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Raman Spectrum of Hornblende (100)
Frequencies (cm-1) : 128, 192, 371, 412, 568, 667, 973, 1028, 3619, 3634, 3653, 3666,
 (Ca,Na)2(Mg,Fe,Al)5[(Si,Al)4O11]2(OH)2

Sample : Thin section of dacite from the Pitons du Carbet volcano

Location : Central America and the Caribbean islands, Lesser Antilles, Martinique, Bellefontaine,

Silicates > Inosilicates

Amphibole Group > Calcium Amphibole Subgroup