Pictures of obsidian rocks

Black obsidian isolated on white background. This pile of large chunks of obsidian pictures of obsidian rocks part of the obsidian flow at the Newberry Caldera in central Oregon. Shiny obsidian shot from three points of view isolated on white background.

Face surface texture of natural magnetite iron ore, Limpopo, South Africa. Black obsidian crystal wand. Natural rock specimen - raw crystal of black obsidian gemstone. Many pieces of crystal of natural stone black tourmaline. Balancing the soul. Black obsidian isolated on white background.

Pictures of obsidian rocks

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Carved dark leaves of Heuchera. Black obsidian crystal wand. Here shown: Snowflake Obsidian.

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Obsidian is an extreme variety of igneous rock with a glassy texture. Most popular accounts say that obsidian forms when lava cools very quickly, but that is not quite accurate. Obsidian starts with lava very high in silica more than about 70 percent , such as rhyolite. The many strong chemical bonds between silicon and oxygen make such lava very viscous, but equally important is that the temperature range between fully liquid and fully solid is very small. Thus, obsidian does not need to cool especially fast because it solidifies especially quickly. Another factor is that low water content may inhibit crystallization. View pictures of obsidian in this gallery. Big obsidian flows display the rugged surface of the highly viscous lava that forms obsidian.

Pictures of obsidian rocks

Obsidian is a natural volcanic glass : it is a kind of igneous rock. It is produced when lava high in silica SiO 2 cools rapidly, and solidifies quickly. They were used as arrowheads , and today they may be used as surgical scalpel blades. Obsidian is mineral -like, but not crystalline. It is dark in color like basalt. Obsidian does not last forever.

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Perennial plant Heuchera micrantha in the garden. Natural rock - Obsidian, volcanic glass mineral stone from Carved dark leaves of Heuchera. Obsidian rock background with plant in autumn. Obsidian and basalt spearheads used in carving the statues on Easter Island. Native American Obsidian Arrowhead. Black grunge textured concrete background. Artwork of a magnified view of bubbles of volatiles volcanic gases trapped in a specimen of obsidian volcanic glass. Obsidian knife with bone handle isolate on a white background Ball of natural black obsidian in hand. Apache Tears. Stone Age Tools on wooden Background. Chakra healing treatment with crystals. Refine Cancel. Black Obsidian stone close up macro.

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Can be used as fashion accessories, also as praying beads, for counting prayers or practicing mindfulness meditation. The obsidian texture is fascinating close up. Obsidian, volcanic glass, Landmannalaugar region, Fjallabak, Iceland, Europe. Perennial plant Heuchera micrantha in the garden. English United States. By gazing into a mirror's smoky depths, sorcerers traveled to the world of gods and ancestors. Semiprecious gemstones of various colors in circle on white background. Obsidian and basalt spearheads used in carving the statues on Easter Island. Copy space for your design. Exploring Newberry National Volcanic Monument. Shiny obsidian shot from three points of view isolated on white background.