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Malachite pigment of spherical particle form

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Heydenreich, Gunnar and Spring, Marika and Stillhammerova, Martina and Pina Martínez, Carlos Manuel (2005) Malachite pigment of spherical particle form. In Triennial meeting (14th), The Hague, 12-16 September 2005: preprints. James & James, London, pp. 480-488. ISBN 9781844072538

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Abstract

Malachite of spherulitic particle form is generally thought to be synthetic in origin. However, it could be mineral malachite formed by natural precipitation from flowing water. Agricola described a source of this type in Neusohl (Banská Bystrica, Slovakia) in 1546. This hypothesis was considered by evaluation of historical documentary sources on green pigment production in the Neusohl region, and the geological literature. Precipitation experiments imitating the natural conditions produced malachite of spherulitic form, and several wall paintings in Neusohl were found to contain spherulitic malachite. Evidence that these, and examples from Italian paintings, could be from a naturally precipitated source is presented.


Item Type:Book Section
Uncontrolled Keywords:Malachite, Mountain green, Schifergrün, Spherulitic, Neusohl, Pigment
Subjects:Sciences > Geology > Mineralogy
ID Code:55745
Deposited On:11 Jun 2019 10:37
Last Modified:11 Jun 2019 10:37

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