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.
Oxides and Hydroxides
Quartz is an Oxide Mineral.
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.
Zinc is a metal element and is not classified under a specific mineral group. It is commonly found in nature as the mineral sphalerite, which is a zinc sulfide.
Emerald
Emerald is a mineral. Specifically, it is a variant of the mineral known as beryl.
It is the Emerald.
The mineral is Beryl.