Mineralogy, Geochemistry and Genesis of Agate—A Review

Agate—a spectacular form of SiO<sub>2</sub> and a famous gemstone—is commonly characterized as banded chalcedony. In detail, chalcedony layers in agates can be intergrown or intercalated with macrocrystalline quartz, quartzine, opal-A, opal-CT, cristobalite and/or moganite. In addition,...

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Bibliographic Details
Main Authors: Jens Götze, Robert Möckel, Yuanming Pan
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Minerals
Subjects:
Online Access:https://www.mdpi.com/2075-163X/10/11/1037