Jump to content

File:Rock salt (halitite) (Klodawa Salt Dome, Zechstein Formation, Upper Permian; Klodawa Salt Mine, central Poland) 1 (15953564096).jpg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (2,263 × 1,742 pixels, file size: 1.3 MB, MIME type: image/jpeg)

Summary

Description

Rock salt (sedimentary halitite) from the Permian of Poland (4.8 cm across at its widest).

This interesting rock is halitite, also called rock salt. As its name suggests, it is entirely composed of halite (NaCl - sodium chloride). Halitite is the most common type of evaporite, a crystalline-textured, chemical sedimentary rock formed by the evaporation of water (usually seawater), and the precipitation of dissolved minerals. Most halitites are clear to whitish to grayish. This sample is from Poland's Klodawa Salt Mine and has intensely blue-colored halite in places. The coloration is not due to impurities, but rather to structural defects at the atomic level. Blue-colored halite and rock salt tend to occur in proximity to sylvite (KCl) and other potassium salt minerals. Potassium-40 irradiation from these minerals causes atomic-scale defects, resulting in blue coloration. Blue halite at this mine also occurs in tectonically deformed rock salt, where tectonite formation has occurred (extreme stretching).

Geologic unit & age: Klodawa Salt Dome, Zechstein Formation, Upper Permian

Locality: Klodawa Salt Mine, ~1 to 2 km south of the town of Klodawa, central Poland


Most info. from:

Zelek et al. (2014) - Lattice deformation of blue halite from Zechstein evaporite basin: Klodawa Salt Mine, central Poland. Mineralogy and Petrology 108: 619-631.
Date
Source Rock salt (halitite) (Klodawa Salt Dome, Zechstein Formation, Upper Permian; Klodawa Salt Mine, central Poland) 1
Author James St. John

Licensing

w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/15953564096 (archive). It was reviewed on 6 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

6 December 2019

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

8 December 2014

image/jpeg

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current01:29, 6 December 2019Thumbnail for version as of 01:29, 6 December 20192,263 × 1,742 (1.3 MB)Ser Amantio di NicolaoTransferred from Flickr via #flickr2commons

The following 3 pages use this file:

Global file usage

The following other wikis use this file:

Metadata