Willemite-Calcite-225253

Autor:

Robert M. Lavinsky

Shortlink:

https://czwiki.cz/b/1455d

Zdroj:

Wikimedia Commons

Formát:

800 x 707 Pixel (138097 Bytes)

Popis:

Willemite, Calcite

Locality: Franklin, Franklin Mining District, Sussex County, New Jersey, USA (Locality at mindat.org)

Size: 12.7 x 10.5 x 6.0 cm.

This specimen features two doublet clusters of doubly-terminated willemites, each about 4 cm, flanking a large section of massive calcite matrix. Actually, you can see there are other willemites embedded within. The contrast, when shot with ultraviolet light, is stark and dramatic. This is an old specimen, from the stock of Arthur Montgomery (1909-1999), well known field collector and dealer. His label dates it to (1937-1941). Until recently in the George Elling Collection.

Licence:

CC BY-SA 3.0

Credit:

http://www.mindat.org/photo-225253.html

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