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Clinochlore
- Translations : Clinochlorit, Клинохлор, Grastit, Clinochlorita, 蠕绿泥石
- Synonym : Chlorophoeite, Clinocloro, Klinochlor, Clinochlorite, Grastite, Prochlorite
- Etymology : Greek "klino" = lean and "khloros" = green, due to its colour and optical axis.
- Discovery: 1851 by William Phipps Blake
- Type localityBrinton's Quarry, West Chester, Westtown Township, Chester Co., Pennsylvania, USA.
Gemological data
- Chemical formula : (Mg,Fe+2)5 Al (Si3 Al) O10 (OH)8
- Hardness (Mohs) : 2 - 2.5
- Density : 2.6 - 3.02
- Refractive index : 1.571 - 1.597
- Crystal system : Monoclinique
- Group : Chlorites
