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Question #1

Name the mineral
use the ID properties below
and choose your answer
from the mineral chemistry list

hardness luster crystal shape cleavage fracture streak specific gravity acid reaction magnetism striations double refraction color

Al2O3 C CaCO3 CaCO3•MgCO3 CaF2 CaSO4 Fe2O3 Fe3O4 FeS2 KAlSi3O8 KCl MnO2 NaAlSi3O8 NaCl PbS SiO2 ZnS