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The dahlia's
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Pigmenti Minerali_ EMATITE (Terra Rossa)

10/23/2016

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Ossido Ferrico -  Fe2O3 

Pigmento di origine minerale; è la famosa terra rossa che gli antichi utilizzavano per realizzare il primo abbozzo dell’affresco, denominato Sinopia.
In passato era chiamata Sinopsis, conosciuta anche dai Greci e dalle precedenti civiltà.
 Il nome deriva, secondo Plinio dalla città di Sinope dove fu trovata per la prima volta.
Plinio stesso precisa che ci sono tre tipi di Sinopia:  rubra (rossa), minus rubra (meno rossa) e inter has media (intermedia).

Picture

Gode di un buon potere coprente, essendo una terra soffre la modificazione di colore nella carbonatazione (affresco), può essere utilizzata in tutte le tecniche.


​Sinonimi: Terra rossa, Sinopia, Oligisto Micaceo, Colcotar, Terra di Pozzuoli, Rosso Inglese, Sinopia Rubrica, Terra Rossa di Verona, Rosso Ercolano, Rosso Pompeiano, Terra Rossa di Venezia
Inglese: Red Earth  
Nomi Antichi: Brunus, Bularminium

​
***(((Informazioni sui materiali in continuo AGGIORNAMENTO)))***



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