Mineral name
|
Astrophyllite
| 
Astrophyllit (brown, elongated) with biotit, aegirine, feldspar (10 x 8,5 x 1,5 cm) |
Hölzel-No.
|
9.DU.500 |
Type of specimen
|
T |
IMA-No. / Accepted
|
prä-IMA / 1854 |
Chemical formula
|
K2Na(Fe2+,Mn)7Ti2Si8O26(OH)4 |
Type locality
|
Norway, Langesund fjord, Helgeroa, Insel Låven |
Associated minerals
|
Biotite, aegirine, orthoclase, galena, chalkopyrite, "Fahlerz" (tennantite/tetrahedrite)? |
Collection
|
Geowissenschaftliche Sammlungen - TU Bergakademie Freiberg |
Contact person
|
Andreas Massanek |
Catalogue−No. / Site
|
26246 / W 4,7 |
Nature of
type specimen
|
Mineral specimen |
References
Scheerer, T. (1854)
Berg- und hüttenmännische Zeitung, 13, 389-392 |
Notes / Further information
According to Weisbach, the sample comes from the bequest of Th. Scheerers. |
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