amphibole

Rock type: 
Age: 
97 millions years

Russia, Khabarovsk Territory. Massif gabbro. Gabbro amphibole, medium grain. Butakano-Churkinsky complex. Upper Cretaceous.

Rock type: 
Age: 
87 millions years

Russia, Khabarovsk territory, Khekhtsir range. Korfovsky massif granodiorite porphyry. Gray, medium and coarse-grained rocks. Consist: plagioclase, K-spar, amphibole, pyroxene, biotite. Upper Cretaceous.

Rock type: 
Age: 
87 millions years

Russia, Khabarovsk territory, Khekhtsir range. Korfovsky massif granodiorite porphyry. Gray, medium and coarse-grained rocks. Consist: plagioclase, K-spar, amphibole, pyroxene, biotite. Upper Cretaceous.

Rock type: 
Age: 
3800 millions years

Russia, Amur Region. Gneiss biotite-amphibole. Diffused interspersed pyrites. Mogochinskaya series. Granulite facies of metamorphism. Consist: amphibole 2-25%, biotite 1-15%, hypersten 0-15%, clinopyroxene 0-5%, plagioclase 20-60%, quartz 15-30%, K-spar 0-53%. Accessory: apatite, zircon, monazite, sphene, rutile, pyrite, magnetite. AR1Im