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A geological fold in sedimentary rock. The fold is in the shape of a letter \
Rudists embeded in sandstones, cross sections.\nCretaceous marine fossis near Barcelona.
This shock-induced rock displays the typical horsehair or fir leaf patterns which are indicators of shock in rock layers beneath meteor craters. Shot in the UNESCO Vredefort Dome World Heritage Site, North-West Province, South Africa.
Three different types of rocks in sunlight, forming shadows. Kaolinite, Montmorillonite, clay minerals
pyrite sun in anthracite coal shale matrix from Illinois, USA
Archaeopteryx marble imprint, fossilized imprint, imprint transitional form (mosaic form), of a theropod dinosaur. Replica of a lime-impression (limestone slab) from the Jurassic about 150 million years old.
Tree bark is bark and bast and protects the tree from enemies
Marine life fossils.
Fossilized leaf. Selective focus. Close-up, background and texture.
Fossil Fern inside a peace of slate. The fossil is more than 100 mio Years old.
Drawer full of well-organized minerals
Chinese medicine 茯神 有木 Fu Shen / Poria with Hostwood  on black background
Anhydrite is a calcium sulfate
Magnified close up of shale with multiple trilobite fossils.
Fossilized footprint in stone of Trilobites, extinct big marine arthropods
Rhodonite crystal background.
Fossilized fern and other plants. The most ancient gray stone with prints of plants
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
Isolated sample of a shale rock on texture background. shale Metamorphic Rock sample. Shale mineral stone isolated.
ancient fossil of a fish eating another fish
cross section of a precious mining material
Piece of granite stone on white background with shadows close up
Hard bauxite mineral sample studio shot with light microscopy
Geology exploration to collect rock sample
Fossil Fern inside carbon rocks. The image was captured in the Swiss Alps.
Ilmensky Glint is a natural formation, a geological monument on the southern shore of Lake Ilmen. Sheer wall of sedimentary rocks of different colors.
Devonian microfossils in limestone matrix include circular and cylindrical crinoids, fan-shaped brachiopod (shell) fragments, speckled bryozoan fragments. Rock is about 1 1/2\
Muscovite gneiss with large flat single crystals, made of light mica, hand specimen from Germany, Bavaria, Upper Palatinate, stacked photo.
crystaline Barite or Barytes mineral sample- clear or translucent dense mineral collected from the UK
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