Mineral name
|
Prehnite
| 
Sample 2004_1864 (size 7 x 5 x 2.5 cm) with original label from M. H. Klaproth (size 6.5 x 5.5 cm) |
Hölzel-No.
|
9.DU.300 |
Type of specimen
|
vermutl. T |
IMA-No. / Accepted
|
pre-IMA |
Chemical formula
|
Ca2Al[(OH)2|AlSi3O10] |
Type locality
|
South Africa, Western Cape Province, Cape of Good Hope, Kleiner Riet-River, Agter Roggefeld (from the Karoo dolerites) |
Associated minerals
|
|
Collection
|
Museum für Naturkunde - Humboldt-Universität zu Berlin |
Contact person
|
Dr. Ralf-Thomas Schmitt |
Catalogue−No. / Site
|
Probe 2004_1864 |
Nature of
type specimen
|
Mineral specimens |
References
Chemische Zergliederung des Prehnits.
Klaproth, M.H. (1788)
Schriften der Gesellschaft Naturforschender Freunde zu Berlin, 8, 211-223 |
Notes / Further information
"Sample of Abraham Gottlob Werner (Freiberg) given to Martin Heinrich Klaproth for chemical analysis." - Current research (2023) has shown that this sample was not collected until 1804 by Martin Hinrich Carl Lichtenstein and that Klaproth did not receive it from him until 1810 or 1811. Therefore, this sample cannot be the type material for Klaproth's analysis and publication of 1788, which Klaproth had received from Abraham Gottlob Werner. |
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