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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
herderite
5.00
parallel
conchoidal
Transparent
none
2.90
glassy
yellow
white
prismatic
phosphates
Variable color--white, yellow, greenish-white or purple. Occurs in granite pegmatites.

 
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