| Friedelite | |
|---|---|
 | |
| General | |
| Category | Minerals |
| IMA symbol | Fdl1 |
| Identification | |
| Mohs scale hardness | 4 - 5 |
| Streak | White |
Friedelite is a mineral2 in the pyrosmalite group.3 The mineral is named after Charles Friedel.
Name
The name friedelite is only for pure Manganese end-member of the group pyrosmalite.4: 30
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 carats5 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
References
- Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- "Friedelite". National Gem Lab. 2017-03-09. Retrieved 2021-10-12.
- "Friedelite". www.mindat.org. Retrieved 2021-10-13.
- Brigatti, M. F.; Mottana, A. (2011-11-15). Layered Mineral Structures and their Application in Advanced Technologies. The Mineralogical Society of Great Britain and Ireland. ISBN 978-0-903056-29-8.
- "Friedelite Value, Price, and Jewelry Information". International Gem Society. Retrieved 2021-10-13.
- Schumann, Walter (2009). Gemstones of the World. Sterling Publishing Company, Inc. p. 56. ISBN 978-1-4027-6829-3.