Introduction to minerals

Introduction to minerals - Minerals: Building blocks of...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
Minerals: Building blocks of rocks Definition of a mineral: Naturally occurring Inorganic solid Ordered internal molecular structure Definite chemical composition Definition of a rock: A solid aggregate or mass of minerals
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Composition of minerals Elements Basic building blocks of minerals Over 100 are known (92 naturally occurring) Atoms Smallest particles of matter Retains all the characteristics of an element
Background image of page 2
The periodic table
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Composition of minerals Atomic structure Central region called the nucleus Consists of protons (positive charges) and neutrons (neutral charges) Electrons Negatively charged particles that surround the nucleus Located in discrete energy levels called shells
Background image of page 4
Idealized structure of an atom
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Composition of minerals Chemical bonding Formation of a compound by combining two or more elements Ionic bonding Atoms gain or lose outermost ( valence ) electrons to form ions Ionic compounds consist of an orderly arrangement of oppositely charged ions
Background image of page 6
Halite (NaCl) – An example of ionic bonding
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Composition of minerals Covalent bonding Atoms share electrons to achieve electrical neutrality Covalent compounds are generally stronger than ionic bonds Both ionic and covalent bonds typically occur in the same compound (bonds are seldom 100% ionic or covalent in character)
Background image of page 8
Covalent bonding – sharing of valence electrons
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 30

Introduction to minerals - Minerals: Building blocks of...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online