Large well shaped crystals tend to form from

magma that cooled slowly in an unrestricted place

lava that cooled slowly in an unrestricted place

lava that cooled quickly in an unrestricted place

magma that cooled quickly in an unrestricted place

What factors should be considered before mining a newly found mineral deposit?

environmental impact of the mine

Some fossils are preserved in limestone. Are these fossils minerals?

No, because they were once living

yes, because they are preserved in rocks.

Yes, because they formed as the result of Earth processes.

No, because limestone is a rock.

Water, in its liquid form, is one of the most common substances on Earth, yet it isn't a mineral. Why?

it is made of two gases: Hydrogen and Oxygen

it covers nearly three quarters of Earth

it cannot be made in laboratories

Identification tests for minerals are based on their?

physical and chemical properties

Use the table below. List the six minerals in order from the most dense to the least dense.

gold,pyrite,apatite,garnet,corundum,beryl

beryl,corundum,garnet,apatite,pyrite,gold

gold,beryl,pyrite,corundum,apatite,garnet

pyrite, garnet corundum,gold,apatite,beryl

Use the table below to answer the following question: List the three diamonds from least to greatest according to carats.

Punch Jones, Theresa, Uncle Sam

Uncle Sam, Punch Jones, Theresa

Theresa, Uncle Sam, Punch Jones

Punch Jones, Uncle Sam, Theresa

Why would a diamond excavator want to convert the diamond measurement from carats to grams?

grams are a part of the SI system

grams are part of the English system of units

he doesn't want amayone else to be able to understand the weight

Why might mineral no longer be classified as an ore?

if the supply of the mineral changes

if the demand for the mineral changes

Silicon Valley Silicon(SI) is the second most abundant element in earth's crust, but we didn't hear much about it until Silicon Valley. It is present in measurable amounts in nearly every rock, in all natural waters, as dust in the air, in the skeletons, of many plants and some animals, and even in the stars. Silicon is never found in the free state like gold or silver , but is always with Oxygen(O), aluminum (Al), magnesium (Mg), calcium(Ca), sodium(Na), potassium(K), iron(Fe) or other elements in combinations called silicates. Silicates are the largest and most complicated group of minerals. Silicon is dull gray in appearance and has a specific gravity of 2.42. It has valence elections like carbon (C) and can form a vast array of chemical compounds like silicon carbide abrasive, silicon rubber and caulking oils and paints. Pure silicon is used in semiconductors as solar panels to generate electricity from light and in microchips for transistors. According to the text, what is the most challenging aspect of silicon?

it is never found in its free state

Silicon Valley Silicon(SI) is the second most abundant element in earth's crust, but we didn't hear much about it until Silicon Valley. It is present in measurable amounts in nearly every rock, in all natural waters, as dust in the air, in the skeletons, of many plants and some animals, and even in the stars. Silicon is never found in the free state like gold or silver , but is always with Oxygen(O), aluminum (Al), magnesium (Mg), calcium(Ca), sodium(Na), potassium(K), iron(Fe) or other elements in combinations called silicates. Silicates are the largest and most complicated group of minerals. Silicon is dull gray in appearance and has a specific gravity of 2.42. It has valence elections like carbon (C) and can form a vast array of chemical compounds like silicon carbide abrasive, silicon rubber and caulking oils and paints. Pure silicon is used in semiconductors as solar panels to generate electricity from light and in microchips for transistors. Why can it be said that the occurrence of silicon is universal?

Silicates make up 96% of the minerals present in Earth's crust

Silicates make up 9% of the minerals present in Earth's crust

Silicates cannot be found in Earth's crust

Silicon is not present in silicates

Chapter four Minerals

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MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Naturally occurring, inorganic solid with specific chemical composition and crystalline structure

d. mineral

a. crystal

b. gem

c. magma

e. ore

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Solid in which the atoms are arranged in repeating patterns

a. crystal

b. gem

c. magma

d. mineral

e. ore

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Molten material found beneath Earth’s crust

c. magma

a. crystal

b. gem

d. mineral

e. ore

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Mineral that contains silicon and oxygen

f. silicate

a. crystal

b. gem

c. magma

d. mineral

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Mineral that contains a useful substance that can be mined for profit

e. ore

a. crystal

b. gem

c. magma

d. mineral

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Valuable mineral prized for its rarity and beauty

b. gem

a. crystal

c. magma

d. mineral

e. ore

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

_______ is the color of a mineral when it is broken up and powdered

Streak

luster

fracture

cleavage

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Chapter four Minerals

Naturally occurring, inorganic solid with specific chemical composition and crystalline structure

Solid in which the atoms are arranged in repeating patterns

Molten material found beneath Earth’s crust

Mineral that contains silicon and oxygen

Mineral that contains a useful substance that can be mined for profit

Valuable mineral prized for its rarity and beauty

_______ is the color of a mineral when it is broken up and powdered

The tendency of a mineral to break along a smooth, flat plane is called________.

is the measure of how easily a mineral can be scratched

_____ is the tendency of a mineral to break with rough and daggered edges

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