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Fracture is when
the rock breaks along even surfaces that don't follow the atomic arrangement
less than 7
metallic objects
place a drop of acid on the mineral
rubbing a rock of a known hardness aganist a rock of an unknown hardness
the hardness is 1-2, the color is silver to gray, the streak is black, it's metallic
rubbing corner off rock on porcelain plate
diamond
The streak can be tested by
the rock breaks along even surfaces that don't follow the atomic arrangement
less than 7
metallic objects
place a drop of acid on the mineral
rubbing a rock of a known hardness aganist a rock of an unknown hardness
the hardness is 1-2, the color is silver to gray, the streak is black, it's metallic
rubbing corner off rock on porcelain plate
diamond
A rock is graphite is
the rock breaks along even surfaces that don't follow the atomic arrangement
less than 7
metallic objects
place a drop of acid on the mineral
rubbing a rock of a known hardness aganist a rock of an unknown hardness
the hardness is 1-2, the color is silver to gray, the streak is black, it's metallic
rubbing corner off rock on porcelain plate
diamond
What is the best way to determine if the mineral sample is calcite or quartz?
the rock breaks along even surfaces that don't follow the atomic arrangement
less than 7
metallic objects
place a drop of acid on the mineral
rubbing a rock of a known hardness aganist a rock of an unknown hardness
the hardness is 1-2, the color is silver to gray, the streak is black, it's metallic
rubbing corner off rock on porcelain plate
diamond
I scratch a rock aganist quartz. Quartz scratches the rock. This means the hardness is
the rock breaks along even surfaces that don't follow the atomic arrangement
less than 7
metallic objects
place a drop of acid on the mineral
rubbing a rock of a known hardness aganist a rock of an unknown hardness
the hardness is 1-2, the color is silver to gray, the streak is black, it's metallic
rubbing corner off rock on porcelain plate
diamond
Light bounces off
the rock breaks along even surfaces that don't follow the atomic arrangement
less than 7
metallic objects
place a drop of acid on the mineral
rubbing a rock of a known hardness aganist a rock of an unknown hardness
the hardness is 1-2, the color is silver to gray, the streak is black, it's metallic
rubbing corner off rock on porcelain plate
diamond
The hardest mineral is
the rock breaks along even surfaces that don't follow the atomic arrangement
less than 7
metallic objects
place a drop of acid on the mineral
rubbing a rock of a known hardness aganist a rock of an unknown hardness
the hardness is 1-2, the color is silver to gray, the streak is black, it's metallic
rubbing corner off rock on porcelain plate
diamond
Hardness can be tested by
the rock breaks along even surfaces that don't follow the atomic arrangement
less than 7
metallic objects
place a drop of acid on the mineral
rubbing a rock of a known hardness aganist a rock of an unknown hardness
the hardness is 1-2, the color is silver to gray, the streak is black, it's metallic
rubbing corner off rock on porcelain plate
diamond
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