Tourmaline Lumps from China - Quality Suppliers and Factory for Industrial, Decorative, and Functional Applications

Discover high-quality tourmaline lumps sourced directly from our China-based factory. These natural mineral pieces are carefully selected from premium tourmaline ore and processed into various usable sizes for a wide range of industrial, functional, decorative, and material-processing applications. Tourmaline, a complex crystalline borosilicate mineral, may contain essential elements such as silicon, aluminum, boron, iron, magnesium, sodium, potassium, calcium, lithium, and others, varying by mineral type and geological source.

Unlike tourmaline powder, our tourmaline lumps maintain a larger particle structure, making them easier to handle, store, wash, package, and utilize in filtration or decorative systems. They can be easily crushed into smaller granules, ground into powder, or used as mineral stones in filter bags, aquaculture systems, garden decoration, wellness product accessories, and mineral media packages. For manufacturers of tourmaline powder or ceramic balls, our selected tourmaline lumps serve as a vital upstream raw material.

WANCHENG MINERAL, a leading supplier in China, offers tourmaline lumps in various colors, sizes, and grades tailored to customer specifications. Popular types include black tourmaline lumps, dark gray stones, mixed-color pieces, and custom-graded mineral lumps. Available sizes range from 1-3 cm, 3-5 cm, 5-10 cm, or custom crushed pieces based on your application needs. The final grade is determined by factors such as purity, color, particle size, appearance, mineral content, and intended use.

For international buyers, maintaining consistent raw material quality is crucial. Variations in mineral source, color, impurity levels, moisture, and particle size can significantly impact downstream processing and market positioning. WANCHENG MINERAL is dedicated to providing selected raw materials, controlled grading, clean packaging, and comprehensive export documentation support, ensuring a stable supply for global distributors, water treatment media producers, ceramic ball factories, powder processors, and functional material manufacturers.

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Product Details

Silicon Dioxide (SiO2)

Main silicate component: 30% - 45%

Alumina (Al2O3)

Main alumina component: 25% - 38%

Boron Oxide (B2O3)

Typical tourmaline component: 7% - 11%

Chemical Component	Typical Content	Description
SiO2	30% - 45%	Main silicate component
Al2O3	25% - 38%	Main alumina component
B2O3	7% - 11%	Typical tourmaline component
Fe2O3	3% - 15%	Varies by color and type
MgO	1% - 10%	Varies by mineral source
Na2O + K2O	1% - 5%	Alkali components
CaO	0.5% - 4%	Minor component
Li2O	Trace to variable	Depends on tourmaline type
TiO2	Trace	Controlled impurity

Frequently Asked Questions

What is the primary chemical component of this material?

The primary component is Silicon Dioxide (SiO2), which represents 30% to 45% of the total composition and serves as the main silicate component.

How much Alumina (Al2O3) does this material typically contain?

Alumina (Al2O3) is the second most abundant component, typically ranging from 25% to 38% of the composition.

Why does the Iron Oxide (Fe2O3) content vary so widely?

The content of Iron Oxide (Fe2O3) ranges from 3% to 15% because it varies significantly depending on the specific color and mineral type of the tourmaline.

What are the typical alkali components present in this composition?

The alkali components consist of Sodium Oxide and Potassium Oxide (Na2O + K2O), which typically make up 1% to 5% of the chemical structure.

Are there any trace elements or impurities in this material?

Yes, Lithium Oxide (Li2O) is present in trace to variable amounts depending on the tourmaline type, and Titanium Dioxide (TiO2) is present as a controlled trace impurity.

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