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Slide No. 1

1. crystalline structurealurtan.2

3. inorganic

Family of Miner sla

haw,oS t is the difference among andaeg m, crystal, mineral?

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Properties of Minerals1. crystal form2. fracture and cleavage3. hardness4. specific gravity5. color6. streak7. luster8. reaction to acid9.10. taste

magnetism

11. tenacity (resistance to breakage)12. transmission of light

talc

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Slide No. 3

Minerals are formed in specific conditionsSome minerals are related to sedimentary, igneous, and metamorphicrock formation.

.

Where are minerals found?

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Slide No. 4

ELEMENTS

Chemical Groupings

Native MineralsSilicatesulfatesS

Sulfidessnatearbo

esCBoratPhosphatesOxide

dess

Hali

COMPOUNDS

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Slide No. 5

NativeMinerals

appearance and physicalproperties are same as theelement

Gold

reppoC

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Quartz

divided on the chemical structureno generalization of properties

Peridot

NeSorosilicates - groupCyclosilicates - ringInosilicates - chainPhyllosilicates - sheetTectosilicates -

osilicates -isolateds

framework

Silicates

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Slide No. 7

Carbonatesminerals are usually soft,bright in color, andeffervescence with acid

MalachiteAzurite

Calcite

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Slide No. 8

Halides

structures are usually simple,low specific gravity, light in color,high solubility, soft

Halite

Fluorite

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Slide No. 9

Sulfides

Bornite

PyriteMinerals usually soft,high specific gravity, with ametallic luster

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Slide No. 10

Celestite

Gypsum

Sulfates

soft, light in color,high specific gravity,soluble in water

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Slide No. 11

Borateslight in color, optical properties

Borax Okenite

Coleminite

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Slide No. 12

Oxides

hard, heavy,

Hematite

Corundum

opaque, bright in luster

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Slide No. 13

Apatite

Brazilianite

Phosphates

variable characteristics,medium weight and dark color,rare