Identification of CaCuSi<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.svg"><mml:msub><mml:mrow/><mml:mn>4</mml:mn></mml:msub></mml:math>O<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si3.svg"><mml:msub><mml:mrow/><mml:mn>10</mml:mn></mml:msub></mml:math> (Egyptian blue) in the “Birch. Spring” painting by Robert Falk (1907) using photoluminescence

Pisareva, S. A.; Shibanova, Irina N.; Kadikova, Irina F.; Морозова, Е. А.; Yuryeva, Tatyana V.; Afanasyev, I. B.; Yuryev, Vladimir A.

doi:10.1016/j.culher.2021.05.005

Cited by 6 publications

(1 citation statement)

References 35 publications

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“…It is multi-component synthetic pigment produced in ancient times since the 4 th dynasty of the old kingdom in the 3 rd millennium BC for tombs paintings and production of small objects [47]. It composed of CaCuSi 4 O 10 (Cuprorivaite) [48], and it is known as calcium copper tetrasilicate or calcium copper phyllotetrasilicate [49]. This material was discovered by Cuprorivaite 1938 .…”

Section: Olinitementioning

confidence: 99%

Condition Assessment of the Osiris Chapel Wall Paintings in Seti-I Temple, Abydos - Egypt

A-G,

F.,

2023

Egyptian Journal of Archaeological and Restoration Studies

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This paper describes the condition of the painted decorations inOsiris chapel and identifies their original materials and implementation techniques by studying the stratigraphic structure. It includes information on the accumulation of soot layers as the most effective deterioration factor in the chapel. In addition, it assesses and documents the condition. Investigations were carried out using optical microscopy (OM), scanning electron microscopy coupled with energydispersive X-ray spectroscopy (SEM-EDX), X-ray diffraction (XRD), and attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy. The results indicated that the blue pigment revealed Egyptian blue (Cuprorivaite), the green pigment was Egyptian green, the red pigment was red ochre, and the yellow pigment was yellow ochre. Furthermore, the used plaster layer is consisted of gypsum, the vaulted ceiling is constructed by sandstone, and the walls were built from fine crystalline limestone. The accumulated soot was noticed as black particles under the optical microscope, which showed as dark gray composed of graphite according to XRD that was composed of carbon as EDX result and graphite according to XRD. The hydrophobic coatings in the presence of external agents could trigger multiple deterioration mechanisms. The documentation of the wall paintings' condition was done via Autocad and Photoshop layers.

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Section: Olinitementioning

confidence: 99%

Condition Assessment of the Osiris Chapel Wall Paintings in Seti-I Temple, Abydos - Egypt

A-G,

F.,

2023

Egyptian Journal of Archaeological and Restoration Studies

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Egyptian blue, Chinese blue, and related two-dimensional silicates: from antiquity to future technologies. Part A: general properties and historical uses

Nicola

Gobetto

Mašić

2023

Rend. Fis. Acc. Lincei

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The ancient Egyptian blue pigment was developed over 5000 years ago and was used extensively for around four millennia until its use mysteriously declined dramatically during the Early Middle Ages. It recently attracted a lot of attention along with some related materials, leading to a fast-growing number of applications in fields, such as sensors, solar concentrators, energy-saving, and medicine. The new surge in interest began in 1996 with the discovery of their intense NIR photoluminescence that surprisingly can be triggered even by visible light. In 2013, the possibility of exfoliating them and producing NIR luminescent nanosheets was established, expanding the family of 2D nanomaterials. More recently, the discovery of their high antibacterial effects and biocompatibility, and very promising optical, electric and magnetic properties, has further boosted their applications. The characteristics of Egyptian blue are due to its main component: the very stable crystalline compound CaCuSi4O10. This tetragonal sheet silicate is the synthetic analogous of the rare cuprorivaite mineral. In Part A of this review, we summarize the historical uses and main properties (i.e., composition, structure, color, stability, luminescence, and biological activity) of cuprorivaite and related 2D silicates, i.e., BaCuSi4O10 (the main constituent of the ancient pigment Chinese Blue), BaCuSi2O6 (the main constituent of the ancient pigment Chinese Purple), SrCuSi4O10 (synthetic analogous of wesselsite) and BaFeSi4O10 (synthetic analogous of gillespite). The Part B of the review will focus on the modern rediscovery of these materials, their modern synthesis and exfoliation, and the innovative applications based on their properties.

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An evergreen blue. Spectroscopic properties of Egyptian blue from pyramids to Raphael, and beyond

Sgamellotti

Anselmi

2022

Inorganica Chimica Acta

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Identification of CaCuSi4O10 (Egyptian blue) in the “Birch. Spring” painting by Robert Falk (1907) using photoluminescence

Cited by 6 publications

References 35 publications

Condition Assessment of the Osiris Chapel Wall Paintings in Seti-I Temple, Abydos - Egypt

Condition Assessment of the Osiris Chapel Wall Paintings in Seti-I Temple, Abydos - Egypt

Egyptian blue, Chinese blue, and related two-dimensional silicates: from antiquity to future technologies. Part A: general properties and historical uses

An evergreen blue. Spectroscopic properties of Egyptian blue from pyramids to Raphael, and beyond

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