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ES ch3 test p1

QuestAnswer
minerals are comprised of one or more elements
a mineral is classified as an ore as long as it is profitable and useful
one of the softest minerals is talc
all minerals share the following characteristics except that of being formed from living organisms
the hardness of quartz is 7, this indicates that quartz will scratch all of the following minerals except topaz
muscovite mica will peel off in flat sheets. this is an example of the physical characteristics called cleavage
calcite will scratch gypsum. this is an example of the physical characteristics called hardness
the properties of being _____ make a diamond a gemstone rare and beautiful
if the cost of separating a mineral from waste rock becomes too great, the mineral may no longer be classified as an ore. this happens because the mineral can no longer be mined at at profit
what is true about minerals the are naturally occurring and inorganic
a mineral has a mass of 150 g and a volume of 25 cm3. what is its density 6 g/cm3
a mineral's density is 4.5 g/cm3. if it has a volume of 30 cm3 what is its mass 135 g
minerals always exist in a ____ form solid
silver, gold and copper have shiny surfaces and thus are said to have metallic luster
which of the following best represents a native element silver (Ag)
mica has a hardness of 3. quartz has a hardness of 7. therefore quartz can scratch mica
which mineral is the most common ingredient in nails and screws iron
Created by: laneharvey
 

 



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