Mineral resources 1

How atoms are constructed  Atomic number is the number of protons in an atom's nucleus... Minerals  Major Mineral groups • Most common mineral group • Contain the silicon-oxygen te

Minerals: the building

Periodic table of the Elements

How atoms are

constructed

 Nucleus – central part of an atom that contains

• Protons – positive electrical charges

 Energy levels, or shells

charges

Simplified view of the atom

How atoms are

constructed

 Atomic number is the number of

protons in an atom's nucleus

How atoms are

constructed

 Isotopes

the neutrons plus protons

energy and particles

magnetism, double refraction)

Crystal Form

Luster

Cleavage

Streak

Hardness

Cleavage

Fracture

Other PropertiesCrystal Form

The mineral quartz often exhibits good crystal form

Pyrite (fool’s gold)

displays metallic luster

Three examples of perfect cleavage – fluorite, halite,

and calcite

Conchoidal fracture

rock-• Most abundant atoms in Earth's crust:

Minerals

 Major Mineral groups

• Most common mineral group

• Contain the silicon-oxygen tetrahedron

• Four oxygen atoms surrounding a much

smaller silicon atom

• Feldspars are the most plentiful mineral group

• Crystallize from molten material

Minerals

 Mineral groups

• Rock-forming silicates :

• Olivine – independent tetrahedra

• Pyroxene group – tetrahedra are arranged

in chains

in chains

• Amphibole group – tetrahedra are arranged

in double chains

Hornblende – a member

of the amphibole group

Minerals

 Mineral groups

• Micas – tetrahedra are arranged in sheets

Biotite and Muscovite

• Feldspars - Blocky

• Two types- Orthoclase and Plagioclase

• Quartz –

Potassium feldspar

Plagioclase

feldspar

Major Mineral groups:

 Nonsilicate Mineral Groups:

Sulfides

 Carbonates

• A major rock-forming group

• Found in the rocks limestone and marble

• Evaporites

• Many have economic value

Native Copper

Some common non-silicate

minerals

Mineral resources

be mined at a profit

influence a resource

An underground halite (salt)

mine

The Bingham copper

mine in Utah

Formative Mineral Quiz

Directions:

and number 1-17

 For each slide, identify the

mineral either based on how it

looks or on the clue given.

ones you need study more!

Concoidal Fracture

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IDENTIFY IT!

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HCL Test (fizzing)

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Double Refraction

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IDENTIFY IT!

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Perfect Cleavage (3 at 90 deg.)- NO THER HINTS!

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Definitely not gold… unless

you’re a fool.

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Streak Test

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Magnetic… but the streak is

throwing me off

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Uber Magnetic

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Filmy… Flat… White…

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Black Black starts with B.

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Metallic mineral Ugly color.

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Looks like Pyrite… but its not

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Speckled Reacts with Acid

when powdered

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