Dielectric constant, power factor, and resistivity of marble

The dielectric constant, power factor, and resistivity of marble from Vermont, Alabama, and Georgia were determined when the marble was dry and after it had been stored for over a month in an atmosphere having a relative humidity of 85 percent.The effect of frequency on the dielectric constant and power factor was also studied.The results nre presented in the form of t ables.It was found that the electrical properties of marble may vary widely but that the colored marbles have higher dielec tric constants and power factors than the white marbles.