Question

What are halides? What are some examples of them?

Answer 1

Hint : The minerals are classified on the basis of their chemical properties. The only exception is for the native element class because for them the chemical basis for classifying minerals is the anion, the ion with negative charge that usually appears at the end of the formula of the mineral.

Complete Step By Step Answer:
As we know that the minerals are classified according to their chemical properties, so there are different classes of minerals such as:
Sulfides: These are normally based on the ion of sulfide like ${{S}^{2-}}$. Some examples iof sulfides are pyrite ($Fe{{S}_{2}}$), galena ($PbS$) and also sphalerite ($ZnS$) when it is in pure zinc form. Some of the sulfides are also mined as the sources of such metals such as zinc, lead and tin.
Carbonates: These are basically based on the ion of carbonate which is $C{{O}_{3}}^{2-}$. Some examples of carbonate minerals are Calcite and dolomite. Carbonate minerals also tend to dissolve very easily in water, especially in the acid water, and we all know that the natural rain water is slightly acid in nature.
Oxides: These are normally based on the anion of oxygen that is ${{O}^{2-}}$. Some examples of oxides are iron oxides such as hematite and magnetite and also the pyrolusite (MgO).
Phosphates: They generally have the polyatomic phosphate ion as the anion which is $P{{O}_{4}}^{3-}$. An example of phosphate mineral is Fluorapatite which makes our teeth hard.
Halides: These are the Halogen compounds as they consist of a Halogen anion which is also called a halide ion and a cation as well. Some examples of Halide are Sodium Chloride, Hydrogen Iodide, Methyl Chloride and many more.

Note :
Native elements are nothing but a single element. As an example for some native element minerals we can consider Gold (Au), native copper (Cu), and diamond and graphite and they are all made of carbon.