Show:
Physical Properties 1
Physical Properties 2
Rules for being a Mineral
Physical Properties 3
Minerals
100
The minerals hornblende and magnetite are both black. Mrs. East told her students they could not use this physical property alone to ID an unknown mineral.
What is color?
100
non-living, never alive Example: minerals
What is inorganic?
100
Explain the relationship between rocks and minerals.
What is all rocks are made of minerals?
100
A mineral that has the physical property of fracture.
What is quartz?
100
The hardest mineral
What are diamonds?
200
A mineral sample of pyrite appears metallic when light hits its surface.
What is luster?
200
living, once alive Examples: paper, fossils
What is organic?
200
Real diamonds form as carbon crystals with rock. This process takes place without the aid of humans. Which rule does diamond formation follow?
What is found in nature?
200
What is a mineral that has the physical property of cleavage?
What is Mica?
200
The softest mineral
What is talc?
300
Calvin is using a penny, a knife, a steel file, and his fingernail to help ID minerals in his science class. One is scratched by the knife, but not by the steel file. So he rates this mineral as a 5 on a scale from 1 to 10. Which test has he performed?
What is hardness?
300
Calculate the density of an unknown mineral with a mass of 200g and a volume of 10ml. Hint: density= mass (g)/volume(ml)
What is 20g/ml?
300
James loves to eat rock candy. His dentist doesn't think that this is a good idea. Rock candy forms in repeated patterns similar to minerals with sharp edges and flat sides. This is an example of which rule for being a mineral?
What is crystal structure?
300
breaks in thin, flat sheets
What is cleavage?
300
A substance that is composed of decayed plant material that is used as fuel
What is coal?
400
Dustin observes a mineral that splits easily in smooth, flat sheets. He thinks its Mica.
What is cleavage?
400
Stacy is conducting a mineral ID test and sees a black powder left behind when the mineral is rubbed across a rough tile.
What is the streak test?
400
Cameron is classifying items in his Earth science class. He has gypsum, corundum, glass, plastic, coal, kittens, and paper. He places gypsum, corundum, glass, and plastic in category A. Coal, kittens, and paper are placed in category B. Which rules of mineral did he use to classify the items in category A?
What is inorganic?
400
breaks in jagged, uneven ways
What is fracture?
400
You perform a streak test everyday in class by doing this task.
What is a writing with a pencil?
500
Teresa drops a piece of quartz and notices that all the fragments have jagged, irregular edges. She knows this is an example of the physical property called __________.
What is fracture?
500
Alyssa finds the mass of a mineral by using a balance, and then places the mineral in water to determine its volume. She then uses this information gathered to ID the unknown mineral. What is she calculating?
What is density?
500
When oxygen and silicon combine in nature, silicates form. These are the 20 minerals that form most of Earth's rocks. Silicates have a specific molecular formula, thus they are compounds. Which rule for being a mineral does this illustrate?
What is definite chemical composition?