Characterization of Crystalline Hornblende Gneiss by X-Ray Diffraction Technique

TL;DR

This study uses X-ray diffraction to analyze the crystal structure of hornblende gneiss, identifying its mineral composition and determining key structural parameters.

Contribution

It provides a detailed characterization of hornblende gneiss's crystal structure and mineral composition using X-ray powder diffraction, including unit cell and atomic coordinates.

Findings

Hornblende is a mixture of quartz, albite, microcline, and biotite.

Unit cell parameters and space group were determined.

Atomic positional coordinates for the minerals were established.

Abstract

In this study the crystal structure of hornblende gneiss has been analyzed by X-ray powder diffraction technique. From X-ray data shows the hornblende is a mixture of four molecules; quartz (SiO_2 ), albite(Al_1 Na_1 O_8 Si_3 ), microcline(Al_1 K_1 O_8 Si_3 ), and biotite (H_1.47 Al_1.92 F_1.98 Fe_2.59 K_2 Mg_3.15 Mn_0.09 O_21.47 Si_5.98 Ti_0.27 ),Then determined unit cell parameters, space group, and the atomic positional coordinates for all consist of the sample.