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Hornfels

Hornfels logo #10101) Hornstone 2) Metamorphic rock 3) Metamorphic rock
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Hornfels

Hornfels logo #10101) Hornstone
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Hornfels

Hornfels logo #21000 Hornfels (German, meaning `hornstone`) is called so because of its exceptional toughness and texture both reminiscent of animal horns. These properties are due to fine grained non-aligned crystals with platy or prismatic habits. Hornfels is the group designation for a series of contact metamorphic rocks that have been baked and indurated by the .....
Found on http://en.wikipedia.org/wiki/Hornfels

hornfels

hornfels logo #21003(from the article `metamorphic rock`) The hornfels are formed by contact metamorphism and typically show little sign of the action of directed pressure. They are fine-grained rocks in ...
Found on http://www.britannica.com/eb/a-z/h/70

hornfels

hornfels logo #22291 A hard, dark-colored, dense metamorphic rock that forms from the intrusion of magma into shale or basalt.
Found on http://www.encyclo.co.uk/local/22291

Hornfels

Hornfels logo #22392A high-temperature, low-pressure metamorphic rock of uniform grain size showing no foliation. Usuall
Found on http://www.encyclo.co.uk/local/22392

Hornfels

Hornfels logo #21217Hornfels is a fine-grained metamorphic rock formed mainly from sedimentary rocks and volcanic tuff in zones of contact metamorphism surrounding igneous intrusions, especially granitic masses, at high temperature and extremely high pressures often at great depths within the Earth's crust. Various varieties of
Found on http://www.probertencyclopaedia.com/browse/HH.HTM

hornfels

hornfels logo #23000 A high-temperature, low-pressure metamorphic rock of uniform grain size showing no foliation. Usually formed by contact metamorphism.
Found on http://www.scientificpsychic.com/etc/geology-glossary.html

hornfels

hornfels logo #20400[n] - a fine-grained metamorphic rock formed by the action of heat on clay rocks
Found on http://www.webdictionary.co.uk/definition.php?query=hornfels

hornfels

hornfels logo #21221Metamorphic rock formed by rocks heated by contact with a hot igneous body. It is fine-grained, brittle, and lacks foliation (a planar structure). Hornfels may contain minerals only formed under conditions of great heat, such as andalusite, Al2SiO5, and cordierite, (Mg,Fe)2Al&...
Found on https://www.encyclo.co.uk/local/21221

Hornfels

Hornfels logo #22734A fine-grained contact metamorphic rock.
Found on https://www.encyclo.co.uk/local/22734

hornfels

hornfels logo #21199a dark, fine-grained metamorphic rock, the result of recrystallization of siliceous or argillaceous sediments by contact metamorphism.
Found on https://www.infoplease.com/dictionary/hornfels
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