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vanadinite from Morocco isolated on white background
Iron pyrite nugget. (fools gold)
Mimetite on limonite matrix. from El Potosi mine, Santa Eulalia, Chihuahua, Mexico. photography isolated on black background. macro detail close-up rough raw unpolished semi-precious gemstone.
Agate is a microcrystalline variety of quartz, chiefly chalcedony, cryptocrystalline form of silica.  Although agates may be found in various kinds of rock, they are classically associated with volcanic rocks but can be common in certain metamorphic rocks. Most agates occur as nodules in volcanic rocks or ancient lavas where they represent cavities originally produced by the disengagement of volatiles in the molten mass which were then filled, wholly  by siliceous matter deposited in regular layers upon the walls. Cathedral Valley, Capitol Reef National Park, Utah.
Close-up and focused beautiful and vibrant orange and red vanadinite crystal stone
A copper mine ore nugget.
specimen of natural raw wulfenite mineral cutout on white background
Pieces of gold in the rock
cassiterite (tin ore)
Magnified close up of porphyritic granite with fledspar.
crocoite from Tasmania, Australia isolated on white background
Sphalerite, aka Zinc Sulfide, is a n important ore of zinc. It is often found with dolomite - the white formation around it and other minerals. The specimen was collected in Beamsville, Ontario
Focus stacked image of a crystallized specimen of Crocoite from Tasmania, a mineral consisting of lead chromate (PbCrO4) which crystallizes in the monoclinic crystal system, isolated on white
Beautiful crab shell isolated on black background
aragonite mineral specimen stone rock geology gem crystal in New York, New York, United States
moldy slice of a fancy cake on a plate
Stone uranium on a white background
A kidney stone on a white background. Photographed alongside a US dime coin for a size reference.
spessartine on feldspar from Longchang, China isolated on white background
Zeolite crystals in cavities of Igneous volcanic basalt rock
Mimetite on limonite matrix. from El Potosi mine, Santa Eulalia, Chihuahua, Mexico. photography isolated on white blackground. macro detail  background.
Cuprite crystals from the Copper Queen mine in Bisbee, Arizona
Cluster of siderite balls with calcite, from Nikolaevskiy Mine, Dalnegorsk, Russia. Collection mineral isolated on white background
Rheum officinale, Chinese rhubarb, Rheum palmatum L.
Shiny raw copper ore
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
sphalerite from Cagliari, Sardinia isolated on white background
https://farm8.staticflickr.com/7335/16331308347_4331574f6b_o.jpg
vanadinite, \nmineral specimen stone rock geology gem crystal
Mineral Fusinus sp. Pliozän
Free Images: "bestof:7234-vanadinite.png Vanadinite specimen Own 2006-11-10 Carles Millan This image is public domain You may use this image for any purpose including commercial"
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