rock that is, in essence, a fine-grained gabbro.
Found op http://www.cst.cmich.edu/users/dietr1rv/gemrxAppB.htm
Di'a·base noun [ French diabase , from Greek ... a crossing or passing over, from ...; ... + ... to go; -- so called by Brongniart, because it passes over to diorite.] (Min.) A basic, dark-colored, holocrystalline, igneous rock, consisting e...
Found op http://www.encyclo.co.uk/webster/D/56
<chemical> A basic, dark-coloured, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; often limited to rocks pretertiary in age. It includes part of what was early called greenstone. ... Origin: F. Diabase, fr. Gr. A crossing or passi...
Found op http://www.mondofacto.com/facts/dictionary?diabase
• (n.) A basic, dark-colored, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited to rocks pretertiary in age. It includes part of what was early called greenstone.
Found op http://thinkexist.com/dictionary/meaning/diabase/
fine- to medium-grained, dark gray to black intrusive igneous rock. It is extremely hard and tough and is commonly quarried for crushed stone, under ... [1 related articles]
Found op http://www.britannica.com/eb/a-z/d/41
Diabase s or dolerite is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. In North American usage, the term diabase refers to the fresh rock, whilst elsewhere the term dolerite is used for the fresh rock and diabase refers to altered material. Diabase dik...
Found op http://en.wikipedia.org/wiki/Diabase
diabase: see basalt.
Found op http://www.infoplease.com/ce6/sci/A0912523.html
Diabase is a dark, intrusive, basic igneous rock made up of plagioclase feldspar crystals, surrounded by smaller grains of pyroxenes, such as augite and up to ten percent quartz. Diabase is formed from magna that has cooled just below the Earth's surface, and is sometimes found as intrusions in olde...
Found op http://www.probertencyclopaedia.com/browse/HD.HTM
Alternative name for dolerite (a form of basalt that contains very little silica), especially dolerite that has metamorphosed
Found op http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0038606.html
a crystalline igneous rock rich in magnesium & iron content; equivalent to volcanic basalt
Found op http://www.njwildlifetrails.org/OutontheTrails/GlossaryofNaturerelatedTerms
1) Rock that is, in essence, a fine-grained gabbro
Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/diabase/1
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