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: Galena
Alternate
Specimen(s)

Fichter, Lynn S.
James Madison University
Class: SULFIDES Group:
Color
dark gray
Chemical Formula: PbS
Streak
black
Luster
metallic
Hardness
2.5 - 2.75
Density
7.4 - 7.6
Cleavage
3 directions at 90o
Crystal Form
Cubic
Common Uses / Other Facts:   Major ore of lead and silver
rock
Sulfides and Sulfates
Halides
Organic
min