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A limestone rock with seashell fossils from Croatian island Krk
Fossilised Fish
Microscopic photo of a thin section of calcareous tufa of Holocene age.
Organic/biogenic limestone  mineral microscopy slide under light microscopy
Petrified wood, 20 million years old wood. Wood turned into stone
cross section of a precious mining material
pipe covered in green algae floating in a body of water. The algae growth indicates the pipe has been submerged for some time. It's possible the pipe is part of a submerged structure or debris in the water
Devonian microfossils in limestone matrix includes speckled bryozoan fragments and circular and cylindrical crinoids.
Orthoceras fossils from millions of years ago
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
A fish fossil, Euripholis Pictet, from the upper cretaceous period.
brown slate rock specimen a low grade metamorphic rock compressed from shale
Petrographic thin section under the microscope and with polarized light. Thin sections are geological samples for microscopy. The rock is a Nummulite limestone of Miocene age from Europe. Nummulites are single cell organisms that reach several centimeters in size.
Marine life fossils.
Tiger's eye macro detail texture background. close-up raw rough unpolished semi-precious gemstone
Stems, leaves, fruits and dried leaves of the Fragrant Screwpine wild plant on the beach with a background of blue sea and sunlight
Detail of Hoba meteorite, that lies on the farm of the same name, not far from Grootfontein, in the Otjozondjupa Region of Namibia Africa. main mass is more than 60 tonnes
Small Fossil Shell on a limestone rock. The image was captured in italy (campania).
Backgrounds and textures: natural spiral yellow and black pattern, petrified ammonite shell slab
Tiger’s eye mineral stone sample macro photography
Petrographic thin section under the microscope and with polarized light. Thin sections are geological samples for microscopy used in science and exploration. The rock is a particle limestone of Carbonic age from Europe.
abstract alloy texture design background.
A halibut scale in a very close-op with black background
Abstract mineral background
Scleractinia coral fossil specimen for education. Scleractinia, also called stony corals or hard corals. Scleractinian corals evolved from soft-bodied ancestors in the Middle Triassic period.
Natural agate surfaces, suitable for backgrounds and wallpapers.
Wooden texture background, close up, concept of different backgrounds
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Orthoceras isolated on black background.
Rheum officinale, Chinese rhubarb, Rheum palmatum L．
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