Word Study
    peridotite
WORDNET DICTIONARY
Noun peridotite has 1 sense
CIDE DICTIONARY
peridotite, n. [Cf. F. péridotite.]. 
                                            
                                         An eruptive rock characterized by the presence of chrysolite (peridot). It also usually contains pyroxene, enstatite, chromite, etc. It is often altered to serpentine.                                                                                 [1913 Webster]                                                                                                                                    
                                                                                    
                                                    " The chief diamond deposits in South Africa occur in a more or less altered peridotite."                                                                                            
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