Effenbergerite
Blue mineral
(repeating unit)Effenbergerite is the natural occurrence of the color Han blue.It was first found in the Wessels mine, Kalahari Manganese Field,[1] South Africa.[2] Effenbergerite was approved as a valid mineral species by the IMA in 1993.[3]
Effenberergite has the chemical formula BaCuSi4O10.[4]
The mineral was named after Dr. Herta S. Effenberger, a mineralogist and crystallographer at the University of Vienna.[4]
References
- ^ "The Kalahari Manganese Fields | Cape Minerals". www.capeminerals.co.za.
- ^ Giester, G.; Rieck, B. (December 1994). "Effenbergerite, BaCu[Si4O10], a new mineral from the Kalahari Manganese Field, South Africa: description and crystal structure". Mineralogical Magazine. 58 (393): 663–670. Bibcode:1994MinM...58..663G. doi:10.1180/minmag.1994.058.393.17. ISSN 0026-461X. S2CID 56047566.
- ^ "Effenbergerite". www.mindat.org.
- ^ a b "Effenbergerite Mineral Data". webmineral.com.
External links
- https://rruff.info/Effenbergerite
- http://database.iem.ac.ru/mincryst/s_carta.php?EFFENBERGERITE
- https://www.google.com/search?q=Effenbergerite&tbm=isch
- http://rruff.geo.arizona.edu/AMS/result.php?mineral=Effenbergerite
- https://mineralogy-ima.org/