1) Volcanic rock
Found on
https://www.crosswordclues.com/clue/blueschist
Blueschist t, also called glaucophane schist, is a metavolcanic rock that forms by the metamorphism of basalt and rocks with similar composition at high pressures and low temperatures, approximately corresponding to a depth of 15 to 30 kilometers and 200 to ~500 degrees Celsius. The blue color of the rock comes from the presence of the predominant...
Found on
http://en.wikipedia.org/wiki/Blueschist
rock that forms by the metamorphism of basalt and rocks with similar composition at high pressures and low temperatures, approximately corresponding to a depth of 15 to 30 kilometers and 200 to ~500 degrees Celsius.
Found on
http://en.wikipedia.org/wiki/Glossary_of_geology
(from the article `amphibole`) ...eclogite, and marble. Glaucophane associated with jadeite, lawsonite, and calcite or aragonite is the characteristic assemblage found in ... ...and albite; glaucophane is a sodic amphibole that is blue to black in hand sample and lavender to blue under the microscope. Because of their ... ...derived ...
Found on
http://www.britannica.com/eb/a-z/b/82
A low temperature, high pressure regionally metamorphic rock, containing abundant glaucophane.
Found on
http://www.encyclo.co.uk/local/20206
A fine-grained schistose rock characterized by high pressure, low-temperature mineral assemblages, and typically blue in color.
Found on
http://www.evcforum.net/WebPages/Glossary_Geology.html
Metamorphic rock formed under great pressures, but not so great temperatures.
Found on
http://www.scientificpsychic.com/etc/geology-glossary.html
Metamorphic rock formed under great pressures, but not so great temperatures.
Found on
http://www.ucmp.berkeley.edu/glossary/gloss2geol.html
Metamorphic rock formed under great pressures, but not so great temperatures.
Found on
http://www.ucmp.berkeley.edu/glossary/glossary_2.html
No exact match found.
