Friedelite
Phyllosilicate mineral
hardness
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]: 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 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. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ a b c "Friedelite". National Gem Lab. 2017-03-09. Retrieved 2021-10-12.
- ^ a b "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.
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Phyllosilicates
- Aluminoceladonite
- Anandite
- Annite
- Aspidolite
- Balestraite
- Bityite
- Biotite
- Boromuscovite
- Bramallite
- Celadonite
- Chernykhite
- Chromphyllite
- Clintonite
- Eastonite
- Ephesite
- Ferroaluminoceladonite
- Ferroceladonite
- Fluorannite
- Fluorokinoshitalite
- Fluorophlogopite
- Fluorotetraferriphlogopite
- Garmite
- Glauconite
- Gorbunovite
- Hendricksite
- Illite
- Kinoshitalite
- Lepidolite
- Luanshiweiite
- Manganiceladonite
- Margarite
- Masutomilite
- Montdorite
- Muscovite
- Nanpingite
- Norrishite
- Orlovite
- Oxyphlogopite
- Paragonite
- Phengite
- Phlogopite
- Polylithionite
- Preiswerkite
- Roscoelite
- Siderophyllite
- Suhailite
- Tainiolite
- Tetraferriannite
- Trilithionite
- Voloshinite
- Wonesite
- Yangzhumingite
- Minnesotaite
- Talc
- Willemseite
- Ferripyrophyllite
- Pyrophyllite
- Bismutoferrite
- Dickite
- Halloysite
- Hisingerite
- Kaolinite
- Nacrite
- Amesite
- Antigorite
- Berthierine
- Brindleyite
- Caryopilite
- Chrysotile
- Cronstedtite
- Fraipontite
- Greenalite
- Guidottiite
- Kellyite
- Lizardite
- Manandonite
- Népouite
- Odinite
- Pecoraite
- Beidellite
- Ferrosaponite
- Montmorillonite
- Nontronite
- Saponite
- Sauconite
- Swinefordite
- Vermiculite
- Volkonskoite
- Yakhontovite
- Allophane
- Chrysocolla
- Imogolite
- Neotocite
- Falcondoite
- Ferrisepiolite
- Sepiolite
- Bannisterite
- Franklinphilite
- Lennilenapeite
- Parsettensite
- Stilpnomelane
- Structural groups mainly; based on rruff.info/ima, modified
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