Identifying Minerals - A

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A mineral's streak can be found by rubbing the mineral against a piece of unglazed porcelain called a _____ _____.

A mineral's streak can be found by rubbing the mineral against a piece of unglazed porcelain called a STREAK PLATE.

The breaking of a mineral along either curved or irregular surfaces.

Fracture

A measure of the ability of a mineral to resist scratching.

Hardness

Impurities and weather can effect _____.

Impurities and weather can effect COLOR.

The way in which a mineral reflects light.

Luster

Minerals have _____, _____, or _____ luster.

Minerals have METALLIC, SUBMETALLIC, or NONMETALLIC luster.

Some properties are particular to only a few types of ______.

Some properties are particular to only a few types of MINERALS

The color of the powder of a mineral.

Streak

The color of a mineral's streak is _____ always the same (as the) color of the mineral sample.

The color of a mineral's streak is NOT always the same (as the) color of the mineral sample.

The greater a mineral's _____ to being scratched is, the higher the _____ rating is.

The greater a mineral's RESISTANCE to being scratched is, the higher the MINERAL'S rating is.

The mark left on the streak plate is the _____.

The mark left on the streak plate is the STREAK.

The ratio of an object's density to the density of water is called ______ ______.

The ratio of an object's density to the density of water is called SPECIFIC GRAVITY.

The same _____ can come in a variety of _____.

The same MINERAL can come in a variety of COLORS.

The streak is a _____ layer of _____ mineral.

The streak is a THIN layer of POWDERED mineral.

Why can quartz be found in a variety of colors?

The various types and amount of impurities affect the color.

The way a mineral _____ is determined by the arrangement of its _____.

The way a mineral BREAKS is determined by the arrangement of its ATOMS.

When a mineral is dull, its luster is either _____ or _____.

When a mineral is dull, its luster is either SUBMETALLIC or NONMETALLIC.

When a mineral is shiny, it has a _____ luster.

When a mineral is shiny, it has a METALLIC luster.

When you san an object is _____ or _____, you are describing its _____.

When you san an object is SHINY or DULL, you are describing its LUSTER.

The splitting of a mineral along smooth, flat surfaces.

Cleavage

Color is not a good way to identify a mineral because there cane be a mineral that looks _____ the same but is _____ on the inside.

Color is not a good way to identify a mineral because there cane be a mineral that looks EXACTLY the same but is DIFFERENT on the inside.

The ratio of the mass of a substance to the volume of the substance. (The measure of how much matter is in a given amount of space.)

Density

Density is usually measured in _____ per cubic _____.

Density is usually measured in GRAMS per cubic CENTIMETER

Different types of _____ break in different ways.

Different types of MINERALS break in different ways.

Besides impurities, what other factors can change the appearance of minerals?

Exposure to air and water can change the color of a mineral.

Using _____ is more reliable than using _____ in identifying a mineral.

Using STREAK is more reliable than using COLOR in identifying a mineral.

Water has a density of _____ g/cubic cm.

Water has a density of ONE g/cubic cm..

Give an example of a mineral that comes in different colors.

Quartz

To determine hardness of minerals, scientist use ____ _____ _____.

To determine hardness of minerals, scientist use MOHS HARDNESS SCALE.

To identify some properties, you will need _____ equipment.

To identify some properties, you will need SPECIALIZED equipment.


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