Definitions
Century Dictionary and Cyclopedia
- n. In petrography, a name given by von Lasaulx (1875) to a variety of gabbro composed of lime-soda feldspar and olivin, with a little diallage. Bonney has applied the name especially to the more or less serpentinized forms. Compare forellenstein.
Wiktionary
- n. geology A rare type of ultramafic intrusive rock, consisting primarily of olivine and calcic plagioclase
Etymologies
- From German Troktolit (Wiktionary)
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kmasback Ultramafic intrusive rock type
http://en.wikipedia.org/wiki/Troctolite
http://www.nytimes.com/2009/01/20/science/space/20moon.html?_r=1&ref=science Jan 21, 2009