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Pyrophyllite - Mineral Properties and Uses

Uses

Pyrophyllite uses include: ceramics, refractory materials.

Color

white, pale blue, yellow, grayish green, brownish green

Streak

white

Luster

pearly to greasy

Diaphaneity

translucent

Cleavage

perfect

Hardness

1.0 - 2.0

Specific Gravity

2.7 - 2.9

Distinguishing
Characteristics

cleavage, greasy feel

Crystal System

monoclinic

Pyrophyllite Pictures

pyrophyllite
Pyrophyllite from Moore County, North Carolina.
Specimen is approximately 4 inches (10 centimeters) across.

pyrophyllite
Layering of pyrophyllite from Moore County, North Carolina.
Specimen is approximately 3/4 inch (1.9 centimeters) thick.




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