Mineral name
|
Prehnite
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Prehnite, Namaqualand, Northern Cape, South Africa, Martin Heinrich Klaproth Collection (Inv. No. 2004_1882, cut and polished slice, size 6 x 5 x 0.5 cm), with label from Klaproth. |
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, Northern Cape Province, "Land of the Namaquar" |
Associated minerals
|
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Collection
|
Museum für Naturkunde - Humboldt-Universität zu Berlin |
Contact person
|
Dr. Ralf-Thomas Schmitt |
Catalogue−No. / Site
|
Probe 2004-1882 |
Nature of
type specimen
|
Polished slice |
References
Chemische Zergliederung des Prehnits.
Klaproth, M.H. (1788)
Schriften der Gesellschaft Naturforschender Freunde zu Berlin, 8, 211-223
Prehnit – Ein neues Mineral aus der südafrikanischen Kap-Provinz.
Schmitt, R. T. (2025)
In: Damaschun, F. & Schmitt, R. T.: Uranentdeckung und Mineralanalysen – Die Sammlung Martin Heinrich Klaproth im Museum für Naturkunde Berlin. Göttingen, 110–115 |
Notes / Further information
This sample from Martin Heinrich Klaproth's collection corresponds exactly in its appearance to the prehnite type samples from Freiberg, so that it is probably a residual sample from his prehnite analysis, which he had received from Abraham Gottlob Werner from Freiberg.
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