Mineral name
|
Karlite
| 
Karlite holotype material |
Hölzel-No.
|
6.AB.270 |
Type of specimen
|
HT |
IMA-No. / Accepted
|
1980-030 |
Chemical formula
|
Mg6Al0.5[(OH)4|(BO3)3]+ 0.5Cl |
Type locality
|
Austria, Zillertal, Schlegeisstausee, Furtschaglkar |
Associated minerals
|
Next to ludwigite in a clinohumite-chlorite marble |
Collection
|
Mineralogische Sammlungen - Technische Universität Berlin |
Contact person
|
Dr. Robert Johannes Giebel |
Catalogue−No. / Site
|
85/72 / 18-6 |
Nature of
type specimen
|
Sample with needle-like crystals up to 10 mm in size, intergrown with ludwigite in a clinohumite-chlorite marble |
References
Karlite, Mg7(BO3)3(OH,Cl)5, a new borate mineral and associated ludwigite from the Eastern Alps.
Franz, G., Ackermand, D. and Koch, E. (1986)
Amer. Miner., 66, 872-877.
Karlite: crystal structure and chemical composition.
Bonazzi, P., Menchetti, S., Sabelli, C. und Trosti-Ferroni, R. (1986)
N. Jb. Miner. Mh., 253-262 |
Notes / Further information
Collected by Prof. Dr. G. Franz; named in honor of Prof. Dr. Franz Karl, mineralogist and petrologist at the University of Kiel, Germany. |
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