JGS2 Quartz Glass: Professional-Grade Natural Fused Silica

JGS2 quartz glass is a professional-grade natural fused silica produced by refining high-purity natural quartz crystal in a controlled gas atmosphere. This process yields a transparent material with excellent ultraviolet-to-infrared transmission and trace metal impurities only in the parts-per-million range — ideal for general UV optical and high-temperature applications.

Key Characteristics

• Hydroxyl Content: Exhibits an absorption peak near 100 nm, linked to its hydroxyl (OH) content typically ranging from 200 – 2730 ppm.
• Structure: Displays a natural striped and granular internal structure.
• Optical Performance: Excellent transmission performance from 220 nm to 2500 nm wavelength band.
• Purity: Trace metallic impurities at ppm level, maintaining reliable optical stability.

Applications

JGS2 offers a practical balance of optical clarity, durability, and cost-effectiveness, making it the material of choice for UV-to-near-IR applications across scientific and industrial sectors.

• Condenser optics
• High-temperature and high-pressure viewing components
• Optical flats and calibration plates
• Microscope slides and precision panels
• Sight glasses and viewing windows
• Pressed quartz components and panels

Equivalent Materials

The following materials are recognised as equivalent to JGS2 synthetic quartz silica, sharing similar purity, transmission range, and performance characteristics:

• Heraeus: Homasil 1, 2 and 3
• Dynasil: 1000, 4000, 5000 and 6000

These brands provide comparable optical and mechanical properties, ensuring consistency and reliability across different supply chains and manufacturing preferences.

John Moncrieff Ltd offers machining, polishing, and forming services for JGS2 and equivalent natural quartz grades, supporting both research optics and industrial high-temperature applications.