WorksheetsMinerals Classification
Total questions: 13
Worksheet time: 7mins
All minerals are _____.
transparent crystals
organic
naturally occurring
all of the above
A student says a rock is just another name for a mineral. Is the student correct?
yes, rocks are the same as minerals, and there is only one main type
no, minerals are made from rocks, and some minerals are made of many rocks
no, rocks are made from minerals, but some rocks are made of just one mineral
yes, rocks are the larger version of a mineral
How do you distinguish a rock from a mineral?
rocks are always bigger than minerals
minerals are usually made of small rocks that bind together
rocks can always be identified by their shape; minerals can not
minerals are made of elements that form crystals and rocks are made of one or more minerals
Minerals are described by their _____.
chemical composition
physical characteristics
both A and B
neither A nor B
Which of the following are the best characteristics to use to identify different minerals?
size, color, streak, and crystal shape
cleavage, weight, hardness, and specific gravity
color, texture, weight, and streak
hardness, luster, density, and streak
Which property are you testing for when you powder a mineral on an unglazed porcelain plate?
Color
Luster
Streak
Hardness
When a mineral breaks along a smooth, flat surface it is said to have _____.
Crystal shape
Cleavage
Fracture
Hardness
Silicate minerals are composed of _____.
silicon-hydrogen compounds
silicon-oxygen compounds
silicon-carbon compounds
silicon-helium compounds
Which is a class of nonsilicate minerals?
clay
calcite
carbonate
quartz
This mineral is referred to as "fool's gold," but it is very brittle. It has a metallic luster and is light yellow in color.
According to the table, which mineral is this?
Gold.
Copper.
Quartz.
Pyrite.
This mineral is the softest and is used in powders. It is found mostly in metamorphic rock and is also called "soapstone."
According to the table, which mineral is this?
Galena.
Talc.
Gold.
Quartz.
This mineral has a hardness of 2.5 - 3, is used in wires, coins, and pipes, and leaves a cooper or red streak.
According to the table, which mineral is this?
Gold.
Galena.
Copper.
Talc.
What can you infer about graphite from the fact that you can scratch it with just your fingernail?
It's not very lustrous.
It's not very hard.
It's streak is black - colored.
It has fracture.
