opening quiz for unit 2 get out you esrt and a piece of paper the following questions are from...
TRANSCRIPT
Opening quiz for unit 2
Get out you ESRT and a piece of paperThe following questions are from your
ESRT.You’ll have a minute per question…
Question 1
On page 16 of your ESRT what are the two main types of Luster?
Question 2
I am a mineral that in nonmetallic, has a hardness of around 3 and my chemical formula is CaCO3.
Question 3
On page 6 of your ESRT What two types of environments of igneous rocks are there.
Question 4
Looking at page 7 in your ESRT what is the grainsize of Sandstone?
Answers
1. what are the two main types of Luster?1. Nonmetallic and metallic
2. nonmetallic, has a hardness of around 3 and my chemical formula is CaCO3
1. Calcite
3. What two types of environments of igneous rocks 1. Intrusive and extrusive
4. what is the grain size of Sandstone 1. 0.2-0.006cm
Rocks & Minerals
The Building Blocks of society
MineralsLesson 1
Jewelry, computers, walls, and more
MineralsLesson 1
What is a mineral?
How are Minerals different from rocks?
How are minerals formed?
How are minerals identified?
What is a mineral?
Object that’s:1. formed naturally2. Solid3. internal
arrangement of atoms
4. inorganic
Minerals
There are 1000’s of minerals out there but only a few dozen common ones.
How are minerals different from rocks?
Atoms form minerals
Minerals form rocks
Organized Internal Arrangement Of atomsIAOA
Crystals StructureTetrahedron
How are minerals formed?
Minerals from solution
Cooling of magma
Heat and Pressure
How are minerals formed?
Precipitation from solution
How are minerals formed?
Evaporation from solution
How are minerals formed?
Cooling of magma
How are Minerals identified?
physical properties: color, hardness, cleavage, fracture, streak, and luster
chemical properties: reaction to acid
Mineral properties
ColorLusterTextureStreakHardnessCleavage / FractureDensityOther
How are Minerals identified?
Color not a good identifier.
Some minerals have different colors
Different minerals can have the same color
How are Minerals identified?
Luster how the mineral reflects light.– Metallic – Nonmetallic
How are Minerals identified?
streak color of a mineral in its powdered form
How are Minerals identified?
Hardness is based on the internal arrangement of atoms
Strong bonds mean hard minerals
Diamond = 10
Talc = 1
How are Minerals identified?
Cleavage flat, smooth, shiny, surfaces occur along weak atomic bonds
How it breaks (in shapes)
How are Minerals identified?
fracture uneven, rough surfaces
Breaks randomly
How are Minerals identified?
Reaction to acid chemical reaction to acid confirms calcite
Feel Soapy, greasy, etc.
Magnetismmagnetic properties
Reacts to Ultraviolet light
Some minerals that glow?
Let’s make some minerals
We will melt down some bismuth into lava.
Then I will cool it down slowly.Last I will drain away any extra lava