Midterm Rocks and Minerals to Know - Statistics

General Stats

Answer Stats

Picture	Answer	% Correct
	Obsidian	87%
	Pyrite	87%
	Quartz	87%
	Conglomerate	73%
	Diorite	73%
	Shale/Mudstone	73%
	Basalt	67%
	Biotite	67%
	Calcite	67%
	Coal	67%
	Fluorite	67%
	Garnet	67%
	Limestone	67%
	Pumice	67%
	Rhyolite	67%
	Sandstone	67%
	Slate	67%
	Breccia	60%
	Gabbro	60%
	Galena	60%
	Gypsum	60%
	Halite	60%
	Magnetite	60%
	Marble	60%
	Andesite	53%
	Gneiss	53%
	Muscovite	53%
	Schist	53%
	Chert	47%
	Hematite	47%
	Olivine	47%
	Plagioclase	47%
	Augite/Pyroxene	40%
	Graphite	40%
	Scoria	40%
	Hornblende/Amphibole	33%
	Phyllite	27%
	Quartzite	27%
	Sphalerite	27%
	Amphibolite	20%
	Fossiliferous Limestone	20%
	Tuff	20%
	Coquina	13%
	Metaconglomerate	13%
	Specular Hematite	13%
	Vesicular Basalt	13%
	Arkose	7%
	Oolitic Limestone	7%
	Orthoclase (Potassium Feldspar)	7%