X-Ray Diffraction and Vibrational Spectroscopic Characteristics of Hydroxylclinohumite from Ruby-Bearing Marbles (Luc Yen District, Vietnam)

<table>(a) Honey-yellow crystals of hydroxylclinohumite (Chu) associated with grey anorthite (An) and green pargasite (Prg) in white calcite matrix. (b) Aggregate of hydroxylclinohumite crystals isolated after dissolution of calcite matrix in hydrochloric acid.</table>

International Journal of Mineralogy

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Figure 1

Figure 1: X-Ray Diffraction and Vibrational Spectroscopic Characteristics of Hydroxylclinohumite from Ruby-Bearing Marbles (Luc Yen District, Vietnam) 

Figure 1 | X-Ray Diffraction and Vibrational Spectroscopic Characteristics of Hydroxylclinohumite from Ruby-Bearing Marbles (Luc Yen District, Vietnam) 