The "Green Earths" Glauconite and Celadonite: From Genesis to Application
A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Clays and Engineered Mineral Materials".
Deadline for manuscript submissions: 25 April 2025 | Viewed by 282
Special Issue Editors
Interests: mineralogy; geochemistry; igneous petrology; mantle oxidation; sedimentary petrology
Special Issues, Collections and Topics in MDPI journals
Interests: mineralogy; geochemistry; clays; nanomaterials
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Authigenic "green earths" show a broad compositional spectrum, including potassic green clay with mica-like structure such as celadonite and glauconite as well as ferric illite, ferrous green clays and other phases. Celadonite and glauconite are comparable in terms of physical, chemical and mineralogical characteristics. The micro-environment in which these minerals form requires slightly oxygen-depleted conditions, facilitating the uptake of Fe into the structure so that glauconite is ubiquitous in marine deposits while celadonite forms in both marine and non-marine environments, more commonly by altering intermediate to mafic rocks. Recent studies show that there are subtle differences in their structure so that different techniques can be applied to distinguish them. This can also be of importance due to their application as pigments in the creation of artworks since antiquity.
The aim of this Issue is to bring together researchers from different fields (sedimentology, mineralogy, petrology, and archaeometry) to acquire new knowledge on their geological history and successive transformation as well as a more precise classification of the green pigments in heterogeneous samples such as wall paintings and commercially available green earths.
Dr. Davide Lenaz
Dr. Filippo Parisi
Guest Editors
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Keywords
- glauconite
- celadonite
- geology
- archaeometry
- spectroscopy
- pigments
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