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: Graphite
Alternate Specimens
Fichter, Lynn S.
James Madison University
Class: NATIVE ELEMENTS
Color
dark gray
Chemical Formula: C
Streak
black
Luster
greasy
Hardness
1 - 2
Cleavage
Perfect Basal
Density
2.3
Crystal Form
Trigonal/Hexagonal (Very Rare)
Common Uses / Other Facts: Used for lead in pencils.
rock
Sulfides and Sulfates
Halides
Organic
min