Science Quiz / minerals in a general geology course

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Can you name the minerals in a general geology course?

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Description	Mineral Name	Formula
Nonsilicate mineral that can be magnetic		Fe3O4
Nonsilicate mineral that can fizz in HCl acid		CaCO3
Silicate mineral that can feel soapy; Hardness=1		H2Mg3(SiO3)4
Silicate mineral that can be chalky		Al2Si2O5(OH)4
Nonsilicate mineral with red streak		Fe2O3
Nonsilicate mineral with 4 planes of cleavage; Hardness=4		CaF2
Silicate mineral that is harder than glass and can appear olive green		(Fe,Mg)2SiO4
Silicate mineral that can appear deep red and has conchoidal fracture		Advanced silicate formula
Nonsilicate mineral with hardness of 2		CaSO4*2H2O
Nonsilicate mineral with yellow streak that smells like sulfur		ZnS

Description	Mineral Name	Formula
Silicate mineral that can appear black with 2 planes of cleavage not at 90 degrees		Advanced silicate formula
Silicate mineral that can have 1 plane of cleavage and appear dark		Advanced silicate formula
Nonsilicate mineral that has a greenish-black streak, looks like gold, and can be cubic		FeS2
Nonsilicate mineral that can have 3 planes of cleavage at 90 degrees and taste like salt		NaCl
Silicate mineral that can have 1 plane of cleavage and appear clear		Advanced silicate formula
Silicate mineral that has a hardness of 7 and can have a crystal form with 6 sides		SiO2
Nonsilicate mineral that is very dense; State mineral of Missouri		PbS
Nonsilicate mineral that is used in pencil lead, can feel greasy, and leaves a gray streak		C
Silicate mineral that has 2 planes of cleavage at 90 degrees and exhibits exsolution lamellae; Hardness=6		KAlSi3O8
Silicate mineral with 2 planes of cleavage and exhibits striations		(Na,Ca)Al(1-2)Si(2-3)O8

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Created Oct 5, 2009
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