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Hardness is the measure of how easily a mineral can be scratched.
Spar
It it takes the shape of the container, it can not be a solid. So, that narrows it down to being a liquid or a gas. A gas is easily compressed, so, the answer is most likely it is a liquid. Caveat: liquids can be compressed, but not easily.
Its called a compass and it always points in the direction of north so you can easily determine your relative direction to the north.
Obsidian because it's the only mineral that is the blackest of well......black! Anyway it's black I mean Obsidian (\_/) (o.o) (___)o
Hardness is the measure of how easily a mineral is scratched.
Talc is the softest mineral and can be scratched by any other mineral.
hardness
hardness
no
hardness is how easily a mineral can be scratched
The term for this is "hardness".
Galena, i thinx
Hardness
You think probable to talc.
mica
Gypsum