Description
A group of green silicate minerals containing aluminum, iron, and magnesium. Members of the chlorite group include chamosite, clinochlore, nimite, alushtite, and penninite. Chlorite is a soft, mica type mineral that occurs in irregular foliated masses. It has been found in Egypt, Middle East, western Asia, and the U.S. (New York, California). The opaque, flaky mineral was used in antiquity for seals and small decorative items.
Synonyms and Related Terms
osudite; greenstone; vermiculite; green earth; clinochlore (Mg-rich chlorite); chamosite (Fe-rich chlorite); nimite (Ni-rich chlorite); pennintite (Mn-rich chlorite); alushtite (Al-rich chlorite); chlorite (Fr.); clorita (Esp.); clorite (Port.); Chlorit (Deut.); chloriet (Ned.)
| (Mg,Fe,Al)6(Si,Al)4O10(OH)8 |
| 2.0 - 2.5 |
| 2.6-3.3 |
| 1.57 - 1.64 |
Other Properties
Luster = vitreous to pearly. Streak = colorless to pale green. Perfect cleavage in one direction. Flakes are flexible
Additional Information
Mineralogy Database: Tosudite
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Last updated on: 7/6/2009 8:17:35 AM
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