Title | Pyrophyllite |
Description | Pyrophyllite, Al2Si4O10(OH)2 (aluminum silicate hydroxide), is an early stage metamorphic mineral and is quite common. Pyrophyllite exfoliates when water is driven off upon heating, leaving a flaky mass. Pyrophyllite and talc are isomorphous. Pyrophyllite gets its name from the Greek words for fire and leaf, as in “fire-leaf”. |
Location | USA ▹ California ▹ Mariposa |
Photographer | Shannon Heinle. 2002-02-11. |
Collection | University of North Dakota Mineralogy Collection #1511. |
Key words | pyrophyllite, talc, silicate, metamorphic mineral |
Tech details | 492 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 2358 |
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