quartz

Russia, Khabarovsk territory, gold deposit "Bolotistoe". Weathering crust on gabbro-diorites. Contains gold. Red stripes - quartz veins with limonite. Neogene? It is found under the cover of andesite-basalts N1

Russia, Khabarovsk territory, gold deposit "Polyanka". Epithermal quartz vein, contains gold and silver. Paleogene. Paleocene-Eocene.

Russia, Primorsky Territory, Mount Pidan. Granodiorite massif. The massif has the shape of an oval elongated in a sub-latitudinal direction. Area 80 km square. Contacts with host rocks - 60-90 degrees. Granodiorites biotite-hornblende, gray, dark gray, medium-grained, fine-grained. Consist: plagioclase 50-60%, quartz 10-15%, orthoclase up to 10%, biotite 10-12%, hornblende 5-15%. Accessory: apatite, zircon, rarely orthite. Upper Cretaceous.

Russia, Altai, rock "Four brothers". Belokurikhinsky granite massif. Porphyry biotite granites. Medium grained. Porphyry phenocrysts - microcline. Consist: microcline - 35-65%, plagioclase - 10-30%, quartz 20-30% biotite - 4-7%. Accessory: magnetite, zircon, apatite, muscovite. Upper Permian - Low Triassic.

Russia, Altai, mount Round. Belokurikhinsky granite massif. Porphyry biotite granites. Medium grained. Porphyry phenocrysts - microcline. Consist: microcline - 35-65%, plagioclase - 10-30%, quartz 20-30% biotite - 4-7%. Accessory: magnetite, zircon, apatite, muscovite. Upper Permian - Low Triassic.

Russia, Altai, mount Round. Belokurikhinsky granite massif. Porphyry biotite granites. Medium grained. Porphyry phenocrysts - microcline. Consist: microcline - 35-65%, plagioclase - 10-30%, quartz 20-30% biotite - 4-7%. Accessory: magnetite, zircon, apatite, muscovite. Upper Permian - Low Triassic.

Russia, Altai, mount Tserkovka. Belokurikhinsky granite massif. Porphyry biotite granites. Medium grained. Porphyry phenocrysts - microcline. Consist: microcline - 35-65%, plagioclase - 10-30%, quartz 20-30% biotite - 4-7%. Accessory: magnetite, zircon, apatite, muscovite. Upper Permian - Low Triassic.

Russia, Khabarovsk Territory. Polymict coarse sandstones. Dublikanskaya series. Consisting of fragments of quartz and feldspar. At the bottom of the photo are carbonaceous siltstones. Thickness - 700 metres. Upper Jurassic, Tithonian. J3 db

Russia, Khabarovsk Territory. Polymict coarse sandstones. Dublikanskaya series. Consisting of fragments of quartz and feldspar. Third photo - magnification * 10. Thickness - 700 metres. Upper Jurassic, Tithonian. J₃ db

Russia, Khabarovsk Territory. Polymict coarse sandstones. Dublikanskaya series. Consisting of fragments of quartz and feldspar. Third photo - magnification * 10. Thickness - 700 metres. Upper Jurassic, Tithonian. J₃ db