Rouge: Difference between revisions

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== Description ==
== Description ==


A pure, finely powdered [http://cameo.mfa.org/materials/fullrecord.asp?name=iron%20oxide%20red red iron oxide]. Rouge is synthetically made by calcining ferrous sulfate. It ranges in color from bright red to dark. In general, the darker color indicates a harder grain. Rouge has rounded particles that burnish rather than scratch. It is used as a polishing agent for glass, metals, and jewelry. Very fine, ultrapure rouge is called [http://cameo.mfa.org/materials/fullrecord.asp?name=jewelers%27%20rouge jewelers' rouge].
A pure, finely powdered [[iron%20oxide%20red|red iron oxide]]. Rouge is synthetically made by calcining ferrous sulfate. It ranges in color from bright red to dark. In general, the darker color indicates a harder grain. Rouge has rounded particles that burnish rather than scratch. It is used as a polishing agent for glass, metals, and jewelry. Very fine, ultrapure rouge is called [[jewelers%27%20rouge|jewelers' rouge]].


== Synonyms and Related Terms ==
== Synonyms and Related Terms ==
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polishing rouge; polishing crocus
polishing rouge; polishing crocus


{| class="wikitable"
==Physical and Chemical Properties==
|-
! scope="row"| Mohs Hardness
| 5.5 - 6.5
|}


== Authority ==
* Mohs Hardness = 5.5 - 6.5
== Comparisons ==
 
[[media:download_file_209.pdf|Properties of Common Abrasives]]
 
==Resources and Citations==


* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p.674
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p.674

Latest revision as of 09:42, 28 June 2022

Description

A pure, finely powdered red iron oxide. Rouge is synthetically made by calcining ferrous sulfate. It ranges in color from bright red to dark. In general, the darker color indicates a harder grain. Rouge has rounded particles that burnish rather than scratch. It is used as a polishing agent for glass, metals, and jewelry. Very fine, ultrapure rouge is called jewelers' rouge.

Synonyms and Related Terms

polishing rouge; polishing crocus

Physical and Chemical Properties

  • Mohs Hardness = 5.5 - 6.5

Comparisons

Properties of Common Abrasives

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p.674
  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
  • R.M.Organ, Design for Scientific Conservation of Antiquities, Smithsonian Institution, Washington DC, 1968