1) What mineral cleaves in two directions and can be scratched by olivine
(1) fluorite
(2) po...
1) What mineral cleaves in two directions and can be scratched by olivine
(1) fluorite
(2) potassium feldspar
(3) quartz
(4) pyrite
2) Which group contains only minerals?
(1) pyroxene and limestone
(2) hematite and quartzite
(3) fluorite and coal
(4) halite and olivine
Answers: 2
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