Quartz
Pristine Clarity. Durable Versatility
Didwaniya Group supplies premium-grade quartz for industrial, commercial and decorative applications. Our quartz is carefully sourced, processed, and quality-tested to meet the purity and physical-specification needs of glassmakers, foundries, electronics manufacturers, and architects worldwide.
Quartz is a hard, crystalline mineral composed of silicon dioxide (SiO₂) and is one of the most abundant and useful minerals in the Earth’s crust. It forms well-defined prismatic crystals and occurs in a wide range of colors and habits — from clear, gem-quality crystals to massive, milky or colored varieties.
Natural quartz commonly contains a very high proportion of silica (SiO₂); typical crystals often exceed 99.5% SiO₂, while specially processed high-purity quartz used for semiconductor, solar and high-tech applications can reach 99.99% (or higher) after refinement.
Characteristics
Chemical formula: SiO₂.
Hardness (Mohs): 7 — hard, resistant to abrasion.
Crystal system: α-quartz is trigonal at room temperature (transforms to hexagonal at higher temperature).
Specific gravity: ≈ 2.60–2.65 (varies slightly with impurities).
Color / appearance: Colorless (rock crystal), milky, smoky, amethyst (purple), rose (pink), citrine (yellow/orange), and other varieties depending on trace impurities.
Typical SiO₂ (natural): most natural crystals >99.5% SiO₂; processed high-purity quartz powders/sands can be ≥99.99% for demanding industries.
Fracture / tenacity: Conchoidal fracture; brittle.
Applications
Quartz is exceptionally versatile: it is a primary raw material for glass and specialty ceramics, a source of silica for foundry sands and refractories, a feedstock for silicon and polysilicon production, and an essential material in the manufacture of electronics (piezoelectric devices, oscillators), optical components, and photovoltaic (solar) equipment. Quartz is also used as decorative stone and engineered countertops when cut and polished.
Storage Condition
Store quartz in clean, dry, well-ventilated warehouses to avoid surface contamination. Keep materials off the ground on pallets or racks, covered to prevent dust ingress, and in conditions of low humidity (preferably <65%) and stable temperatures to reduce handling contamination. Segregate different grades (e.g., construction sand, glass-grade, high-purity) and label shipments clearly for traceability.