Rocks and mineral s

Card Set Information

Author:
margs10
ID:
136949
Filename:
Rocks and mineral s
Updated:
2012-03-04 18:31:24
Tags:
minerals
Folders:

Description:
rocks and minerals test
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  1. Augite

    greater than 5 1/2 but less than 7

    2 direction at about 90

    clevage
  2. biotite

    vitreous luster

    hard 2-2 1/2

    1 direction
  3. muscovite

    Nonmetallic-vitreous

    about 2 1/2

    1 direction clevage
  4. orthoclase

    • 2 direction @ 90
    • greath 5 1/2 less 7

    non - dull -virtreas
  5. quartz

    virtreous luster

    hardness 7

    • hexagonal crystals
    • conchoidal fracture
  6. plagioclase feldspar

    vitreous luster

    2 direction of clevage at 90

    stirations

    hard 6
  7. talc

    dull to vitreous luster

    greasy feel

    hardness 1
  8. garnet

    • vitreous luster
    • hardness 7.5
    • dodecahedral crystals
    • chonchoidal fracture
    • gypsum
    • dull vitreous silky pearly luster
    • hardness 2
    • clevage 3 not at 90
    • calcite
    • vitreous luster
    • hardness 3
    • clevage 3 not at 90
    • Chalcopyrite
    • sub metallic luster
    • hardness 4
    • specific gravity
  9. galena

    about 2 1/2 - 3

    3 direction about 90 clevage

    specific gravity
  10. magnetite

    • dull to submetallic
    • magnetic
    • moderate specific gravity
    • pyrite
    • mettalic luster
    • hardness 6- 6 1/2
    • gravity is moderate
    • hematite
    • dull to metallic luster
    • hardness 1-6
    • flurorite
    • nonmettallic-vitreous

    about 4

    4 direction clevage
    • halite
    • dull to vitreous luster
    • hardness 2
    • clevage 3 at 90
    • graphite
    • dull to metallic
    • hardness 1-2
    • low specific gravity
    • sulfur
    • vitreous- resinous
    • olivine
    • virtreous luster
    • hardness 6.5
    • conchoidal fracture
    • sg, 3.4
    • hornblende
    • vitreous luster
    • hardness 6
    • 2 direction but at 90
    • sg 3.4

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