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Yoderite

#59148
SOLD
Yoderite from Mautia Hill, Central prov., Dodoma, Tanzania - 59148
Yoderite from Mautia Hill, Central prov., Dodoma, Tanzania - 59148

Yoderite

#59148
Availability
Sold
Size
2 x 1.5 x 1.3 cm - Thumbnail 
Formula
(MgAl3)(MgAl)Al2O2(SiO4)4(OH)2 (RRUFF)
Locality
Mautia Hill, Central prov., Dodoma, Tanzania

Dark purple or dark blue prismatic crystals to 5mm in micaceous or talc matrix. Yoderite is a product of metamorphism formed under high pressures and moderately high temperatures. Yoderite is a rare mineral and only occurs at two laces worldwide.

Type Locality

Yoderite

Formula
(MgAl3)(MgAl)Al2O2(SiO4)4(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Anhedral Grains, Lath 
Cleavage
Parting, Parting, None 
Luster
Vitreous (Glassy) 
Color
purple red, deep blue, emerald green, yellow 
Streak
white 
Class
Monoclinic - Sphenoidal 
Hardness
6 

Data courtesy of Webmineral.

Special Info
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