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Rutile

Calc-silicate granulite (wollastonite, meionite, K-feldspar, coronitic grossular)
Bolangir, Eastern Ghats, India
Source: Thin section collection Steinmann-Institut, Universität Bonn
Photos: MMR
Comments and references:
 
  PPL

Thin prismatic needle with c ∥ thin section plane, diagonal position
 
 
  +Pol

c ∥ thin section plane, diagonal position (max Δn)
c ∥ thin section plane, diagonal position, +1λ
 

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  Image comments

   
 

Width of view   Pol orientation
 
 0.5 mm
   
 W-E
     

Rutile
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