science test words April,13,2018

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Terms in this set (23)
intrusivebelow the earths crustfelsicrelating to or denoting a group of light-colored minerals including feldspar, feldspathoids, quartz, and muscovite.maficrelating to, denoting, or containing a group of dark-colored, mainly ferromagnesian minerals such as pyroxene and olivine.vesiculara word describing texture of rocks.plutonicrelating to or denoting igneous rock formed by solidification at considerable depth beneath the earth's surface.volcanicbursting out or liable to burst out violently.solidificationfreezingmolten(especially of materials with a high melting point, such as metal and glass) liquefied by heat.lusterlight interacts with the surface of a crystal, rock, or mineral.cleavagethe splitting of rocks or crystals in a preferred plane or direction.fracturea geologic formation, such as a joint or a fault that divides the rock into two or more pieces.mohsmeasure the relative hardness of a mineral by its resistance to scratching.streakThe colour of a mineral when powdered and observed against an unglazed white porcelain plate.