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Pyrophyllite
Pyrophyllite
Mineral Properties and Uses
Physical Properties of Pyrophyllite |
| Uses |
ceramics, refractory materials |
| Color |
white, pale blue, yellow, grayish green, brownish green |
| Streak |
white |
| Luster |
pearly to greasy |
| Diaphaneity |
translucent |
| Cleavage |
perfect |
| Mohs Hardness |
1 - 2 |
| Specific Gravity |
2.7 - 2.9 |
| Distinguishing Characteristics |
cleavage, greasy feel |
| Crystal System |
monoclinic |
| Layering of pyrophyllite from Moore County, North Carolina. Specimen is approximately 3/4 inch (1.9 centimeters) thick. |
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| Pyrophyllite from Moore County, North Carolina. Specimen is approximately 4 inches (10 centimeters) across. |
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