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: Calcite
Alternate
Specimen(s)

Fichter, Lynn S.
James Madison University
Class: CARBONATES
Color
clear, white, yellow
Chemical Formula: CaCO3
Streak
white
Luster
glassy
Hardness
2.5 - 3
Cleavage
3 directions not at 90o
Density
2.7
Crystal Form
Trigonal/Hexagonal
Common Uses / Other Facts: Reacts with HCL!
rock
Sulfides and Sulfates
Halides
Organic
min