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Red Ochre at Blick Art site *** Environox Terra Cotta and Environox Falun Red from Earth Pigments is Iron Oxide produced from reclaimed iron sludge **** Oil paints, watercolors and other artist paints using PR101 and PR102 exist in almost any shade of yellow, orange, red and violet brown to green brown.Calcining or heating at a high temperature adds a whole other layer of deeper shades to the already wide degree of shades.*Transparency depends on particle size, amount of grinding, formulation, binder, method of manufacture, mineral content, impurities and additives.Benishinsya Red [KP.p]; Iwa-enogu; Iwaenogu; IWA-Enogu® [KP.p]; Iwaaka Carnation Red [KP.p]; Iwabeni Scarlet [KP.p]; Iwahi Red [KP.p]; Iwamomo, pink [KP.p]; Iwashikou Crimson [KP.p]; Kibeni Orange [KP.p]; Shinsia, blackberry [KP.p] "The English form of the Latin word porphyrites, used by the Romans to designate a certain rock having a dark-crimson ground through which are scattered small crystals of feldspar.In Pliny's time this rock, quarried in Egypt, was used extensively for architectural and ornamental purposes, and especially for the base or lower part of busts To the Italians it became known as porfido rosso anlico.Other rocks having a similar structure, commonly called porphyritic, were used in Italy, and designated, in accordance with the predominating color, as porfido nero, porfido verde, etc.

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Add to all that, the multitude of languages that have intermixed and the iron oxide pigment names have become an almost impossible list of varied phrases.inorganic; Synthetic Anhydrous red iron oxide, It may consist of the additional modifiers Cr2 03, Fe O, Mn203, or/and Ni O in any combination.

or Earth (Terra, Terre) and variances on the words oxide (Oxyde, oxid, etc.), Iron (di ferro, de fer, mars, Ferric, ferrous, etc.), red (rouge, rot, rosso, rojo, colorado, etc.) and brown (bruin, brun, marron, braun, moreno, etc.).

The same names are now seemingly even used interchangeably for synthetic or natural forms, including some crossover with the names of yellow hydrated iron oxides (PY42, PY43) and brown iron oxides and umbers (PBr6, PBr7).

LBNL Pigment Database Spectral radiative properties; Red Iron Oxide (i); Red Iron Oxide (ii); Red Iron Oxide (iii); Red Oxide; Making pigments: Red Ochre at webexhibits.org; Iron Brown Hematite: CPMA 3-06-7 (4th ed.

CMPA Classification and Chemical Description of the Complex Inorganic Color Pigments) CAS 1309-37-1 *Transparency depends on particle size, amount of grinding, formulation, binder, method of manufacture, mineral content, impurities and additives.

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