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: Olivine
Alternate Specimen(s)  
Fichter, Lynn S.
James Madison University
Class: SILICATES Group: Neosilicates (isolated tetrahedra silicates)
Color
olive green
Chemical Formula: Mg2SiO4Fe2SiO4
Streak
white
Luster
glassy
Hardness
6.5 - 7
Cleavage
1 direction, poor
Density
3.3 - 3.4
Crystal Form
Orthorhombic
Common Uses / Other Facts:
rock
Sulfides and Sulfates
Halides
Organic
min