peridotite
Noun
Meaning
An eruptive rock characterized by the presence of chrysolite (peridot). It also usually contains pyroxene, enstatite, chromite, etc. It is often altered to serpentine.
Source: Webster's dictionarySynonyms
fossil
basalt
gabbro
amphibole
andesite
pegmatite
diorite
dolerite
aplite
amphibolite
eclogite
granulite
diabase
dacite
aegirine
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Hypernyms
Hyponyms
Examples
Xenoliths of garnet peridotite have been carried up from depths of convert and greater by kimberlite, and garnets from such disaggegated xenoliths are used as a kimberlite indicator minerals in diamond prospecting.
Hence, garnet peridotite must have been formed at great depth in the earth.