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Lime trunk
Close Up Of Natural Rock Surface
galena metallic ore mineral sample, a rare earth mineral
Silica Quartz mineralisation around purple fluorite cubic crystals in a mineral rock sample
banded iron ore from desert area in northern Chad, Africa isolated on white background
Good for texturing
Fragment of uranium or yellow cake
Part of a gray stone isolated on white background.
Layered maroon and light speckled  rock magnified.
Cross-section Dicot, Monocot and Root of Plant Stem under the microscope for classroom education.
sunstone mineral stone sample macro photography
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
Rugged terrain in the Garden of the Gods in Colorado Springs, Colorado, western USA of North America
Pyrolusite ore is a mineral basically composed of manganese dioxide.
Sheepeater Cliffs on the Grand Loop Road, south of Mammoth Hot Springs is named after the Shoshone people, also known as the Tukudika or 'Sheepeaters,' who once lived here. The cliffs are composed of columnar basalt, formed from lava flows about 500,000 years ago. The hexagonal columns were created as the lava cooled and contracted, resulting in the distinctive jointing patterns seen today. The site provides insights into the history and lifestyle of the native Shoshone people who utilised the area for hunting bighorn sheep and other resources.
Ichnites or fossilized footprints of dinosaur. El Portillo, Munilla, La Rioja, Spain.
Pegmatite rock close up with many crystals.
Almandine in mica slate on white background
Barite or Barytes is a naturally occuring mineral made of Barium Sulphate and the source of the element Barium. It is white or colourless and crystaline with a distinct heavy density. Mined to be used in paint and paper production and in the oil industry.
Abstract pattern of an 19th-century book structure.
Highly textured brown granite
lava with some hauyne from the Mendig, Germany isolated on white background
Stone wall and cloudy sky(the from below view against the blue sky)
Details of a fragment of a quartz crystal geode
Pegmatite mineral close up
Druza of large crystals of galena, with crystals of calcite and siderite
Mikroklin Amazonit Kristall peak Teller County, Colorado
Raw Rosasite copper zinc carbonate hydroxide formation
Shellfish Debris and Seawater Erosion on Coasts (Barnacle fragments on rocks)
Free Images: "bestof:Domain structure of fibronectin.jpg Domain structure of fibronectin en wikipedia Rockfang 2009-01-25 Spal05 wikipedia en Spal05 original upload log page en"
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