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MINERAL IDENTIFICATION PROJECT


Search found 1 mineral.


Mineral
Hard- ness
Cleavage
Fracture
Trans- parency
10% HCl Reaction
SG
Luster
Color
Streak
Xtal Form
Mineral Class
Comments
limonite
5.0
none
Uneven
opaque
none
4.00
dull
brown
brown
microcrystalline
hydroxides
Color variable from yellow, through orange to brown to black. Hardness variable. Basically it's the oxidation of iron rich minerals (rust).

 
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