ELAJ+4-1



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=Section 4-1 Properties of Minerals= = = = =

Vocabulary :

 * inorganic** - cannot be made from once living things
 * crystal** - the pattern of a minerals material that will form into a sold.
 * element** - a object made of a single atom.
 * compound** - two or more elements put together so they don't have their distinctive properties anymore.
 * streak** - the color of the minerals powder
 * luster** - how a minerals surface reflects light.
 * cleavage** - a property that lets a mineral split along flat surfaces
 * fracture** - is a rock breaking apart in a different way
 * fluorescence** - an uncommon property of being able to, glow an ultra purple

Outline:
Introduction What is a mineral? Identifying minerals
 * In a museums' hall of minerals
 * There are substances you never heard of.
 * Naturally Occurring
 * Inorganic
 * Solid
 * Crystal Structure
 * Definite chemical composition
 * Each mineral has its specific properies
 * Hardness
 * Color
 * Streak
 * Luster
 * Density
 * Crystal Systems
 * Cleavage and fracture
 * Special Properties
 * fluorescence
 * magnetism
 * radioactive
 * reacts chemically to acid
 * electrical properties