Rocks and Minerals

Prep

TRUE or FALSE?TRUE or FALSE?

All rocks are made of minerals.

What is the hardest minerals on the Mohs hardness scale??

Diamond

What type of properties are best to identify minerals?

Characteristic properties

Crystalline structure, reaction with acid, hardness, transparency, luster

Properties like size, shape, color, mass…can change and don’t help

identify

A.

B.

C.

D.

E.

The scale ranking minerals from softest to hardest is called?

None of the above

Light refraction

Hard Rock ratings

Durability scale

Mohs hardness scale

TRUE or FALSE?TRUE or FALSE?

Rocks and minerals are used in construction, hygiene products, and decorations

A.

B.

C.

D.

E.

When you can see through a mineral sample, but the image is blurry, it is called…

glassy

opaque

transparent

translucent

brilliant

TRUE or FALSE?TRUE or FALSE?

Minerals are inorganic materials found naturally on earth

TRUE or FALSE?TRUE or FALSE?

Synthetic minerals are considered real minerals.

What profession studies rocks, minerals, and other inorganic parts of the earth

Geologist

How are igneous rocks formed?

The cooling of magma

How are metamorphic rocks formed?

Heat and pressure

How are sedimentary rocks formed?

Weathering, compacting, cementing

What is an intrusive igneous rock?

An igneous rocks that forms from the cooling of magma beneath the earth’s surface

What is an extrusive igneous rock?

An igneous rock that forms from the cooling of lava above the earth’s surface.

What is fracture?

When a mineral breaks in a ragged line

What is cleavage?

When a mineral breaks in a sharp line.

Dull, glassy, and brilliant are all used to describe a mineral’s …

Luster

TRUE or FALSE?TRUE or FALSE?

Rocks and minerals are renewable resources

What are some examples of igneous rocks?

Obsidian, granite, kimberlite, basalt, pumice

What are some examples of metamorphic rocks?

Slate, gneiss, marble

What are some examples of sedimentary rocks?

Limestone, coal, sandstone

TRUE or FALSE?TRUE or FALSE?

The law of superpostion states that older rocks are on the bottom.

What is the softest mineral on the Mohs hardness scale?

Talc

Draw out the rock cycle.

See next slide for answer

What is crystalline structure?

The organization of a specific set of atoms that are arranged in a repeating pattern

What is the difference between magma and lava?

Magma is molten rock beneath the earth’s surface.

Lava is molten rock above the earth’s surface.