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Abundance Tests Chemical Formulas

Minerals Chapter 3 Info.

Miscellaneous

There are over ___ different minerals in the Earth’s crust.

A 100

> 3000

A 100

The most abundant group of minerals in the Earth’s crust.

A 200

Silicates

Be able to name two!

A 200

Most abundant elements in the Earth’s crust.

A 300

Oxygen and Silicon

See a connection?

A 300

Some rare minerals will display this property under a

black light:

A 400

Fluorescence

A 400

Gems, in addition to being beautiful, must be ______.

A 500

RARE

A 500

Which test is more reliable in identifying a mineral; streak

or color?

B 100

Streak

Know a mineral with different color/streak, and one with

similar.B 100

What do you use to find streak and what is its

hardness?

B 200

Unglazed porcelain streak plate 6.5

B 200

Describe how to find specific gravity and the units you use.

ESSAY QUESTION: How would you find specific

gravity and what units would you use throughout? 8 pts.

B 300

Find density, compare it to water and drop the units.

D = m/v

B 300

What does a mineral’s crystal size tell us?

B 400

How quickly it cooled from magma or lava.

B 400

Name three types of luster.

B 500

Various responses.

Know “5” total?

B 500

What is the chemical formula for hydrochloric acid?

C 100

HCl

C 100

What is the chemical formula for any silicate?

C 200

SiO2

C 200

What is the chemical formula for calcite and how do we test

for it?

C 300

CaCO3

Acid test - effervescence

C 300

DAILY DOUBLE

C 400

DAILY DOUBLE

Place A Wager

What is the entire chemical formula for reaction between calcite and hydrochloric acid?

C 400

CaCO3 + HCl => H2O + CO2

Know products and reactantsC 400

A mineral with the same chemical formula but is rare and beautiful is a _______.

C 500

Gem

Hint: Know one gem and its common form.

C 500

Name two minerals on Moh’s scale and give their hardnesses.

D 100

See Moh’s scale

D 100

How hard is a mineral that can NOT be scratched by

your fingernail.

D 200

> 2.5

Know the hardness of fingernail, glass and streak plate

D 200

Name the four characteristics that all minerals share.

D 300

Inorganic

Natural

Solid

Definite chemical formula

D 300

A mineral mined for a profit that is useful is an ______.

D 400

Ore

How do we separate the mineral from the ore?

D 400

What does hardness measure?

D 500

How easily a mineral can be scratched.

D 500

Name a mineral and its gem form.

E 100

Various answers

And no, you may NOT use topaz and topaz.

E 100

Name a mineral that is also an element.

E 200

Various answers

Hint: these are known as NATIVE minerals.

E 200

How could you tell the difference between pyrite and

gold?

E 300

Streak, hardness.

E 300

What property is defined as the color of a mineral in its

powdered form?

E 400

Streak

E 400

Name two minerals and their uses.

E 500

Various answers

E 500

Using a black light, we were looking for what physical

property?

F 100

Fluorescence

F 100

Looking through Icelandic spar, what physical property

can be observed?

F 200

Double refraction

F 200

Name a mineral that comes in many colors.

F 300

Our class examples were calcite, fluorite and pyrite.

F 300

How much harder is a mineral with a hardness of 8,

than a mineral with a hardness of 7?

F 400

Ten times harder!

F 400

What is the specific gravity of a mineral that sinks in water?

F 500

Greater than 1.0

(Which means its density is greater than 1.0 g/cm3

F 500

The Final Jeopardy Category is:

Minerals (obviously)

Please record your wager.

Click on screen to begin

Quick…how many rocks were at the Acid Station?

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None!!! They were all minerals!

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Thank You for Playing Jeopardy!

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