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Thermal champagne pool seen in Rotorua in the north island of New Zealand.

Close-up of a group of four differently colored stones in a stream bed. Different textures surrounded by cold water.

Pink lake in Cuba, Cayo Coco island. It has its color because of the plankton

Sea water on the coast of Guinea Bissau

The Unakite is a metamorphic rock roses and green with white veins, a type of granite composed of quartz (white or colorless), orthoclase pink and green epidote. Named after the site of Unaka (North Carolina), where it was discovered.

Mountain river and waterfall, east Serbia, Europe

Close up detail of frozen branch in small waterfall, brook. Thawing, weather, early spring background

Salmon run up stream through the ladder at the Ballard locks.

Water pollution with cooper mine residuals

A beautiful full frame abstract jewel-like polished rock background in soft focus.

aquamarine crystal on matrix from Shigar, Pakistan

Small spring frog tries to hid between the glass top and leg of a table.

pyrrhotite iron sulfide rare earth mineral

Detail of cultivated field, Toscana, Italy,Nikon D3x

Ice formations in a brook ice art

Frozen Puddle in the Meadow, Canada

Boiling water bubbler Geyser. Active geyser with major eruptions. Yellowstone NP, Wyoming, USA

A multicoloured background of textured stone or marble.

Close up piece of raw marble. Macro shooting of metamorphic rock specimens - marble stone

Autumn in forest,Color image of natural landscape and plant photograph in beautiful nature. This outdoor photograph taken with a Canon DSLR camera and is a color image and edited in Photoshop sharpened and color correction made.

A closeup of the polluted river in the Rio Tinto Mining Park under the sunlight in Spain

stone Backgrounds

Crystal of potassium alum for spa and skin care

Calama, Chile

Stone in a salt mine

Water and algae in hot spring of Chae Son national park in Lampang province in Thailand

Defocused old metal iron rust background and texture, orange and black color rust steel background

Mammoth Hot Springs feature in Yellowstone National Park

Aerial texture of a frozen river without snow on ice, a vertical view from a drone, colorful streams with islands.

Water pollution

Free Images: "bestof:Ferrous carbonate oxidation.JPG en The reaction of white iron II carbonate with the dissolved oxygen in ordinary water turns it into a greenish-gray color where"

Homme jaguar ancêtre GIII maya.jpg

Morning Sunrise 1.jpg

Lasioglossum_seillean,_F,_side,_New_Hampshire,_Coos_County_2015-10-13-13.40.jpg

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Hylaeus_leptocephalus,_m,_side,_Dorchester_Co,_MD_2016-02-18-16.57.jpg

Triepeolus_distinctus,_m,_anne_arundel_co,_md,_back_2016-08-31-17.40.jpg

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Lasioglossum_boreale,_F,_Side,_NH,_Coos_County_2015-10-01-11.57.20_ZS_PMax_UDR.jpg

Lasioglossum_boreale,_F,_Face,_NH,_Coos_County_2015-10-06-11.20.19_ZS_PMax_UDR.jpg

Pieter_Brueghel_the_Elder_-_The_Dutch_Proverbs_-_Google_Art_Project.jpg

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Chlorine-dioxide solution-vs-gas.svg

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Iron_boat,_cycles_etc._en_route_Ngombe,_Congo,_ca._1900-1915_(IMP-CSCNWW33-OS12-4).jpg

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Drottning_Désiré.jpg

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March_12,_1960.jpg

Flag of SR Serbia.svg

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The Triumph of Venus (François Boucher) - Nationalmuseum - 17773.tif.tiff

Rubens_Conversion_of_St._Paul.jpg

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Frans_Hals_-_Portrait_d'Aletta_Hanemans.jpg

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Swine flu infection exponent by county FluTracker June 2009.svg

Ferrous carbonate oxidation.JPG

Ferrous carbonate.JPG

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Ferrous hydroxide.JPG

Antimony oxychloride solid.JPG

Copper(II) carbonate crystal structure.png

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