WEBDiabase: A hand specimen of diabase approximately ten centimeters across. The bottom salt-and-pepper colored portion is a polished surface displaying the plagioclase (white) and pyroxene (black) minerals that …
Diabase is a rock with the same composition as basalt or gabbro (lots of calcium plagioclase feldspar and dark iron-rich minerals like amphiboles and …
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 …
Diabase or dolerite is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies …
Diabase rock, also known as dolerite, is an igneous rock that holds a wealth of geological significance and practical uses. Its formation, composition, and distribution …
Diabase (), also called dolerite () or microgabbro, is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are …
Diabase (or dolerite) is a medium-grained igneous rock with basaltic composition. The term is also synonym of microgabbro. The name comes from the Greek diabasis, meaning …
Diabase, dolerite, or microgabbro is a medium-grained, dark-colored, hypabyssal, or subvolcanic rock with a composition similar to plutonic gabbro or volcanic …
Dureté: La diabase est relativement dure et durable. Sa dureté est généralement d'environ 6 à 7 sur l'échelle de Mohs, ce qui signifie qu'il est plus dur que …