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An overview of vis-nir-swir field spectroscopy - Spectral International

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Figure 60 - Actinolite, tremolite, epidote,<br />

clinozoisite, Fe-Chlorite, Mg-chlorite,<br />

biotite, phlogopite, vesuvianite, and<br />

prehnite<br />

47<br />

Figure 61 - Forsterite, serpentine, talc, calcite,<br />

tremolite, and magnetite<br />

MAGNESIUM SKARN<br />

Magnesium skarns are developed as<br />

metasomatic replacements <strong>of</strong> dolomitic<br />

limestone. High temperature magnesium<br />

skarns are characterized by forsterite, and<br />

diopside and low temperature magnesium<br />

skarns contain serpentine and talc. Both <strong>of</strong><br />

which occur as retrograde minerals after<br />

forsterite and clinopyroxene.<br />

Figure 61 plots forsterite, serpentine, talc,<br />

calcite, tremolite, magnetite.

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