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Mineral Identification Guide, Slides of Mineralogy and Mineral Processing

University of the Pacific (UOP)Mineralogy and Mineral Processing

Mineral Identification Guide. Mineral. Shape. Color. Streak. Hardness. Magnetism. Optical. Properties. Chemical. Properties. Fluorescence. Biotite.

Typology: Slides

2021/2022

Uploaded on 09/27/2022

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Mineral Identification Guide
Mineral
Shape
Color
Streak
Hardness
Magnetism
Optical
Properties
Chemical
Properties
Fluorescence
Biotite
Thin sheets
Dark Green,
Brown, or
Black
Colorless
2.5 - 3
None
Transparent to
Translucent
None
None
Calcite
Rhombic Prism
Colorless or
White
Colorless
3
None
Transparent
to Opaque
Reacts
Fluorescent
Feldspar
- Irregular
- Cleavage
Visible
White, Pink,
or Grey
Colorless
6
None
Opaque
None
Fluorescent
Fluorite
Octohedral
Clear,
Yellow,
White,
Purple, Blue
White
4
None
Transparent to
Translucent
None
Sometimes
Fluorescent
Galena
Cubic
Lead Grey
Gray-Black
2.5
None
Opaque
None
None
Granite
Irregular
White, Pink,
Orange, Grey,
or Black
White
2.0 - 7.0
None
Opaque
None
None
Graphite
Flaky
Black, Silver,
or Grey
Black
1.0 - 2.0
None
Opaque
None
None
Hematite
Irregular
Red-Brown
or Black
Red
5.5 - 6.6
None
Translucent
to Opaque
None
None
Magnetite
Irregular
Black
Black
6
Magnetic
Opaque
None
None
Marble
Cubic
White or Grey
White
3
None
Opaque
Reacts
None
Muscovite
Thin sheets
Light Brown
or Yellow
Colorless
2.0 - 2.5
None
Transparent to
Translucent
None
None
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Mineral Identification Guide

Mineral Shape Color Streak Hardness Magnetism Optical Properties

Chemical Properties

Fluorescence

Biotite Thin sheets Dark Green, Brown, or Black

Colorless 2.5 - 3 None Transparent to Translucent

None None

Calcite

Rhombic Prism

Colorless or White

Colorless 3 None Transparent to Opaque

Reacts Fluorescent

Feldspar - Irregular

  • Cleavage Visible

White, Pink, or Grey

Colorless 6 None Opaque None Fluorescent

Fluorite

Octohedral

Clear, Yellow, White, Purple, Blue

White 4 None Transparent to Translucent

None Sometimes Fluorescent

Galena Cubic Lead Grey Gray-Black 2.5 None Opaque None None

Granite Irregular White, Pink, Orange, Grey, or Black

White 2.0 - 7.0 None Opaque None None

Graphite Flaky Black, Silver, or Grey

Black 1.0 - 2.0 None Opaque None None

Hematite Irregular Red-Brown or Black

Red 5.5 - 6.6 None Translucent to Opaque

None None

Magnetite Irregular Black Black 6 Magnetic Opaque None None

Marble Cubic White or Grey White 3 None Opaque Reacts None

Muscovite Thin sheets Light Brown or Yellow

Colorless 2.0 - 2.5 None Transparent to Translucent

None None

Mineral Identification Guide

Mineral Shape Color Streak Hardness Magnetism Optical Properties

Chemical Properties

Fluorescence

Obsidian Irregular Black, Blue, Gold

White 5.0 - 5.5 None Opaque None None

Pumice

Porous

White or Grey

White 2.0 - 7.0 None Opaque None None

Pyrite Cubes Brass-Yellow Black 6.0 - 6.5 None Opaque None None

Quartz Prism Colorless, Pink, or Purple

Colorless 7 None Transparent to Opaque

None None

Serpentin - Irregular

  • Cleavage Visible

Green, Yellow, or Black

White to Grey

3.0 - 5.0 None Transparent to Opaque

None Sometimes Fluorescent

Schist (mica)

Irregular White or Grey^ White 2.0 - 5.0 None Opaque None None

Sodalite Irregular Blue, White, Pink, Grey, or Green

White 6 None Transparent to Translucent

None Fluorescent

Sulfur Irregular Yellow Yellow 1.5 - 2.5 None Translucent to Opaque

None None

Talc Irregular White, Green, or Pink

White 1 None Opaque None None

Tirodite Irregular Brown, Green, Pink, or Yellow

White 6.0 - 6.5 None Transparent to Translucent

None Fluorescent

Wernerite (scapolite)

Prismatic White, Grey, Brown, Pink, or Yellow

White 6 None Opaque None Fluorescent