Description

Andradite is a calcium-iron silicate mineral belonging to the garnet group, known for its distinctive crystal structure and physical properties. This industrial mineral is valued for its high hardness, chemical inertness, and specific gravity, making it a critical raw material in several high-performance applications. Key industries that utilize Andradite CAS NO 15078-96-3 include abrasives manufacturing, waterjet cutting, filtration media, and as a specialized component in ceramics and refractories.

Application

• Abrasive Media: Used in the manufacture of coated abrasives (sandpaper, grinding wheels) and as loose abrasive grains for blasting and polishing due to its exceptional hardness and sharp fracture.
• Waterjet Cutting Garnet: Serves as the primary cutting medium in high-pressure waterjet systems for precision cutting of metals, stone, glass, and composites.
• Filtration Media: Employed as a high-density bed media in multi-media filters for water treatment and industrial process filtration.
• Refractory and Ceramic Additive: Incorporated into refractory linings and specialty ceramics to enhance thermal stability, abrasion resistance, and density.
• Semiconductor Wafer Polishing: Used in slurry formulations for the chemical-mechanical planarization (CMP) of silicon wafers.
• Decorative and Industrial Coatings: Provides texture, durability, and anti-slip properties in epoxy flooring and protective coatings.
• Geological Research and Standards: Utilized as a reference mineral in geological studies and for calibrating analytical equipment.

Basic Information

Product Name	Andradite
CAS No.	15078-96-3
Molecular Formula	Ca3Fe2(SiO4)3
Molecular Weight	508.18 g/mol
Synonyms	Andradite Garnet; Calcium Iron Silicate; Iron Garnet; Melanite (Ti-bearing variety); Demantoid (gem variety); Topazolite (yellow-green variety); 3CaO·Fe2O3·3SiO2
EINECS	239-146-1

Quality Control

Our Andradite products are processed and graded to meet stringent industrial specifications. Quality is assured through a battery of tests including particle size distribution (PSD) analysis, specific gravity measurement, chemical composition via X-ray fluorescence (XRF), and hardness testing. We provide Certificates of Analysis (COA) with each batch, detailing key parameters to ensure consistency and performance for your specific application.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong acids. The product is not hygroscopic under normal conditions but should be protected from excessive moisture to prevent caking.

Specification

Item	Specification
Appearance	Granular particles, color varies (brown, green, black, yellow)
Chemical Composition (Typical)	Ca3Fe2(SiO4)3 ≥ 90%
Specific Gravity	3.8 - 3.9 g/cm³
Mohs Hardness	6.5 - 7.5
Particle Size (Mesh)	Customized (e.g., 80/120, 120/230, 30/60, 60/80)
Moisture Content	≤ 0.5%
Acid Solubility	≤ 5%
Magnetic Susceptibility	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.