Unmodified AFM-grade mica is available in packages of 50 (1 cm x 1 cm) pieces. Custom sizes can often be accommodated. Please inquire regarding custom mica size availability.

SUR.MICA - AFM Grade mica

Mica Specifications
Thermal Conductivity (Cal/Cm2/Sec/Cm/°C)	16 x 10-4
Specific Gravity	2.6 to 3.2 (average 2.83)
Specific Heat	0.207
Moh Hardness	2.8 to 3.2
Shore Hardness	80 to 150
Optic Axial Angle	50° to 75°
Volume Resistivity (Ohms/Cm3)	2 x 1013 to 1 x 1017
*Dielectric Strength (1 to 3 Mils thick in air) Volts/Mil Clear Ruby	3,000 to 6,000
Dielectric Constant	6.5 to 8.7
Power Factor (1/0)	0.0001 to 0.0004
Maximum Coefficient of Expansion, per °C	0.000036
Modulus of Elasticity (10 mils thick), Lb/ln2	25 x 106
Water of Constitution (Percent)	4.5
Water of Constitution, driven off at, °C	600 to 800
Maximum Temperature of Use, °C	600

*The greater the thickness, the lower the dielectric strength per mil.