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27 Cards in this Set
- Front
- Back
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scoria
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lightweight red-black, numerous small holes, rough
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obsidian
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shiny, black with small bit of red in a square on one side; smooth
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diorite
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gray with sparkles
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pumice
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white, lightweight, lots of holes, hole in center
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pitchstone
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all but two of the surfaces are shiny; rough; black
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anorthosite
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white with black specks
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basalt
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gray with two red faces; rough
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biotite granite
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gray with black pieces; big; rough
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trachyte porphyry
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pink chunks & green chunks
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graphite schist
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black/gold on one side; green on other side; rough
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hornfels
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brown on one side; red brown on other side; triangle; small
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garnet mica schist
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foliated; gold on one edge; silver on another edge; gray on other two edges; brass and black on top; red-brown on bottom
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soapstone
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feels like soap
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marble
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white with a touch of pink
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slate
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big gray triangle
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quartzite
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gray and white dots
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serpentine marble
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several colors with white sparkles
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chlorite schist
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metallic sparkles on the side
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quartz sandstone
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white-gray; rough
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sandstone
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looks like sand
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arkose
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red
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limestone
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red with bits of white; big
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oil shale
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foliated; dark brown with a few light brown stripes
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breccia
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tan with chunks of other colors
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bituminous coal
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black; shiny but not sparkly; big but light
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conglomerate
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white with chunks of other colors
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rock gypsum
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white; big
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