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MINERAL IDENTIFICATION PROJECT


Search found 1 mineral.


Mineral
Hard- ness
Cleavage
Fracture
Trans- parency
10% HCl Reaction
SG
Luster
Color
Streak
Xtal Form
Mineral Class
Comments
rutile
6.0
perfect
conchoidal
opaque
none
4.30
metallic
brown
brown
acicular
oxides
Usually as an inclusion in other minerals (see rutilated quartz). Causes the asterism in star rubies and sapphires.

 
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