Nesosilicate (insular SiO4 groups)
Specific gravity: 3.17 to 3.35
Colour: Brown, yellow, white, orange, reddish brown.
Common impurities: Fe,Ti,Al,Mn,Ca,(OH)
Clinohumite may be found in
Titanium is a minor constituent of clinohumite in most occurrences.
Clinohumite is stable throughout the
upper mantle to depths of at least 410 km.
It occurs in contact metamorphic zones in dolostone and metasomatised limestone adjacent to felsic plutonic rocks, in serpentine and talc schist, and also in carbonatites. Associated minerals include grossular, wollastonite, forsterite, monticellite, cuspidine, fluoborite, ludwigite, dolomite, calcite, talc, biotite, spinel, vesuvianite, sanidine, meionite and nepheline (HOM).
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