A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Imperial topaz, Ouro Preto, Brazil |
|---|---|
| Description | Topaz comes in many different colors but has composition that is always close to Al2SiO4(F,OH)3. Minor and trace elements lead to the color variation. This golden brown variety from the Ouro Preto region of Minas Gerais State, Brazil, is sometimes called “imperial topaz.” When clear and flawless, it is the most valuable variety of topaz. This specimen is 6 cm tall. |
| Location | Brazil ▹ Minas Gerais. Near Ouro Preto. |
| Photographer | Neil Kadrmas. 2001-05-01. |
| Collection | Dexter Perkins Mineralogy Collection. |
| Key words | topaz, imperial topaz, Minas Gerais, Brazil, Ouro Preto |
| Tech details | 278 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 446 |
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