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Anhydrite is a calcium sulfate
Scleractinian coral fossil on a Ammonite fossil. Both from the jurassic period found in the canton of Aargau.
Close up unique rich beautiful raw wild marble stone texture. Background for design. Copy space. Macro image. Horizontal image.
kaolinite mineral sample under light microscopy
A collection of minerals from the sea on a glass table.
Piece of natural mineral gemstones in gift store
Layered natural stone with metallic texture close-up macro photo.
Bauxite is the aluminium ore from which most aluminium is extracted. This form of rock consists mostly of the minerals gibbsite, boehmite, and diaspore, in a mixture with the two iron oxides goethite and hematite, the clay mineral kaolinite, and small amounts of anatase.
Wooden texture background, close up, concept of different backgrounds
Fossil wood, cross-section of an ancient tree photo shot on analogue film
Kimberlite Rock - Source for Diamonds
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
Stone of Bauxite
Lumpy sedimentary rock close up.
Muscovite gneiss with large flat single crystals, made of light mica, hand specimen from Germany, Bavaria, Upper Palatinate, stacked photo
chinese medicine semen momordicae, Momordica cochinchinensis on black background
Geode
Beautiful crab shell isolated on black background
A fossil found in a quarry
cross section of a precious mining material
piece of honeycomb volcanic stone texture on a black background Iceland
Three different types of rocks in sunlight, forming shadows. Kaolinite, Montmorillonite, clay minerals
Sandstone cliffs of Exmouth beach,England.UK.
Hard bauxite mineral sample studio shot with light microscopy
Kidney stone, intact, formed in an alkaline environment in the kidneys after ESWL intervention or surgery. Lithotripsy. Extreme macro photography. selective focus.
Marine life fossils.
Magnesite mineral from Namibia over a wooden table
Salt formations on the stones of Garmasr salt cave in Iran
blue mineral celestin on the black background
Sea Urchin spine fossil. The close-up image shows a sea urchin fossil from the jurassic period inside a limestone.
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