The Rocks & Minerals Challenge Game
 
Mineral Identification by Picture and Attribute
Explorers! Before you begin your journey, you need to recognize these geological specimens.
 
Begin by selecting one of the specimens pictured.
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Inosilicates, Neosilicates, Sorosilicates
   
   
Oxides, Hydroxides,
Carbonates
Silicates
         
min min
Name: Bauxite
 
Class: HYDROXIDES
Color
white, gray
Chemical Formula: FeO(OH) and Al2O32H2O
Streak
white
Luster
dull, earthy
Hardness
1-3
Cleavage
none
Density
2 - 2.5
Crystal Form
none
Common Uses / Other Facts: Often Modular (Little Spheres).
rock
Sulfides and Sulfates
Halides
Organic
min