Archive for the ‘stones’ Category

Have You Seen Malachite Beauty?

Posted: October 16, 2013 in Materiel, stones

Malachite Point To Chalcopyrite

Malachite is a copper carbonate minerals (basic copper carbonate), the chemical composition of Cu2 (OH) 2CO3.Malachite is looking chalcopyrite mineralization iconic rock alteration, geological prospecting in the wild when they see malachite (Rolling Stone or native), I know there must be near the presence of brass orebody in the vicinity of the work in more detail, to find the native ore.

Malachite Generation

Malachite generated mainly copper minerals in the rocks of oxidation patina, the whole rock dyed green, and thus, geologists named it malachite.As early as 4000 years ago, the ancient Egyptians mined between Suez and the Sinai mines, the use of malachite as a children’s talisman, get rid of evil spirits.In Germany, it is avoided that a person wearing malachite death.China thirteenth century BC, Yin has malachite stone hairpin crafts.

Malachite Nature

Malachite with bright bluish green, is the most attractive decorative mineral materials.Although the name has a “stone”, but almost no stone malachite hard, solid features.Its toughness is poor, very fragile, so it is easily broken, fear of collisions.So, malachite jewelry design needs with superb technology as the basis, otherwise, then a beautiful style, but you can not make the stone to change according to your wishes.The origin of malachite Russia, Romania, Brazil and so on.Chinese malachite origin mainly in Hubei.

river gravel in brief

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River gravel is a natural stone, from experienced after the crust movement million years ago by the ancient riverbed uplift of sand mountains, experiencing the flash floods hit,handling continuous extrusion, friction. Tens of thousands of years of vicissitudes in the evolution process, which has a wave hit the water movement, gravel collision friction lost irregular edges, and sediment was buried along the silent millions of years.

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river gravel application

River gravel, silicate minerals a hard texture, abrasion resistance, chemical stability, natural river egg ore after crushing, sand, screening and a series of processing into the river sand and river sand egg, egg is an important industrial mineral raw material. Widely used in the engineering field of water conservancy and hydropower, highway, highway, railway, passenger dedicated line, bridge, airport runway, municipal engineering, high-rise building mechanism of sand production and stone plastic. HeLuanShi sand has been widely used as concrete aggregate. Pebble is rich in resources, acquisition cost is relatively low, the application of high value.

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river gravelproduction process

The material is used for the coarse crushing jaw crusher work, production into coarse material by the conveyor to the finely machine for second fine broken, after the stone into the vibrating finely screen gives two stones, satisfy the sand gravel sand mechanism of feed particle size of sand making machine, the other part of regurgitation feeding into fine broken. System sand machine stones are made into a part of sand, the sand washing machine is made after finished cleaning sand, the other part broken again into the sand making.

more information from http://zenithcrusher.com/

Granite On Your Side

Posted: September 25, 2013 in Materiel, stones

granite in brief

Granite is a common type of intrusive, felsic, igneous rock which is granular and phaneritic in texture. This rock consists mainly of quartz, mica, and feldspar. Occasionally some individual crystals are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic texture is sometimes known as a porphyry. Granites can be pink to gray in color, depending on their chemistry and mineralogy. By definition, granite is an igneous rock with at least 20% quartz by volume. Granite is usually found in the continental plates of the Earth’s crust.

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granite mining process

The quality of Granite is dependent on the way that the granite is mined or extracted. There are three ways of extracting Granite which create varying levels of quality. Each mine is very different and our belief is that the way we extract our Granite ranks as the best given the quality we look for.

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blast extraction

Blast extraction happens when a hole is drilled into the exposed rock surface and a charge is laid with the blast following. From this the miners would select the largest boulders, which are then cut into smaller more manageable granite slabs. Although this method is extremely cheap, the blast doesn’t select the best parts of the granite and during the blast covers the stone with small cracks. These small cracks affect the strength of the granite slabs and therefore, the quality declines.

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air bag extraction

Air Bag extraction is similar to Blast extraction, using Air rather than detonation to increase pressure on the rock. In this method, the Air Bag is inserted into the drilled hole and inflated. This method stops the appearance of small cracks. More importantly though it also allows more accurate prediction of where the rock will fracture.

stone-cut extraction

Stone-Cut extraction delivers the highest quality product, yet due to the type of machinery involved can also be the extraction that is highest cost. This method removes the danger of small cracks and is what we believe is the best way of mining Granite for the best quality.

more information from http://zenithcrusher.com/