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Mineral Identification Guide, Slides of 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