Midterm Rocks and Minerals to Know - Statistics

General Stats

Answer Stats

Picture	Answer	% Correct
	Obsidian	88%
	Pyrite	81%
	Quartz	81%
	Calcite	69%
	Conglomerate	69%
	Diorite	69%
	Shale/Mudstone	69%
	Basalt	63%
	Biotite	63%
	Coal	63%
	Fluorite	63%
	Garnet	63%
	Halite	63%
	Limestone	63%
	Pumice	63%
	Rhyolite	63%
	Sandstone	63%
	Slate	63%
	Breccia	56%
	Gabbro	56%
	Galena	56%
	Gneiss	56%
	Gypsum	56%
	Magnetite	56%
	Marble	56%
	Schist	56%
	Andesite	50%
	Muscovite	50%
	Chert	44%
	Hematite	44%
	Olivine	44%
	Plagioclase	44%
	Augite/Pyroxene	38%
	Graphite	38%
	Scoria	38%
	Hornblende/Amphibole	31%
	Phyllite	25%
	Quartzite	25%
	Sphalerite	25%
	Amphibolite	19%
	Fossiliferous Limestone	19%
	Tuff	19%
	Coquina	13%
	Metaconglomerate	13%
	Specular Hematite	13%
	Vesicular Basalt	13%
	Arkose	6%
	Oolitic Limestone	6%
	Orthoclase (Potassium Feldspar)	6%