Chemistry:Friedelite
From HandWiki
Short description: Phyllosilicate mineral
| Friedelite | |
|---|---|
 | |
| General | |
| Category | Mineral |
| Identification | |
| Mohs scale hardness | 4 - 5 |
| Streak | White |
Friedelite is a mineral[2] in the pyrosmalite group.[3] The mineral is named after Charles Friedel.
Name
The name friedelite is only for pure Mn end-member of the group pyrosmalite.[4](p30)
The mineral was named in 1876 by Emile Bertrand after Charles Friedel.[3]
Characteristics
Color
Its color can be pale pink, dark brownish red, red, brown, or orangish red. It is normally found in 1 to 5 carats[5] as well as nontransparent.[2]
Fluorescence
The mineral has a colorful luminescense under UV light.[2] With the fluorescence being red, but at rare times it has a green or yellow fluorescence.[6]
References
- ↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode: 2021MinM...85..291W.
- ↑ 2.0 2.1 2.2 "Friedelite" (in en-US). 2017-03-09. https://nationalgemlab.in/friedelite/.
- ↑ 3.0 3.1 "Friedelite". https://www.mindat.org/min-1609.html.
- ↑ Brigatti, M. F.; Mottana, A. (2011-11-15) (in en). Layered Mineral Structures and their Application in Advanced Technologies. The Mineralogical Society of Great Britain and Ireland. ISBN 978-0-903056-29-8. https://books.google.com/books?id=Jau_CQAAQBAJ&dq=Friedelite&pg=PA30.
- ↑ "Friedelite Value, Price, and Jewelry Information" (in en). https://www.gemsociety.org/article/friedelite-jewelry-and-gemstone-information/.
- ↑ Schumann, Walter (2009) (in en). Gemstones of the World. Sterling Publishing Company, Inc.. pp. 56. ISBN 978-1-4027-6829-3. https://books.google.com/books?id=V9PqVxpxeiEC&dq=Friedelite&pg=PA35.
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