Hornblendite

Hornblendite is a plutonic rock consisting mainly of the amphibole hornblende.

Hornblende-rich ultramafic rocks are rare and when hornblende is the dominant mineral phase they are classified as hornblendites with qualifiers such as garnet hornblendite identifying a second abundant contained mineral.

Metamorphic rocks composed dominantly of amphiboles are referred to as amphibolites.

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