Mineral Products Testing (Metallic and Non-Metallic)

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Granite Testing

As an important non-metallic mineral product, granite is a high-end natural stone widely used in global construction, decoration, and infrastructure construction. China has abundant granite resources and a long history of quarrying and processing. In recent years, driven by the demand for green building, customized decoration, and high-end engineering, the granite industry is continuously transforming towards high quality and high added value.

Leveraging advanced testing technology and industry experience, we provide services including compositional analysis to help your product highlight its performance and aesthetic value in the market.

Testing Products

Mica

Testing Items

Particle Size Distribution

Sand Content Determination

Magnetic Separator Residue (Magnetics Content)

Loose Bulk Density

Moisture (Water) Content

Undersize on 7.1 mm Sieve, Undersize on 2.0 mm Sieve

Thickness, Foreign Inclusions (Contamination)

Non-Mica Minerals >0.5 mm and Weathered Broken Mica Flakes, Black Spotted Mica Flakes, Yellow-White Rust Stained Mica Flakes

Loss on Ignition (LOI)

Whiteness (Brightness)

Rectangular Area (of specified pieces)

Radial Length of Marginal Non-Mica Minerals

Non-Mica Minerals within Reentrant Angles

Stains / Blemishes

Surface Characteristics

Testing Standards

Mica (Types: Dry-ground mica powder, muscovite mica, wet-ground mica powder, delaminated mica, mica powder for welding electrodes, industrial raw mica): JC/T 595, JC/T 815, JC/T 596, JC/T 585, JC/T 427, JC/T 49

Service Advantages

Nearly ten years of specialized focus on granite rock component testing and standards research.

Possesses leading high-precision testing services for key indicators such as chemical composition. A long-term service provider for national key projects, high-end real estate, and export trading companies. Recognized as a preferred technical partner for leading granite enterprises in East, South, and North China.