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Minerals based on chemical formula

Name the correct mineral according to the chemical formula
Quiz by harry64
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Last updated: July 1, 2013
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First submittedJuly 1, 2013
Times taken672
Average score28.6%
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Hint
Answer
TiO2
Rutile
SiO2
quartz
SiO2(amorphic)
Opal
CaAl2Si2O8
Anorthite
NaAlSi3O8
Orthoclase
(Mg,Fe)7Si8O22(OH)2
Cummingtonite
Au
Gold
UO2
Uraninite
KAlSi3O8
Albite
(Mg, Fe)2SiO4
Olivine
Al2Be3(Si6O18)
Beryl
Al2O3
Corundum
SiC
carborundum
Al2SiO4(F,OH)2
Topaz
Hint
Answer
Ca2(Mg,Fe,Al)5(Al,Si)8O22(OH)2
Hornblende
C (layered)
graphite
C (tetrahedral)
Diamond
K(Mg,Fe)3(AlSi3O10)(F,OH)2
biotite
KAl2(AlSi3O10)(F,OH)2
muscovite
ZrSiO4
zircon
NaAlSi2O6
Jadeite
Mg3Si4O10(OH)2
talc
CaSO4·2H2O
gypsum
CaCO3
calcite
CaF2
fluorite
Ca5(PO4)3(OH,Cl,F)
apatite
MgAl2O4
spinel
Cu3(CO3)2(OH)2
azurite
+1
Level 17
Dec 22, 2013
Great Quiz! 21/28
+1
Level 26
Dec 18, 2018
Albite and orthoclase should be switched!