Difference between revisions of "Celadonite"
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green earth; celadonita (Esp.); Seladonit (Deut.), Celadonit (Deut.); cladonite (Fr.); seladonitis (Gr.); celadonite (It., Port.); terra verde (It.); groene aarde (Ned.) | green earth; celadonita (Esp.); Seladonit (Deut.), Celadonit (Deut.); cladonite (Fr.); seladonitis (Gr.); celadonite (It., Port.); terra verde (It.); groene aarde (Ned.) | ||
| − | [[[SliderGallery rightalign|celadoniteRS.jpg~Raman|f376sem.jpg~SEM|f376edsbw.jpg~EDS]]] | + | [[[SliderGallery rightalign|celadoniteRS.jpg~Raman|Celadonite5m.jpg~FTIR|Celadonite5m.jpg~FTIR|f376sem.jpg~SEM|f376edsbw.jpg~EDS]]] |
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File:celadonite C100x.jpg|Green earth (celadonite) | File:celadonite C100x.jpg|Green earth (celadonite) | ||
File:PIG376.jpg|XRD pattern of green earth | File:PIG376.jpg|XRD pattern of green earth | ||
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</gallery> | </gallery> | ||
Revision as of 12:02, 13 June 2013
Description
A soft, gray-green, iron silicate mineral. Celadonite was first described in 1847 on Mr. Baldo near Verona, Italy. It is a mica type mineral that has been found as a pigment in some Chinese and Indian paintings.
Synonyms and Related Terms
green earth; celadonita (Esp.); Seladonit (Deut.), Celadonit (Deut.); cladonite (Fr.); seladonitis (Gr.); celadonite (It., Port.); terra verde (It.); groene aarde (Ned.)
| Composition | K(Mg,Fe2+)(Fe3+,Al)[Si4O10](OH)2 |
|---|---|
| Mohs Hardness | 2 |
| Density | 2.5-2.7 |
| Refractive Index | 1.62 |
Additional Images
Green earth (celadonite)
XRD pattern of green earth
Authority
- R. J. Gettens, G.L. Stout, R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966 Comment: density 2.5-2.7 and ref.index.1.62
- Ralph Mayer, Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Celadonite (Accessed Sept. 2, 2005)mohs=2, spec. grav=3)
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998