MAC BLACK (Uruguayan black gold stone) comes from Uruguay, the "diamond country" 13000 kilometers away. MAC BLACK, Uruguayan granite, is known as "the purest black on earth", introverted, calm and somewhat mysterious.

Cause of formation
0.13 billion years ago, dense volcanic eruptions on the South American continent witnessed the fracture of the stratum. The volcanic lava near the Paraná Plateau did not eject from the ground but slowly cooled underground, deriving Uruguay's mineralogy, petrology and tectonics Geological features. Long geological age and accidental geological environment have formed MAC BLACK (granite) with extremely high purity. Good hardness and fine particles ensure the constant quality of MAC BLACK mineral stock.

Mining history
This kind of stone has been mined and used in Uruguay for more than 100 years. In the United States, Europe, Brazil, Argentina and other countries, black granite has been used in a wide range.

Characteristics of Uruguayan granite
1. The unique mirror appearance, hardness and fine texture ensure the constant characteristics of the product.
2. Large-size blocks and few impurities increase the product value of Uruguayan granite.
3. Due to its hardness, Uruguayan granite cannot be painted, so it is one of the few 100% natural materials in the world.
4. The geological structure of Uruguay has the characteristics of mineralogy, petrology and tectonics, and can be used as high-quality ornamental stones.

Sensory Description of Material Properties
MAC BLACK has hard texture and uniform density. Compared with traditional granite, it has improved wear resistance by 50%, low expansion coefficient and good thermal stability. Polishing, flat as mirror; sandblasting, fine texture. Among the black stone species that have been mined on a large scale in the world, MAC BLACK is called "King of black stones" because it has no sweeping flowers, no cracks, and no stone bile ".

Objective description of material properties
The "Laboratory of Material Tests" test by the official laboratory of the Italian Ministry of Public Works.
This laboratory tests were made by the Laboratory of Material Tests of the Autonomous Province of Bolzano, officially recognized by the Ministry of Public Works of Italia.

1. Thermal stability: MAC BLACK is a kind of black granite with extraordinary quality and low expansion coefficient. It is also a very stable thermal change material. It has strong resistance and low degree of hygroscopicity.
THERMAL STABILITY: Is an exceptional quality of the Black Granite, with low coefficient of expansion. Is a very stable material to the thermal variation.
2. Material strength: As MAC BLACK black granite has a uniform structure, very fine hard crystals and dense textured grains, compared with traditional granite, its wear resistance is increased by 50%, and its bending strength is 25 Mpa.
MATERIAL STRENGHT: Due to its homogeneous structure of very fine, hard crystals and compact texture grains, the Uruguayan Black Granite is 50 % more resistant to wear if it is compared to conventional granites, and has a flexural strength of 25 Mpa.
3. Material hardness: Due to the heterogeneity of the structure and uniform hardness (90 a 105 Shore A), it can prevent wear and ensure long-term flatness.
Also, due to de heterogeneity of the structure and the uniform hardness (90 a 105 Shore A), prevents premature wear and ensures the accuracy if flatness for a long time
4. Chemical properties: Uruguay granite absorbs 6 times less humidity than traditional granite due to its structural composition. Its unique characteristics are suitable for different occasions, such as precision instruments, buildings, etc.
CHEMICAL BEHAVIOR: Due to its structural formation, the Uruguayan Black Granite absorbs six times less humidity when compared to traditional granites; unique characteristics to be used in different functions (yprecision instruments, construction, etc.

Uruguay Flower Black Gold Stone Tea Plate
Uruguayan black gold stone has high hardness, good density, no deformation when cold and heat, low absorption of humidity, and extreme black color. These characteristics make it have unique advantages when used on tea trays. Compared with ordinary bamboo and stone tea sets, it has the advantages of no cracking, no fading, no peculiar smell, no tea dirt, long service life, no scratches and no magnetization. At present, only one company in China uses this material to design tea trays. Wushi Culture and Creative Co., Ltd., located in Xiamen, has won high praise from the design circles at home and abroad in terms of practical performance and design appearance. Using the tea tray designed by Uruguay's black gold stone, it has won the 2019 European Product Design Award-Gold Award, the 2018 China Design Red Star Award, the 2018 Italian SILVER A'DESIGN AWARD, the 2019 Korean K-DESIGN International Design Award, the French INNODESIGN PRIZE International Innovative Design Award, the 2019 ELLE DECORATION International Design Award, the CGD Contemporary Good Design Gold Award, etc. Uruguayan black gold stone is superior to the characteristics of generally excavated black gold stone for its "purest black" and "extremely pure stone. The application of this new material has great prospects in the domestic market.