Россия, Хабаровский край, долина реки Седьмая вторая. Кварцевый диорит. По всей видимости дайка. На геологической карте не обозначена. Возраст скорее всего - поздний мел. Мелкая равномерно рассеяная вкрапленность пирита.
Russia, Khabarovsk Territory, valley of the Seventh 2nd river. Quartz diorite. Most likely a dike. Not indicated on the geological map. The age is most likely late Cretaceous. Fine, evenly dispersed dissemination of pyrite.
Russia, Subpolar Ural, Kozhim river valley. White, light gray marbled limestones. Include microlayers of quartz-mica composition, the content of quartz grains in them sometimes reaches 30–35%. Under the microscope of the rock, a granoblastic structure with relics of an uneven-grained - blastopsammite and blastoaleurite is found; layered, banded texture and consist of a calcite heterogeneous aggregate (70–99%) with intercalations of quartz grains (up to 25%) and microlayers of carbonaceous-chlorite-sericite, muscovite-chlorite composition.
Russia, Magadan region, left side of the Duck river. Quartz-albite diorite porphyrite with quartz-albite veins. These are the famous Ducks dykes. Dyke №7. The dyke is a slab-like body with a capacity of 0.5 m in the East to 3.5 m in the West, accompanied by apophyses that run parallel to the sedimentary rocks (lower Jurassic siltstone). It is traced to a depth of 250 meters. Xenoliths are rare. Sometimes there are intersecting, until the disappearance of dykes.
Russia, Irkutsk region, watershed of the rivers Homolkho and Imnyakh, gold deposit "Golets Vysochayshy", north wall of the pit. Carbon quartz-mica schists. The first photo shows quartz veins in the pit wall. Schists contain veins, lenses, and impregnations of pyrite and pyrrhotite.Khomolkhinskaya series. Thickness 650 meters. Paleoproterozoic.
Russia, Irkutsk region, valley of the Big Chanchik creek. Carbon-containing sandstones with pyrite phenocrysts. Angarskaya series, upper pack. Mesoproterozoic.
Russia, Irkutsk region, valley of the Big Chanchik creek. Carbon-containing phyllite schists with pyrite lenses. Angarskaya series, upper pack. Mesoproterozoic.
Russia, Irkutsk region, the upper reaches of the creek of Alexander Nevsky, gold deposit - "Nevskoe". Gold ore.Quartz sulfide mineralization in paleoproterozoic quartz sandstones.Mineralization includes: pyrite, arsenopyrite, pyrrhotite, their oxides, gold, quartz and carbonate-quartz veins.
