18 questions
This rock has lots of holes in it. It was created by a very dangerous volcano. It is very light weight and can float on water.
Talc
Gypsum
Biotite
Pumice
This rock is thick, black and glassy. It is very hard and hard to break. This was created from a volcano that was not very dangerous.
Biotite
Obsidian
granite
pumice
This rock looks like gold. It is hard and leaves a gold or black streak. It would break your teeth if you tried to bite it.
Pyrite
copper
gold
bauxite
This rock is pink, glassy, and shiny. You can sometimes see through it.
quartz
orthoclase
calcite
rose quartz
This mineral is white and glassy. You can sometimes see through it. It is very similar to another mineral in our set.
quartz
calcite
gypsum
rose quartz
This mineral is thin and white. It can break easily and can flake off.
biotite
gypsum
muscovite
talc
This rock is the heaviest one we have tested. It is dark grey and shiny. It looks like metal. It is not magnetic.
magnetitie
galena
hematite
muscovite
This rock is black and slightly heavy. It is magnetic
Hematitie
Galena
Muscovite
Magnetite
This rock is a brown color with green or blue on it due to weathering. The Statue of Liberty is made of this.
pumice
orthoclase
pyrite
copper
This rock is grey and white. You can easily scratch it with a fingernail. Chalk is made from this mineral.
Talc
Pumice
Obsidian
Quartz
This mineral has a cubic shape. It is white or clear.
quartz
gypsum
calcite
talc
This mineral is black and tightly put together in many layers. This mineral can flake off and break easily. It leaves a yellow/black streak.
hornblende
biotite
mica
obsidian
This mineral is dull and pink. It looks like a piece of gum. It is light weight and you cannot see through it.
Rose Quartz
Quartz
Orthoclase
Galena
This mineral is tan and orange. It looks like it has holes in it. It looks like it could have fossils.
pumice
gypsum
talc
bauxite
This rock is mostly black and has some white flecks in it. It looks like the two colors are blended together.
galena
hornblende
pyrite
magnetite
This is the whitest mineral in our set of rocks. It is dull, and is soft to the touch. It leaves a white streak.
talc
calcite
quartz
gypsum
This rock is black and red. It has a rusty color and is usually very dark.
hematite
jasper
magnetite
pumice
This rock is very red. It has an irregular shape. It does not have any black in it.
copper
hornblende
hematite
jasper