of types of Karelian minerals. By its properties it is a unique stone. It is also called porphyry, or Shokhany porphyry (due to the outward resemblance to the porphyries of Iran). This means "royal stone."
The mineral combines a very high strength, wear resistance, hardness, as well as a beautiful appearance.
Raspberry quartzite, as demonstrated by medical studies, has healing properties. So, it stabilizes pressure, eliminates the ailments of weather-sensitive people, which were caused by changes in the weather, and also reduces pain in the joints and lower back.
In the bathhouse, Shoksha raspberry quartzite makes steam very light. This effect is achieved due to the low thermal conductivity and high density of the stone, which together gives excellent heat transfer over time.
Historically, this mineral was intended to decorate various majestic structures and buildings of St. Petersburg and Moscow. Perhaps this is the most solemn nugget from the Onega region.
Shokshinsky raspberry quartzite has always been very expensive, which means it was used to decorate especially significant architectural projects. According to its mineral composition, it is considered to be practically pure quartz (about 98%). It is an environmentally friendly material, almost does not have radioactivity, and this makes it possible to use it for facing offices and residential premises. Good resistance to high temperatures gives advantages when using the mineral in stoves for saunas and baths.
Chemical properties
Quartzite is obtained from sandstones consisting of large fragments of sedimentary origin bonded by natural cement. Some large fragments of sandstones are preserved during recrystallization. Therefore, quartzites often have an uneven structure. Crystals of mica and quartz are well traced in the mineral. The bonding of such particles of various sizes makes the stone very strong.
The strength characteristic is directly related to the composition of the stone, since quartz (its main component) on the Mohs scale has a hardness index of 7 points. At the same time, topazes, which also enter quartzites, occupy the eighth line in the scale. Corundums mixed with the rock are second only to diamonds, hardness champions, whose score is 10 points. In total, the hardness of quartzites is approximately 8 points.
In addition to high strength, raspberry quartzite, whose properties are described in this article, is temperature resistant. Its negative values do not affect the stone. Refractoriness is also amazing. The mineral begins to change only at 1770 ° C. Such resistance to heat makes the stone an excellent raw material for the construction of paired. Raspberry quartzite for a bath, reviews of which are always positive, makes it durable and safe. With active use, the life of the breed is about 200 years.
Stone does not care and high humidity. The mineral is not affected by various chemicals. In this case, the rock does not react with acids and alkalis. But raspberry quartzite is not in a hurry to give in to a person. Due to the increased hardness it is very difficult to process, which significantly increases the price of products from this breed. Seek it for special occasions. For example, Napoleon’s sarcophagus was made of this stone.
Place of Birth
This is a common stone. Among metamorphic rocks, it lies in long, large strata. These deposits are available in America, Africa, Russia and Eastern Europe. Thirty deposits have been recorded on the territory of our country. Their main concentration is in the Urals.
Raspberry quartzite
Raspberry-colored minerals are suitable for the accumulation of heat in stoves in baths and saunas. Their heat warms the air, ceiling, shelves and walls. Due to the high temperature of the minerals when watering, they form a thick, moist steam that warms the steam room.
Material
Mineral is a natural natural stone. It is characterized by a quartz homogeneous composition. It is often mined in Karelia. It was used to decorate significant architectural buildings (in St. Petersburg it was used to decorate St. Isaac's Cathedral, or rather, its altar, Kazan Cathedral, and the Winter Palace). This environmentally friendly and beautiful material with excellent physical and mechanical properties can be used for furnaces in baths and saunas.
Distinctive features of the mineral:
- has a small indicator of water absorption;
- possesses high durability;
- durable
- possesses low abrasion.
Application
Raspberry quartzite for a bath before laying in a wood or electric stove must be washed with water from dust, dried, and damaged and small stones need to be thrown out. When laying in the oven between minerals there should be a small space for free air circulation. In this case, the flat, largest stones need to be laid in the lower part, and small ones - in the upper.
The distance between the heating elements in electric furnaces when laying stones should remain unchanged. In this case, the heating elements of the sauna heater must be covered with minerals (the ideal distance is about 5 centimeters above the heating elements).
Healing properties
According to various medical studies, raspberry quartzite has different healing properties:
- eliminates ailments from changing weather;
- equalizes pressure;
- helps with pain;
- enhances male potency;
- improves blood composition.
The mineral is also credited with magical properties. It should be noted that for many it remains a mystery that has not yet been solved.
Stone in history
This is an amazing stone, which, by a fortunate coincidence, has become a symbol of wealth and luxury. According to the decree of the king, it was prescribed to be used in the nineteenth century exclusively for significant construction projects, therefore, as mentioned above, it can be seen in the decoration of the facades and walls of the Winter Palace, Kazan and St. Isaac's Cathedrals, Mikhailovsky Palace and the Moscow Kremlin.
In addition, it was used to create the tomb of Napoleon. The lid and base of the sarcophagus were carved from whole parts of raspberry quartzite. It was a gift from Nicholas I. The delivery of these minerals from Karelia to the Russian treasury cost a lot of money. But it should be noted that the monument to Nicholas I was also made of raspberry-colored quartzite.
Prices for this stone are still very high - from 10,000 rubles per ton.
Radioactivity
It should be noted that, according to the results of gamma spectroscopic studies, the effective specific activity of natural radionuclides in quartzite reaches 194 Bq / kg. This does not exceed an acceptable value for first class building materials.
These minerals are used for the production of dinas, as well as in metallurgy as a flux, as an acid-resistant material, and also as a decorative and building stone.
Raspberry quartzite for a bath: reviews
Reading reviews of this mineral, it can be concluded that those who often do not want to buy stones for a bath and are looking for a “durable” option choose it. This stone is able to survive its "brothers" in the bathhouse of all types. It is interesting that pink quartzite is liked by people who monitor health and appreciate the bath for its medicinal properties - according to many, the stone normalizes blood pressure, improves blood composition and circulation, eliminates lower back pain and muscle pain.
It is acquired by those who are very sensitive to weather changes, because, as they say, it makes it possible to get rid of this ailment. Of course, there are also negative reviews. However, for the most part they come down to a very high cost of stone. Not all bathhouse owners can afford it.