I'm not sure because it's unknown.
Ask a science teacher.
Minerals are tested for hardness by performing a scratch test. The unknown mineral is scratched with another object that the hardness is known. For example, a unknown mineral may be scratched with a piece of metal to compare the resistance.
with radio waves
mineral content
Its still unknown to all mankind if there was someone they would be dead by now
bacially it has a hard harness.
santa clause
Minerals are tested for hardness by performing a scratch test. The unknown mineral is scratched with another object that the hardness is known. For example, a unknown mineral may be scratched with a piece of metal to compare the resistance.
No. Gold is an element.
massvolume
You do not provide enough information for us to answer this question.
I want to discover a previously unknown planet with my new telescope.
the mineral mixtures are unknown ...
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The unknown mineral is not a mineral, or the pieces being scratched or doing the scratching are not freshly fractured or cleaved surfaces.
Search for unknown, new mineral resources.
with radio waves