Minerals Chapter 3 pg 66 - 91 Tuesday, October 25, 2011
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MineralsChapter 3 pg 66 - 91
Tuesday, October 25, 2011
Properties of MineralsChapter 3: Section 1
5 properties of ALL MINERALS
Naturally Occurring
Made by nature; not manmade
Tuesday, October 25, 2011
Properties of MineralsChapter 3: Section 1
Inorganic
Was never a living thing
Solid
at room temp.
Tuesday, October 25, 2011
Properties of MineralsChapter 3: Section 1
Crystal Structure
Particles line up in specific order
Repeating pattern - Atoms
DiamondKaoliniteTuesday, October 25, 2011
Atoms
Atom
basic unit of matter
all things made from
Protons, Neutrons, & Electrons
Tuesday, October 25, 2011
Properties of MineralsChapter 3: Section 1
Definite Chemical Structure
A Mineral is always made of:
Same specific elements
Same amount of each element
Tuesday, October 25, 2011
Is the object a Mineral?
Is it Naturally Occurring?
Is it Inorganic?
Is it a Solid?
Does it have a Crystal Structure?
Does it have a definite chemical composition?
Tuesday, October 25, 2011
7 ways toIdentify a Mineral
Chapter 3 pg 68 - 737 ways to identify a specific mineral
Color
Easiest to see, but least helpful
Same mineral can show more than one color
Pollution = color changes
Tuesday, October 25, 2011
7 ways toIdentify a Mineral
Chapter 3 pg 68 - 73
Streak
Color of the inside powder
Can be different than outside color
Find by scratching on streak plate
Tuesday, October 25, 2011
7 ways toIdentify a Mineral
Chapter 3 pg 68 - 73Luster
How Shiny something is
Metallic
Shiny or Dull
Non-Metallic
Shiny or DullTuesday, October 25, 2011
7 ways toIdentify a Mineral
Chapter 3 pg 68 - 73
Density
Specific density for each mineral
D = M / V
Tuesday, October 25, 2011
7 ways toIdentify a Mineral
Chapter 3 pg 68 - 73
Hardness
Resists scratching
Find by scratching on other substances
Mohs Hardness Scale
Tuesday, October 25, 2011
Fingernail (2.5)
Penny (3.5)
Steel File (6.5)
Glass (5.5)
Nail (4.5)
Streak Plate (7.0)
Tuesday, October 25, 2011
7 ways toIdentify a Mineral
Chapter 3 pg 68 - 73
Crystal Structure
Shape made by Atoms repeating
Tuesday, October 25, 2011
7 ways toIdentify a Mineral
Chapter 3 pg 68 - 73
Element
Made of one Atom - pure substance
Compound
More than one atom together- chemically
Mixture
objects physically togetherTuesday, October 25, 2011
7 ways toIdentify a Mineral
Heterogenous Mixture
can see the different substances in mixture. (chex mix)
Homogenous Mixture
Substances appear as one. (milk)
Tuesday, October 25, 2011
7 ways toIdentify a MineralIntensive Property
does not matter the size of the sample you measure
Extensive Property
the amount that you measure changes the answers
Tuesday, October 25, 2011
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