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Mineral
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Other common names
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Date collected, locality of origin
(attach a description, sketch,
or photograph of surroundings)
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Classification
Silicates:
__Independent tetrahedra (nesosilicates)
__Single or double chained (inosilicates)
__Sheet (phyllosilicates)
__Rings (cyclosilicates)
__ Framework (tectosilicates)
Nonsilicates:
__ Carbonates, Nitrates, Borates
__ Clay
__ Oxides, Hydroxides
__ Sulfides
__ Halides
__ Sulfates
__ Phosphates
__ Native elements
__ Other:
Chemical formula, varieties
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Color
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Streak
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Hardness
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It will
scratch...
__ 2.5 fingernail, paper
__ 3.5 Copper penny
__ 5.5 Glass
__ 7 Porcelain streak plate (does not leave a
streak)
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It is scratched
by...
__ 2.5 fingernail
__ 3.5 Copper penny
__ 5.5 Glass, knife blade
__ 6.5 Hardened nail
__ 7 Porcelain streak plate (leaves streak)
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Mohs'
scale
__ 1 Talc
__ 2 Gypsum
__ 3 Calcite
__ 4 Fluorite
__ 5 Apatite
__ 6 Orthoclase (potassium feldspar)
__ 7 Quartz
__ 8 Topaz
__ 9 Corundum
__ 10 Diamond
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Luster
__metallic
__nonmetallic:
vitreous (glassy), resinous,
pearly, silky, adamantine,
greasy, waxy, earthy (dull)
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Cleavage
None
1 plane (forms sheets)
2 planes; angle:
3 planes; angle:
__ planes; angle:
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Fracture
irregular (jagged),
conchoidal (shell-shaped),
hackly, earthy,
splintery (fibrous), flaky
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Formation:
(environment of origin)
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Heft:
__ heavier than quartz
__ same as quartz
__ lighter than quartz
Specific gravity or Density:
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Tenacity
ductile, malleable, fragile, flexible,
elastic
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Crystal form
__ Cubic (isometric)
__ Tetragonal
__ Hexagonal
__ Orthorhombic
__ Monoclinic
__ Triclinic
__ Rosette
__ Needle-shaped
__ Botryoidal
__ Other:
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Crystals visible with magnifying
glass?
yes |
no
Description:
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Other observations
- is attracted by magnet
- is magnetic
- optical
- taste?
- odor?
- effervescence with HCl?
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Remarks
(including uses)
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