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: Fluorite
Alternate Specimen(s)
Fichter, Lynn S.
James Madison University
Class: HALIDES
Color
varies
Chemical Formula: CaF2
Streak
white
Luster
glassy
Hardness
4
Cleavage
4 directions
Density
3 - 3.3
Crystal Form
Cubic (Octahedral)
Common Uses / Other Facts: Ornamental use, as well as used to make hydrofluoric acid.
rock
Sulfides and Sulfates
Halides
Organic
min