Common Rocks Crossword Puzzle

QUESTIONS LIST:

• granite : igneous, intrusive rock with large crystals, used in counter tops
• obsidian : igneous, extrusive, volcanic glass
• gneiss : metamorphic, foliated, made from granite
• meta conglomerate : metamorphic, foliated, formed from conglomerate
• shale : sedimentary, fine grained rock that forms from silt, can contain petroleum
• quartzite : metamorphic, non-foliated, formed from quartz
• basalt : igneous, extrusive, dark rock without crystals
• limestone : sedimentary rock composed of fossilized shells of sea creatures
• sandstone : sedimentary rock, often banded, formed from the lithification of sand
• conglomerate : sedimentary, clastic rock, made from small rocks lithified together
• marble : metamorphic, non-foliated, formed from limestone
• slate : metamorphic, formed from shale, used for roofing and flooring
• pumice : igneous, extrusive, formed from rapid cooling, floats, used for removing dead skin from feet and body