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Raman Spectrum of Orthoclase (36)
Frequencies (cm-1) : 104, 156, 283, 403, 473, 512, 761, 1006, 1123,
 K(AlSi3O8)

Sample : Essexite

Location : Pacific Ocean, France (French Polynesia), Tahiti,

Silicates > Tectosilicates

Feldspar Group

Celsian-Orthoclase Series

Raman Spectrum of Orthoclase (40)
Frequencies (cm-1) : 108, 154, 283, 404, 454, 475, 512, 749, 810, 1000, 1122,
 K(AlSi3O8)

Sample : Nepheline syenite

Location : Pacific Ocean, France (French Polynesia), Tahiti, Papenoo,

Silicates > Tectosilicates

Feldspar Group

Celsian-Orthoclase Series