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.
.
   
Inosilicates, Neosilicates, Sorosilicates
   
   
Oxides, Hydroxides,
Carbonates
Silicates
         
min min
Name: Magnetite
Alternate Specimen(s)  
Fichter, Lynn S.
James Madison University
Class: OXIDES Group:
Color
dark gray or black
Chemical Formula: Fe+2Fe2+3O4
Streak
reddish brown
Luster
metallic
Hardness
6
Cleavage
none
Density
5.2
Crystal Form
Cubic
Common Uses / Other Facts: Strongly magnetic - will always attract a magnet and iron fillings.
rock
Sulfides and Sulfates
Halides
Organic
min