Stone Trivia: Understanding the world of stone around you

1. What are the types of stone?

There are six main types of stone: granite, marble, limestone, quartzite, slate and other stone.

2. Marble is mainly composed of which minerals?

Marble is a metamorphic rock of carbonate rock, mainly composed of calcite, limestone, serpentine and dolomite, of which calcium carbonate accounts for more than 50%, as well as magnesium carbonate, calcium oxide, manganese oxide and silica.

3. Does marble have radiation?

Theoretically all substances have radiation, but the radiation value of marble is very low. More than 99% of the marble on the market are in line with national standards, can be used with confidence. National regulations are not mandatory testing of marble.

4. How to identify whether the stone is stained?

Dyed stone color is bright but not natural.

The level of staining penetration can be seen at the break of the plate.

Coated machine oil to increase the gloss of the back of the stone has a sense of oil stains.

Waxed stone baked with fire, the wax surface will melt, revealing the original face.

5. Purchase stone need to pay attention to what issues?

Look at the surface whether there are missing corners, cracks, color spots, the color difference should not be too large.

Measure the thickness deviation is less than 0.5mm, flatness is less than 0.2mm.

Listen to the sound, crisp proof of better material.

Test water, drip water on the side of the stone, water absorption is slow on behalf of the material is tight.

6.What is artificial stone?

Artificial stone is made of non-natural mixtures, such as resin, cement, glass beads, aluminum powder, etc. plus crushed stone binder. Generally unsaturated polyester resin mixed with fillers, pigments, add initiator, made after certain processing procedures.

7. What is limestone?

Limestone is short for chert, a carbonate rock with calcite as the main component. Sometimes contains yellow, light dolomite, clay minerals and crushed minerals, gray, gray, gray, black, red, maroon and other colors, hardness is generally not large, and dilute hydrochloric acid reacts violently.

8. What is water washing surface?

Water gun flushing stone surface, the use of water high-speed kinetic energy to wash away some of the softer parts of the texture, the formation of natural uneven surface effect. Sometimes in order to pursue other bumpy effect, will add abrasives in the water, such as river sand or diamond sand.

9. What is a flamed surface?

Heating the stone surface with a flame, so that the stone crystal expansion burst off, forming a very colorful imitation pear skin surface of the special process.

10. Why does the stone alkali phenomenon?

Alkali phenomenon in the stone using wet paste installation appears more. In fact, the alkaline material is mostly from the bonding material. If the dry hanging construction process will not appear alkali, the same, dry hanging process will not appear water spots.