Do minerals have structure?

Do minerals have structure?

The structure of minerals is often seen in the shape of crystals. The law of constancy of interfacial angles — Angles between the same faces on crystals of the same substance are equal. This is a reflection of ordered crystal structure (See figure 5.5 in the textbook).

Does mineral have definite chemical structure and composition?

A Mineral is defined as an inorganic, naturally occurring, homogenous solid, with a definite chemical composition, and ordered (crystalline) atomic structures.

What does it mean that a mineral has a definite composition?

What does it mean when we say that a mineral has definite chemical composition? It means that a mineral always contains certain elements in definite corportions.

Is a mineral a molecule?

Just as chemical elements are made up of atoms, a chemical compound is made up of molecules. The atoms in a mineral are arranged in an organised ‘atomic structure’. They connect together to form molecules, and the molecules stack together in a regular pattern to form a crystal.

Are all minerals have crystal structure?

Minerals are inorganic, naturally occuring substances that have crystalline structures. So it is a prerequisite to be a crystal in order to be a mineral. All minerals, therefore, form crystals.

What are the characteristics of a mineral?

Most minerals can be characterized and classified by their unique physical properties: hardness, luster, color, streak, specific gravity, cleavage, fracture, and tenacity.

What are the characteristics of minerals?

What is the external morphology of a mineral?

The external morphology of a mineral is an expression of the fundamental internal architecture of a crystalline substance—i.e., its crystal structure.

How are the different types of minerals classified?

Identify the groups in which minerals are classified and their characteristics. Minerals are categorized based on their chemical composition. Owing to similarities in composition, minerals within a same group may have similar characteristics. What is a Mineral?

What are the physical properties of a mineral?

The physical properties of minerals include: Color: the color of the mineral. Streak: the color of the mineral’s powder. Luster: the way light reflects off the mineral’s surface. Specific gravity: how heavy the mineral is relative to the same volume of water. Cleavage: the mineral’s tendency to break along flat surfaces.

Can a mineral be formed by an organic process?

usually inorganic, although a mineral can be formed by an organic process. A mineraloid is a substance that satisfies some, but not all of the parts of the definition. For example, opal, does not have a characteristic crystalline structure, so it is considered a mineraloid.