Amphibolite is a metamorphic rock that contains amphibole, especially the species hornblende and actinolite, as well as plagioclase. source
Amphibolite is a metamorphic rock that contains amphibole, especially the species hornblende and actinolite, as well as plagioclase.
A holocrystalline plutonic igneous rock composed primarily of hornblende amphibole is called a hornblendite. source
A holocrystalline plutonic igneous rock composed primarily of hornblende amphibole is called a hornblendite.
Rocks with >90% amphiboles which have a feldspar groundmass may be a lamprophyre. source
Rocks with >90% amphiboles which have a feldspar groundmass may be a lamprophyre.
Amphibolite is a grouping of rocks composed mainly of amphibole and plagioclase feldspars, with little or no quartz. source
Amphibolite is a grouping of rocks composed mainly of amphibole and plagioclase feldspars, with little or no quartz.
Amphibolite is typically dark-colored and heavy, with a weakly foliated or schistose (flaky) structure. source
Amphibolite is typically dark-colored and heavy, with a weakly foliated or schistose (flaky) structure.
Amphibolites need not be derived from metamorphosed mafic rocks. source
Amphibolites need not be derived from metamorphosed mafic rocks.
Metamorphosed basalts create ortho-amphibolites and other chemically appropriate lithologies create para-amphibolites. source
Metamorphosed basalts create ortho-amphibolites and other chemically appropriate lithologies create para-amphibolites.
Metamorphic rocks composed primarily of amphibole. source
Metamorphic rocks composed primarily of amphibole.
Thereafter, whole rock geochemistry will suitably identify ortho- from para-amphibolites. source
Thereafter, whole rock geochemistry will suitably identify ortho- from para-amphibolites.
Basalt ortho-amphibolite; hornblende/actinolite +/- albite +/- biotite +/- quartz +/- accessories0 source
Basalt ortho-amphibolite; hornblende/actinolite +/- albite +/- biotite +/- quartz +/- accessories0
High-magnesia basalts; as ortho-amphibolite, but may contain anthophyllite, a Mg-rich amphibole source
High-magnesia basalts; as ortho-amphibolite, but may contain anthophyllite, a Mg-rich amphibole
Amphibolite is a common dimension stone used in construction, paving. source
Amphibolite is a common dimension stone used in construction, paving.
Amphibolite was a favourite material for the production of adzes (shoe-last-celts) in the central European early Neolithic. source
Amphibolite was a favourite material for the production of adzes (shoe-last-celts) in the central European early Neolithic.
In epidiorite the original clinopyroxene (most often augite) has been replaced by the fibrous amphibole uralite. source
In epidiorite the original clinopyroxene (most often augite) has been replaced by the fibrous amphibole uralite.
Amphibolite facies is usually a product of Barrovian Facies Sequence or advanced Abukuma Facies Sequence metamorphic trajectories. source
Amphibolite facies is usually a product of Barrovian Facies Sequence or advanced Abukuma Facies Sequence metamorphic trajectories.
Amphibolite facies conditions are experienced at temperatures in excess of 500 °C and pressures less than 1.2 GPa, well within the ductile deformation field. source
Amphibolite facies conditions are experienced at temperatures in excess of 500 °C and pressures less than 1.2 GPa, well within the ductile deformation field.
