Geology Exam Crossword Puzzle

QUESTIONS LIST: phaneritic: a texture of igneous rocks that have cooled slowly in the earth, can see visible crystals, aphanitic: a texture of igneous rocks that have cooled fairly fast but not fast enough to form big crystals, luster: the shine a mineral takes on, based on the way light reflects off of a mineral, typically divided into two main categories: metallic and nonmetallic, glassy: texture of an igneous rock that has instant contact with water or air, vesicular: an extrusive rock filled with small bubble structures, frozen in place as gases escaped from the cooling lava, potassium feldspar: a mineral with a light reddish-brown color that is present in felsic minerals, halite: a mineral that is distinguished by its 90-degree cleavage, calcite: a mineral that is distinguished by its 60-degree cleavages (parallelogram), plagioclase feldspar: a mineral that is distinguished by the presence of striations, cleavage: the way a mineral “splits” into smaller bits of characteristic shape, fracture: when a mineral breaks irregularly, effervescence: the property of a mineral where when in contact with hcl, the mineral fizzes, mafic: potassium feldspar, quartz, and plagioclase feldspar are dominant minerals of what type of rock compositions?, felsic: olivine, augite, and plagioclase feldspar are dominant minerals of what type of composition?, volatile: melting that occurs at subduction zones, decomposition: melting that occurs when pressure is decreased, thermal: melting that occurs when heat is increased, east african rift: where is an example of a location where continental rifting takes place?, antarctica: where is an example of a location where the step weathering, erosion, and beveling takes place?, red sea: where is an example of a location where the step ocean invasion occurs?