'Cubic crystals' diaporamas de présentation

Mineral Spectroscopy

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5.0 ?? 5.1 ?? , ??????? 5.2 ???????? 5.3 ????? 5.4 ???????? 5.5 ??

5. ???????. 5.0 ?? 5.1 ?? , ??????? 5.2 ???????? 5.3 ????? 5.4 ???????? 5.5 ??. Outline. General remarks Uniaxial cases Cubic crystals Why success limited. Decoupling of Spin from Orbit. Even for a spin-dependent Exc, such as Von Barth and Hedin ( 1972),

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Determination of Crystal Structure (Chapt. 10)

Determination of Crystal Structure (Chapt. 10). 1. Use the angular positions of the diffraction lines to determine the shape and size of the unit cell. ? Assume either cubic, tetragonal, orthorhombic, rhombohedral, hexagonal, monoclinic, or triclinic.

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Mineral Crystal Systems

Mineral Crystal Systems. Identification Tips and Hints. Isometric. Also called the Cubic Crystal System Examples: Halite Magnetite Pyrite. Hexagonal. Six-sided prisms When you look at the crystal on-end, the cross section is a hexagon.

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Mineral Crystal Systems

Mineral Crystal Systems. Identification Tips and Hints. Isometric. Also called the Cubic Crystal System Examples: Halite Magnetite Pyrite. Hexagonal. Six-sided prisms When you look at the crystal on-end, the cross section is a hexagon.

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Metallic Luster

Name _______________________. 3 perfect cleavages 90 o, silver gray, H 2.5, density D 7.6. Black, gray, or greenish black streak. Magnetic, black to dark gray H 6, D 5.2. Steel gray, soft marks paper, H 1, D 2. Golden Yellow tarnish purple, H 4 D 4.3. Metallic Luster.

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