pavlin722007: Quartz Geode
pavlin722007: Quartz-chalcedony concretion with geode (from Staritsa)
pavlin722007: Gzhel - quartz concretion
pavlin722007: Quartz crystals on a large flint
pavlin722007: An interesting stone from a forest stream
pavlin722007: Soleniscidae - Strobeus, view 1
pavlin722007: Soleniscidae - Strobeus, view 2
pavlin722007: Soleniscidae - Strobeus, view 1
pavlin722007: Carboniferous: Brachiopoda. Productida. Admoskovia
pavlin722007: Aulopora macrostoma
pavlin722007: A stone from a glacial moraine
pavlin722007: Carboniferous: Brachiopoda
pavlin722007: Quartz
pavlin722007: Striped flint from the vicinity of Serpukhov
pavlin722007: Syringopora
pavlin722007: Minerals and fossils from Gzhel (9)
pavlin722007: Minerals and fossils from Gzhel (8)
pavlin722007: Minerals and fossils from Gzhel (7)
pavlin722007: Minerals and fossils from Gzhel (6)
pavlin722007: Minerals and fossils from Gzhel (5)
pavlin722007: Minerals and fossils from Gzhel (4)
pavlin722007: Minerals and fossils from Gzhel (3)
pavlin722007: Minerals and fossils from Gzhel (2)
pavlin722007: Minerals and fossils from Gzhel (1)
pavlin722007: Clay quarry (clay of the Carboniferous period)
pavlin722007: Jurassic ammonite from Glebovo
pavlin722007: Ammonite from the Cheremukha River
pavlin722007: Ammonite from the Cheremukha River
pavlin722007: Initial turns of Jurassic ammonite from Glebovo
pavlin722007: Microfossils of Serpukhovian (Mississippian). Bryozoa