M.J. Hibbard
Chlorite


Chlorite   (Mg,Fe,Al)6(Al,Si)4O10(OH)8    Triclinic and Monoclinic
o Low-grade metamorphic environment. (chapters 14 and 18)
- Thin section view (PPL) of metamorphosed (low-grade) basalt is about 1.5 mm wide. The green chlorite is characteristic of basalt converted to greenstone. The white lath-shaped crystals are plagioclase, the small brown crystals are titanite, and the off-white equant crystals are clinopyroxene. Franciscan subduction complex, northern California.

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