Overview
Muscovite mica is the clear, ruby-tinted natural mica that splits into thin, flexible, transparent sheets with very high dielectric strength. WedgeMICA natural muscovite is ruby muscovite from the Giridih mica belt of Jharkhand, India, graded by visual quality and cut into blocks, splittings, strips, discs, washers and shields. Thin natural sheet mica has a dielectric strength of 40–80 kV/mm as film and stays transparent for sight-glass duty.
WedgeMICA mica insulation catalogue 2026 (PDF, 6 pages, 1.3 MB) — Natural muscovite mica grades, technical data, sizes and ordering codes for the full range of mica boards, sheets, rolls, tubes, gaskets and machined parts.
Natural muscovite mica products
| SKU | Product | Details |
|---|---|---|
| WMN-BLK | Mica blocks | Ruby and green-spotted, grades No. 4 / No. 5, random thickness |
| WMN-STR | Splittings and strips | Muscovite strips for capacitors, heaters and insulation |
| WMN-DSC | Discs and washers | Die-cut or lathe-cut, qualities V1–V6 |
| WMN-FAB | Fabricated mica | 60–100 µm cut pieces, e.g. 13×18, 18×22, 20×24, 22×29, 24×39 mm |
| WMN-GGS | Gauge-glass shields | For boiler water-level gauges, lengths 340, 360 mm and to order |
| WMN-TRW | Transistor washers and corrugated mica | To drawing |
Quality grading: natural muscovite is supplied in visual qualities V1 (clearest) to V6, added as an SKU suffix — for example WMN-DSC-V2. Specify quality, size and thickness, or send a drawing or sample.
Muscovite mica properties
| Property | Muscovite | Phlogopite | Unit |
|---|---|---|---|
| Maximum operating temperature | 500–600 | 800–900 | °C |
| Dielectric strength (25–75 µm film) | 40–80 | 30–60 | kV/mm |
| Loss tangent | 0.1–0.4 × 10⁻³ | 1–5 × 10⁻³ | — |
| Volume resistivity at 25 °C | 4×10¹³ – 2×10¹⁷ | 10¹² – 10¹⁴ | Ω·cm |
Typical literature values for natural mica, from the WedgeMICA catalogue. Muscovite CAS 12001-26-2.
Muscovite mica price
WedgeMICA natural muscovite mica products are quoted on request. The price depends on the mica type (muscovite, phlogopite or synthetic), thickness, size or drawing, quantity and any test requirement, so every enquiry gets a firm quotation in ₹ INR and $ USD with the technical data sheet attached. MOQ and lead time are confirmed with each quotation.
Quote the Wedge SKU to speed things up: family-grade-thickness (mm)-size. Size codes: 1006 = 1000 × 600 mm, 1012 = 1000 × 1200 mm, 1024 = 1000 × 2400 mm, CUT = cut to drawing.
Applications
- Boilers — gauge-glass shields protecting water-level gauge glass (WMN-GGS).
- Capacitors and electronics — splittings, strips, transistor washers.
- Heaters — strips and corrugated mica.
- Sight windows — transparent mica for furnace and oven viewing ports.
- Electrical insulation — die-cut discs and washers.
Why buy mica insulation from Wedge Industries Limited
- One source for the whole WedgeMICA range — rigid boards, heater plates, flexible sheets, rolls, tubes, gaskets, natural muscovite mica and machined parts — in muscovite, phlogopite and synthetic mica.
- Technical Data Sheet with every quotation and a Material Test Certificate with batch test values on every delivery.
- Sample pieces of board, sheet and natural mica available for evaluation and approval before bulk orders.
- In-house CNC fabrication: parts cut, drilled, milled, turned and threaded to your DXF / DWG / PDF drawing, counted and labelled by drawing number.
- Export packing — sheets packed flat and interleaved on wooden pallets or in wooden cases — for customers in 45+ countries across the Gulf, Europe, Africa and South East Asia.
- Office in Gurugram (Galleria Tower, DLF Phase 4) with group companies in the United Kingdom and Hong Kong for export documentation.
Frequently asked questions
What is ruby muscovite mica?
Ruby muscovite is natural muscovite mica with a ruby tint, prized for clarity, flexibility and very high dielectric strength. WedgeMICA ruby muscovite comes from the Giridih mica belt of Jharkhand, India, and is supplied as blocks, splittings, strips, discs, washers and gauge-glass shields.
What do mica qualities V1 to V6 mean?
V1 to V6 are visual quality grades for natural muscovite mica, V1 being the clearest with the fewest stains and inclusions. The quality is added to the SKU as a suffix, for example WMN-DSC-V2 for V2 quality discs.
What is the dielectric strength of muscovite mica?
Thin natural muscovite sheet has a dielectric strength of 40 to 80 kV/mm measured on 25 to 75 µm film, with a volume resistivity of 4×10^13 to 2×10^17 ohm cm at 25 °C and a maximum operating temperature of 500 to 600 °C. These are typical literature values for the mineral.
What sizes of gauge glass mica shields are available?
WMN-GGS gauge-glass shields for boiler water-level gauges are supplied in lengths of 340 mm and 360 mm, and in other lengths to order.
How do I order natural mica?
Specify the product, visual quality V1 to V6, size and thickness, or send a drawing or sample, using the Get Price button or WhatsApp +91 97175 06848. Wedge Industries Limited quotes in INR and USD and supplies export orders.
Related mica products
- Mica insulation — full WedgeMICA range, grades and selection guide
- Rigid mica board WMB (mica sheet 550 / 800 / 1100 °C)
- Mica heater plates WMH (0.15–1.5 mm)
- Flexible mica sheet WMF
- Mica roll for induction furnace WMR
- Mica tubes and bushes WMT
- Mica gasket sheet WMG
- Machined mica parts to drawing WMX
- Gauge glass mica for boilers
- Mica shields for sight and level gauges
- Condenser mica films
- Electrical insulation products
- High-temperature insulation
- Microporous insulation
Request a quotation for natural muscovite mica
Send the Wedge SKU or the grade, thickness, size or drawing, quantity and any MTC or dielectric test requirement. Wedge Industries Limited returns a technical data sheet, a sample on request and a firm price in ₹ INR and $ USD.
