| Question 1: Gneissic rocks are usually medium to coarse foliated and largely recrystallized but do not carry large quantities of ________, chlorite or other platy minerals. | |||
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| Question 2: Gneisses that are metamorphosed igneous rocks or their equivalent are termed ________ gneisses, diorite gneisses, etc. | |||
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| Question 3: However, depending on their composition, they may also be called ________ gneiss, biotite gneiss, albite gneiss, etc. | |||
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| Question 4: Some sources say it comes from the ________ verb gneist (to spark; so called because the rock glitters) and has occurred in English at least since 1757. | |||
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