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Minerals

Published on Nov 21, 2015

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PRESENTATION OUTLINE

1.

ANTIMONY

  • Lustrous, gray metalloid
  • Used in paints, glass, and pottery
  • Found in China
2.

APATITE

  • Usually green with white streaks and is a hexagonal crystal system
  • Often used in fertilizer
  • Found in India, Kenya, Brazil, Norway, South Africa, Mexico, Canada, and the U.S.
3.

BAUXITE

  • Warm colories, like pennies, with large dark spots on them
  • Main source of aluminum
  • Found in Australia
4.

CORUNDUM

  • Hexagonal crystal system; naturally transparent (if red, it is called ruby - if green it is called saphire)
  • Most famous use is jewelry
  • Found in Russia, India, Zimbabwe, and South Africa
5.

DOLOMITE

  • Ranges from white to pink; brittle; trigonal crystal system
  • Used in gardening and aquariums to buffer pH level
  • Found in the U.S., Canada, Switzerland, Spain, and Mexico
6.

FELDSPAR

  • Low symmetry; crystals tend to twin; rather dull luster; often blocky
  • Used in industrial applications for their alumina and alkali content
  • Found in Europe
7.

GALENA

  • Bright silver with metallic luster
  • Used as a source of lead
  • Found in England, British Columbia, and Australia
8.

GYPSUM

  • Soft sulfate mineral; colorless to white;
  • Used in sheetrock
  • U.S. and Mexico
9.

MICA

  • Monoclinic crystal habit; pseudohexagonal crystal system; similar in compolistion
  • Used in electronic insulators; ground in paint, joint cement, and dusting agents
  • North America
10.

MALACHITE

  • Monoclinic crystal system; opaque; green banded
  • Used as ornamental stone
  • Found in Russia
11.

OLIVINE

  • Yellowish green; orthorhombic crystal system
  • Used to make refractory brick and as a casting sand
  • Found in Egypt, South Africa, Russia, and Norway
12.

PYRITE

  • Metallic luster; pale brass-yellow hue; (fool's gold)
  • Used for production of sulfur dioxide for use in such applications as paper
  • Found in Europe and Australia
13.

TALC

  • Earthy colors (brown, green, gray); mono/triclinic CS; waxlike or pearly
  • Used in plastics, ceramics, paint, paper, cosmetics, and roofing material
  • Found in China
14.

TUNGSTEN

  • Gray; lustrous; solid element
  • Used for filaments for electric lamps and very popular for rings
  • Found in China, Canada, and Russia
15.

AUGITE

  • Dull colors; commonly stubby prismatic crystals
  • Used as ornamental gems
  • Found in Italian volcanoes (how awesome)
16.

BARITE

  • Transparent to opaque; tabular parallel base crystal habit; brittle; orthorhombic
  • Used in paper and rubber
  • Found in Brazil, Nigeria, Canada, Chile, China, India, Greece
17.

CALCITE

  • Crystalline; brittle; transparent to translucent
  • Used in limestone, marble, cement and concrete
  • Found in Brazil, Germany, Romania, England, Canada, China, Mexico, Russia
18.

CHALCOPYRITE

  • Copper iron sulfide; tetragonal CS; brittle; metallic; opaque
  • Used in pipes, coins, brass, and for meditation purposes
  • Found in Norway, the U.S., Australia
19.

HALITE

  • Cubic crystal system; brittle; clear, white; transparent; vitreous
  • Used as salt...it actually is salt
  • Found in most countries which have a sea coast
20.

LIMONITE

  • Brown and yellow; no cleavage; uneven fracture; earthy luster; yellowish brown streak
  • Used in paint, clay, and paper
  • Found in Australia
21.

SERPENTINE

  • Earthy colors; rock forming hydrous magnesium iron phyllosilicate minerals
  • Used as a source of magnesium and asbestos and as decorative stone
  • Found in the U.S., Canada, China, England, Russia, Italy, and India
22.

SPHALERITE

  • Brown, yellow, red, green, black; perfect cleavage; uneven fracture
  • Used as a major source of iron
  • Found in Australia, Burma, Germany, England, Italy, Spain, Peru
23.

HEMATITE

  • Metallic gray; trigonal; no cleavage; uneven fracture; brittle tenacy; metallic/splendent luster
  • Used as jewlry, a source of iron, and feng shui cure for home and office
  • Found in Canada, Australia, Africa, Europe, and Asia
24.

TURQUOISE

  • turqoise; white streak; waxy, dull luster; no cleavage; britte; triclinic
  • Used as jewlry and as ornamental stone
  • Found in the U.S., Mexico, Iron, Chile, China, and Tibet
25.

DIAMOND

  • Yellow, brown, grey to clear; cubic CS; perfect cleavage in 4 directions
  • Used mainly as jewelry but also as an abrasive
  • Found in Russia, Botswana, and South Africa

Matti Grace McIntyre