Phengite
In today's article we are going to talk about Phengite, a topic that has sparked great interest in recent times. Phengite is an issue that affects a wide variety of people, as it has repercussions on various aspects of daily life. In this article, we will explore different aspects and perspectives related to Phengite, with the aim of providing a complete and detailed view on this topic. We will examine its history, its current impact, as well as possible future implications. Additionally, we will analyze different opinions and approaches about Phengite, in order to provide a broader understanding of this topic. Join us in this complete analysis of Phengite!
| Phengite | |
|---|---|
 | |
| General | |
| Category | Phyllosilicate minerals, mica group, muscovite variety |
| Formula | K(AlMg)2(OH)2(SiAl)4O10 |
Phengite is a series name for dioctahedral micas of composition K(Al,Mg)2(OH)2(Si,Al)4O10. It is common for Mg or Fe2+ to substitute for Al on the Y site and a corresponding increase in Si on the Z site in the mica group formula X2Y4–6Z8O20(OH, F)4. Similar to muscovite but with addition of magnesium. It is a non-IMA recognized mineral name representing the series between muscovite and celadonite.[1][2]
The silica content of phengite has been proposed as a geobarometer for the metamorphism of low grade schists.[3]
References
- ^ Mindat.org
- ^ Mineralienatlas: Phengit
- ^ M. E. Fleet and R. A. Howie, Rock-Forming Minerals, Vol. 3A: Micas, Geological Society of London; 2nd ed, 2006, p. 132, ISBN 1-86239-142-4 (accessed through Google books)
- Glossary of Geology, Fifth Edition, Eds. K.K.E. Neiendorf, J.P. Mehl, J.A. Jackson, American Geological Institute, 2005
- von Kobell, Franz (1853) Tafeln zur Bestimmung des Mineralien, 5th edition, Munchen.
- Guidotti, Charles V. (1984) Micas in metamorphic Rocks, reviews in Mineralogy, 13: 357-467.
- Rieder et al. (1998): Nomenclature of the micas. Canadian Mineralogist 36: 905-912.
- Mookherjee, M., and Redfern, S.A.T. (2002) A high-pressure Fourier-transform infrared study of the interlayer and Si-O stretching region in phengite-2M 1. Clay Minerals: 37: 323-336.
- Cibin, G., G. Cinque, A. Marcelli, A. Mottana, & R. Sassi (2008): The octahedral sheet of metamorphic 2M1-phengites: a combined EMPA and AXANES study: American Mineralogist 93, 414-425.
| Overview |  | |
|---|---|---|
| Common minerals | ||
| Related | ||
 | This article about a specific silicate mineral is a stub. You can help Wikipedia by expanding it. |