A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Kyanite from Minas Gerias, Brazil |
|---|---|
| Description | The blue bladed mineral is kyanite, Al2SiO5; the surrounding material is almost all quartz. Kyanite, a common metamorphic mineral has two polymorphs (different minerals with the same composition): andalusite and sillimanite. Kyanite forms at higher pressures than andalusite or sillimanite. This specimen is 19 cm across. |
| Location | Brazil ▹ Minais Gerais |
| Photographer | Twyla Baker. 2001-06-28. |
| Collection | University of North Dakota Mineralogy Collection. |
| Key words | kyanite, Brazil |
| Tech details | 714 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 940 |
 | |