12 questions
naturally occurring
crystalline structure
organic
inorganic
true
false
cleavage
fracture
corundum
quartz
fluorite
gypsum
true
false
halite
sulfur
quartz
hermatite
cleavage
fracture
organic, inorganic, metals
metal, nonmetals, inorganics
metals, nonmetals, metalliods
inorganics, organics, elements
true
false
talc
topaz
calcite
fluorite
phosphates
native elements
halides
silicate minerals
mica
calcite
galena
quartz