Worksheets1 Minerals: Building blocks of rocks
Total questions: 19
Worksheet time: 14mins
These are the building blocks of rocks. Scientists have discovered over 4,000 of these.
rocks
minerals
coal
igneous
This 'optical feature' of a mineral SHOULD NOT be used as a sole/only indicator for what a mineral is.
Color
Crystal form
Streak
Hardness
By definition, a mineral has which of the following characteristic(s)?
definite chemical composition
crystal structure
naturally occurring organic solid
all of the above
Scientists determine the hardness of minerals by using the _________________.
streak test
cleavage/fracture
Lohrs scale
Mohs scale
______________ is the tendency of a mineral to split along specific planes of weakness to form smooth, flat surfaces.
cleavage
elements
fracture
erosion
The color of the powdered form of a mineral is its...
luster
hardness
color
streak
The property of hardness is being observed when the mineral Calcite has a hardness of 3.5 and Quartz has a hardness of 7.
Based on Moh's Scales of Hardness: Which mineral can scratch another mineral that has a hardness of 5.4?
Calcite
Quartz
neither rock
both rocks
Hardness is how easily a mineral can be scratched
true
false
Mohs' Scale shows the hardness of minerals. A diamond is the softest mineral and talc is the hardest.
true
false
If a mineral reacts with acid it can
bubble and fizz (called effervescence)
create a new mineral
turn a new color
explode due to a violent chemical reaction
