Minerals play an important role in forming rocks and shaping Earths surface When humans began making tools out of iron great progress was made in advancing the world through industries Below is a timeline showing how the value and uses of minerals have changed over time ID: 650513
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Minerals are important to human wealth and welfare:
Minerals play an important role in forming rocks and shaping Earth’s surface. When humans began making tools out of iron great progress was made in advancing the world through industries Below is a timeline showing how the value and uses of minerals have changed over time .Slide2Slide3
SOME MINERALS AND THEIR USES
:
Talc
is used in powders and make-upGypsum is used in drywall or sheetrockFluorite is used in toothpasteQuartz (found in sand) is used in making glassSlide4
Topaz
is a gemstone
Corundum
is a gemstone (rubies and sapphires)Diamonds are used in cutting tools and drillsSlide5
Copper
is used in electrical wiring, jewelry and
coins
Halite
is used to deice roads, and to season/preserve foodCalcite is used in tums to help acid indigestion and in cementSlide6
ORES AND WHAT THEY ARE MINED FOR:
An
ore
is a mineral that is mined and the useful substances in it are removed and then sold for a profit. Protective shielding against X rays and used in batteries
Galena: an ore of lead
Graphite: an ore of pencil “lead” and is also a dry lubricantSlide7
Pyrite
: ore of iron, is also known as “fool’s gold
”
Magnetite
: iron oreHematite: an ore of iron and the red pigment used for color
Most automobiles, machine tools, the hulls of large ships, building parts and machine parts are made out of iron.
Steel
is made by combining
IRON
with
other metals. Stainless steel is used in building parts, cooking pots and pans, cutlery and surgical equipment. It is also used in aircraft and automobilesSlide8
Sulfur is also an ore:
match heads, fireworks,
medicine, gunpowder and fertilizer
.Sulfur is used to vulcanize rubber.
Vulcanization
makes rubber tougher. It ensures that rubber maintains its shape.Car
tires, shoe soles, water/ air hoses and ice hockey pucks are all made from vulcanized rubberSlide9
MINERALS AND THEIR SPECIAL PROPERTIES:
Calcite:
has double refraction and fizzes with
HClHalite: tastes saltySulfur: has a rotten egg odorSlide10
Magnetite & hematite:
are
magnetic
Calcite & Fluorite:
fluorescenceTalc & Graphite: feels greasySlide11
Metallic
minerals like gold, silver & copper:
are easily shapedSlide12
VIRGINA’S MINERAL
Virginia mines a lot of gravel for roads and construction
The oldest and largest
Kyanite
mines are located in VA.
Kyanite is a silicate that is blue and is used in the production of ceramics, cookware and
jewerly.