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View of the graphite specimen. It is a crystalline form of the element carbon with its atoms arranged in a hexagonal structure. It occurs naturally in this form and is the most stable form of carbon.
Realy rusted pipe line need to be changed as soon is possible
small gray shiny metallic nugget just found by searchers on the white background
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
Close-Up Of Zeolite On Table
Contact sheet representing 24 hours and one moment.
Bornite, also known as peacock ore, is a sulfide mineral with chemical composition Cu 5FeS 4 and it is a common copper ore
Money in fossils. Banknotes prints in stone
Rocks on a white background
chinese medicine Radix Polygonum Multiflorum Preparata, Prepared tuber of multiflower knotweed on black background
Schist is a medium-grade metamorphic rock with medium to large, flat, sheet-like grains in a preferred orientation (nearby grains are roughly parallel). It is defined by having more than 50% platy and elongated minerals, often finely interleaved with quartz and feldspar. These lamellar (flat, planar) minerals include micas, chlorite, talc, hornblende, graphite, and others. Quartz often occurs in drawn-out grains to such an extent that a particular form called quartz schist is produced. Schist is often garnetiferous. Schist forms at a higher temperature and has larger grains than phyllite. Geological foliation (metamorphic arrangement in layers) with medium to large grained flakes in a preferred sheetlike orientation is called schistosity
Magnified close up of mineral encrusted basalt rock.
Mineral stone bauxite on gray background.
Stone image on a white background
Green Microcline
Devonian microfossils in limestone matrix include circular and cylindrical crinoids, fan-shaped brachiopod (shell) fragments, speckled bryozoan fragments. Rock is about 1 1/2\
Rocks on a white background
Chinese medicine 茯神 有木 Fu Shen / Poria with Hostwood on black background
Biotite, also known as black mica, is a sheet silicate consisting of iron, magnesium, aluminium, silicon, oxygen, and hydrogen sheets that are weakly bound together by potassium ions
cross section of a precious mining material
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.
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99.9% fine molybdenum isolated on white background
Asbestos family mineral band in geological rock sample
details of a colourful stone
Rheum officinale, Chinese rhubarb, Rheum palmatum L．
Specimen of mineral phosphorite or rock phosphate
Magnified close up of large crystal white and black granite.
Autunite (hydrated calcium uranyl phosphate), is a yellow-greenish fluorescent phosphate mineral Autunite crystallizes in the orthorhombic system and often occurs as tabular square crystals, commonly in small crusts or in fan-like masses.it is radioactive and also used as uranium ore. Autunite fluoresces bright green to lime green under UV light. The mineral is also called calco-uranite, but this name is rarely used and effectively outdated.
Unique underground geology of stalactites and stalagmites.
Free Images: "bestof:Photograph of Sample Mine Ties - NARA - 2129495.tif Scope and content Original caption One of the best and of worst Mine ties must be solid enough to hold"
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