In some rock, it is not possible to visually detect a mineral. Tests must be done to identify the minerals which compose the rock. Such tests would include: reaction to acids, specific gravity, texture, and color.
The rock used to find a mineral's streak color is unglazed porcelain.
an igneouus rock
in a cave
mineral
Mineral
the mineral is clay and there is no rock
It is a mineral or a number of minerals which are part of the composition of rock.
A mineral is a rock, so yes.
Magnetite is classified as a mineral, not a rock.
Magnetite is classified as a mineral, not a rock.
You can find flint rock at outdoor supply stores, rock and mineral shops, or online retailers that specialize in geological specimens. Additionally, you may be able to find flint rock in nature, such as in riverbeds or quarries.
Cobalt is a mineral, not a rock.