introduction to minerals and rocks during this presentation, record the names of minerals and rocks...
TRANSCRIPT
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.