X-Ray Studies of Vein Quartz from Shungite Rocks

Abstract:

Silicon dioxide is the most common silicon compound and a major constituent of the Earth’s crust. Silicon dioxide, also known as silica, is a chemical compound that is an oxide of silicon with the chemical formula SiO₂. Silica is most commonly found in nature as quartz. Quartz exists in natural and synthetic forms. More specifically α-quartz is a widely known material, which is stable at low temperatures and pressures. The α-quartz is considered competent material because over the past many years it has attracted wide attention due to its unique characteristics. The article presents the research results from comparison between one of the morphological varieties of quartz – vein quartz of shungite rocks from Zazhogino deposit of Karelia – and a reference quartz sample. Via the Rietveld method, the values of the lattice parameters are determined. Apparent coherent length for vein quartz samples having contacts with various minerals are determined by the approximation method.

• Periodical: Key Engineering Materials (Volume 854)
• Pages: 200-206
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.854.200
• Online since: July 2020
• Authors: Yuliya L. Rigaeva*, Natalia N. Rozhkova, Anna A. Kovalchuk, Tatyana A. Ekimova, Elena V. Tikhomirova
• Keywords: Crystallite Size, Rietveld Method, Shungite Rocks, Vein Quartz, X-Ray Analysis

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