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Light photomicrograph of pine tree wood seen through a microscope
Mineral Fusinus sp. Pliozän
heated amethyst (citrine) crystal. macro detail texture background. close-up raw rough unpolished semi-precious gemstone
Asbestos family mineral band in geological rock sample
asbestos chrysotile fibers that cause lung disease, COPD, lung cancer, mesothelioma
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.
Crystals of mineral Icelandic spar with light highlights close-up, selective focus
The green variety of muscovite. A member of the mica family. Said to enhance the feeling of joy for the beauty of nature.
Close up of common mare’s tail growing in a pond
Himalayan Salt Lamp on Wooden Floor With Dim Background
gypsum selenite mineral specimen stone rock geology gem crystal
Acacia Shrub at Etosha National Park in Kunene Region, Namibia
Piece of Strontianite mineral from Illinois, Usa. A rare carbonate mineral and one of only a few strontium minerals. It is a member of the aragonite group and crystallizes in the orthorhombic system.
Dhalkut Wilayat, Dhofar Governorate, Oman: incense tree (Boswellia sacra) in the wilderness, mountains near the Yemeni border- the Frankincense tree or olibanum tree is a tree in the Burseraceae family, it is the main representative of the genus Boswellia, from which frankincense is extracted - The resin is harvested via incisions in the trunk or branches of the tree and removing a narrow strip of bark. A milky sap flows out, which coagulates on contact with air and which is then collected by hand -  Tentative Unesco world heritage site, the area as a whole including Dhofar region in Oman and Hawf region in Yemen has been described as a center of plant diversity, and as a 'fog oasis' in the Arabian Peninsula which is predominantly arid.
macro photography of natural mineral from geological collection - rough pyrophyllite stone on white background
Image of a crystal cup of enlightenment with colored light
Backgrounds of Colony Characteristics of Fungus (Rhizopus) in petri dish for education.
cynomorium songaricum
smoky quartz crystal mineral sample used for jewelry or manufacturing
Silver ore in original condistion as found in a silver mine. The close-up image shows a peace of arround 20cm.
natural mineral on a green background with crystal quartz crystals is a  beautiful background and an abstract, macro
crystalline gold
flowers of the buriti palm tree with selective focus
Branch with male hazelnut flowers (Corylus avellana)
close up of sample of natural stone from geological collection - unpolished xonotlite mineral isolated on white background from Azerbaijan
From the mineral collection, Kobalt-Smithsonit
baryte mineral from Marocco with white background
Tiger’s eye mineral stone sample macro photography
Plant spikes deer antlers two kinds of leaves that support the kidney-shaped support each other like a roof tile is not sporadic and leaves are branched like deer antlers hanging sporadically at the end\
Sterile stems short to tall, to 80cm, sometimes sprawly green, usually with numerous whorls of relatively thick unbranched branches; ridges 6-19 on stems, 3-4 on branches. Fertile stems whitish or pinkish, unbranched, soon withering.\nCones: ripe April-May, before the sterile stems.\nHabitat: Generally the commonest horsetail, patch-forming and much the most frequent in drier grassy and waste places; sometimes a tiresome weed.\nDistribution: Throughout Europe.\n\nThis is a very common Species in the Netherlands.\nHorsetail, Field Horsetail, Equisetum arvense, Plant, roadside, Green, Europe, Netherlands, leaf, Spring, Season, outdoors, Nature, Nobody, Scenics, Beauty In Nature, Spore, Flower, stem, uncultivated, cone, brown, yellow, vertical, rural, color image, photography, front view\n\nHorsetail, Field Horsetail, Equisetum arvense, Plant, roadside, Green, Europe, Netherlands, leaf, Spring, Season, outdoors, Nature, Nobody, Scenics, Beauty In Nature, Spore, Flower, stem, uncultivated, cone, brown, yellow, vertical, rural, color image, photography, front view
Free Images: "bestof:Rutile needles.jpg Tuft of brown needles of rutile protruding from a quartz crystal from Brazil Photograph taken at the Natural History Museum London own"
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Gypsum 'desert roses', Chihuahua, Mexico - Natural History Museum of Utah - DSC07463.JPG
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Earrings, Maasai peoples, Kenya or Tanzania, 20th century, hide, metal, glass, plastic - Fernbank Museum of Natural History - DSC00039.JPG
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Athenian decree.jpg
Hyotherium major skull MNHN.jpg
Fronton galerie mineralogie museum paris.jpg
Ceinture amazonienne caribe.jpg
Mola mola stuffed museum La Rochelle.jpg
Cancer bellianus Johnston 1861 stuffed museum La Rochelle.jpg
Mandrillus sphinx MNHN.jpg
Hipparion gracile MNHN1.jpg
Homotherium crenatidens fabrini MNHN.jpg
Ursus spelaeus MNHN.jpg
Equus hemionus kulan MNHN.jpg
Lagothrix lagotricha grison mâle MNHN.jpg
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MAP Expo Armure Clan Ikeda Dragon 30 12 2011 2.jpg
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