mineral
Mineral
A jade is actually both a mineral and a rock.
mineral
An accessory mineral is a mineral present in small amounts in a rock, but not considered to be characteristic of the rock.
mineral
Mineral
A jade is actually both a mineral and a rock.
Pumice is an extrusive igneous rock, not a mineral.
My whetstone uses water, not oil. A diamond whetstone needs no lubrication.
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.
Limestone is a rock, composed mainly of the mineral calcite.
Cobalt is a mineral, not a rock.
mineral
mineral