|
|
Article: Anthony J. Nikischer (b. 1949). (Who's Who In Mineral Names.
- Article from:
- Rocks & Minerals
- Article date:
- May 1, 2004
- Author:
CopyrightCOPYRIGHT 2004 Heldref Publications. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
Nikischerite, ideally Na[Fe.sup.2+.sub.6]][Al.sub.3] [(S[O.sub.4]).sub.2][(OH).sub.12[([H.sub.2]O).sub.12], occurs as dark yellow-green micaceous plates to 4 mm, forming radiating balls and aggregates (Huminicki et al. 2003). The mineral has a dull to greasy luster, a pale grayish streak, and a Molls hardness of 2. It has a perfect cleavage parallel to {001}, which is also the dominant form displayed by the platy crystals. The type locality is the Huanuni tin mine, Dalence Province, Oruro Department, Bolivia, where nikischerite occurs in and on a clay matrix, associated with minor pyrite, pyrrhotite, siderite, and cronstedtite.
*********
Nikischerite ...
Related newspaper, magazine, and journal articles:
|
|
USA. New York. New York City. The ...
Magnum Photos;
January 1, 1998 ;
408 words
... ... 01-01-1998 USA. New York. New York City. The New York Stock Exchange ... system Movement New York State New York City Rubbish (household) Paper Wood ... Garment Young man USA. New York. New York City. The ...
|
|