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Crystal Systems

Crystal Systems. 6 Major Crystal Systems Cubic Tetragonal Orthorhombic Monoclinic Triclinic Hexagonal. Cubic. Three axes of equal length intersect at 90 degree angles Example would be Halite. Tetragonal. Three axes intersect at 90 degree angles. Two of the axes are equal in length

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Crystal Systems

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  1. Crystal Systems • 6 Major Crystal Systems • Cubic • Tetragonal • Orthorhombic • Monoclinic • Triclinic • Hexagonal

  2. Cubic Three axes of equal length intersect at 90 degree angles Example would be Halite

  3. Tetragonal Three axes intersect at 90 degree angles. Two of the axes are equal in length An example would be zircon

  4. Orthorhombic Three axes, each of a different length, intersect at 90 degree angles An example would include topaz

  5. Monoclinic Three axes, each of a different length, intersect, with two of the intersections at 90 degree angles and the third at an oblique angle An example would include gypsum

  6. Triclinic Three axes, each of a different length, intersect at oblique angles An example would be talc

  7. Scarcity of Minerals • Minerals are nonrenewable • Supply and demand control the price of minerals • Not all minerals are local and have to be shipped in from other countries • On average, each US citizen consumes about 40,000 pounds of new minerals a year

  8. Renewable Resources

  9. Nonrenewable Resources

  10. World Mineral Resources

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