Emerald is a mineral rather then a rock (rocks are made of minerals). Emeralds are a variety of the mineral beryl.
The halide mineral group.
Quartz is an Oxide Mineral.
Oxides and Hydroxides
Silicates are the most common mineral group.
Emerald belongs to the beryl mineral group, which is a type of ring silicate mineral. Other minerals in this group include aquamarine, morganite, and heliodor, all of which have different colors due to impurities.
It is not a mineral
Emerald is a mineral but it is not an acid.
Emerald is a mineral, not a rock.
An emerald is a mineral.
Emerald is made of the mineral beryl, although it is a gemstone. It has trace amounts of chromium and sometimes vanadium.
Emerald is a mineral rather then a rock (rocks are made of minerals). Emeralds are a variety of the mineral beryl.
native if that is a mineral group
Emerald
Emerald is a mineral. Specifically, it is a variant of the mineral known as beryl.
It is the Emerald.
The mineral is Beryl.