Introduction to Minerals and Rocks During this presentation, record the names of minerals and rocks in a DIFFERENT color! If your answer is wrong, change.

Introduction to Minerals and Rocks

During this presentation, record the names of minerals and rocks in a

DIFFERENT color!

If your answer is wrong, change it!

Station 1

• Name A: Talc• Name B: Quartz

• Hardness Test

Station 2

• General Shape: Cube• Name: Halite

• Cleavage: the tendency to break along flat surfaces

Station 3

• Petrified Wood

• Fallen wood buried in mud, ash, etc.

• Oxygen deprived and cannot decay

• Organic materials break down and create void

• Void gets filled with minerals and they crystallize

Stations 4 - 6

• Station 4: Sandgrains– Name: Sandstone

• Station 5: fossils

• Station 6: Smells like matches (sulfur)

Station 7

• Used for scouring pads

• Name: Pumice

• Extrusive Igneous Rock

Station 8

• Name: Galena

• Lead is extracted from galena

Station 9

• B is more densely packed

• Name– A: Feldspar

– B: Galena

Station 10

• Used for baby powder• Used to be called

“soap stone” because it is slippery

• Name: Talc

Station 11

• Special property: Magnetic

• Name: Magnetite

Station 12

• One drop of HCl resulted in the rock “fizzing”

• Acid Test

• Name: Calcite

Station 13

• Rock is called “fool’s gold”

• It contains iron• Name: Pyrite

Station 14

• You saw a double image of the word “science”

• Due to double refraction

• Name: Iceland Spar (Calcite)

Stations 15 & 16

• Station 15: Crystals formed with air pocket then solidified– Name: Geode

• Station 16: Clams in the mud caused the holes– Name: Mudstone

Stations 17 & 18

• Station 17: Gold ore taken from Homestake Mine in South Dakota

• Station 18: Copper, but turns green when it reacts with oxygen (i.e. Statue of Liberty)

Station 19

• (a) Red granite from Marathon City

• (b) Drilled for blasting

Station 20

• Names: Chert and Obsidian

• Used to be called volcanic glass

• Used for arrows and tools

Station 21

• (a) Coal• (b) Used for fuel/heat

Stations 22 - 24

• Station 22: Agate• Station 23: Iron• Station 24: Animals,

corals, sponge

Stations 25 - 26

• Station 25– Metal: Aluminum

– Mineral: Bauxite

• 26: – Used to be used for

chalkboards

– Name: Slate

Stations 27 - 28

• 27: Shark tooth

• 28: Water erosion

Station 29

• From Cave: Dripping from ceiling

• Name: Stalactite• (tight to the ceiling)

Station 30 - 33

• 30: Graphite (not lead), used for pencils

• 31: Chalk• 32: Sulfur• 33: Copper ore

Stations 34 - 38

• 34: Rocks, not bones.• 35: Formed with gravel,

pebbles– Name: Conglomerate

• 36: Rocks rubbed by water• 37 Found in a cave

– Name: Stalagmites– (might grow up to the

ceiling)

• 38: Holes are probably caused by clams in mud– Name: Mudstone

Station 39

• Station 39:

• It is a sedimentary rock. We know this because of the stratification (layering) seen in this rock.

Station 40

• It floats because it is less dense than water.

• When it was formed, gas was trapped inside while the magma and other pyroclastic materials solidified quickly.