File:The Arsenic Labyrinth at Botallack Mine - geograph.org.uk - 490315.jpg

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The_Arsenic_Labyrinth_at_Botallack_Mine_-_geograph.org.uk_-_490315.jpg ‎(640 × 458 pixels, file size: 61 KB, MIME type: image/jpeg)

Summary

Description
English: The Arsenic Labyrinth at Botallack Mine Arsenic compounds were an unwanted pollutant in tin ore which ruined the smelting process. The solution was to heat the ore to drive off the arsenic as a vapour. In the early days of mining this badly polluted the surrounding countryside. However arsenic itself proved to be a saleable by-product so the arsenic fumes were sent through a labyrinth of tunnels where it would condense on the tunnel walls. This photo shows part of the arsenic labyrinth at Botallack mine. The maze of tunnels has partially collapsed. Half way through the labyrinth, the tunnel passes over the top of an arch to cross one of the entrances to the mine. At the end of the labyrinth the remaining fumes passed up the tall chimney shown in the photograph.
Date
Source From geograph.org.uk
Author Tony Atkin
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Tony Atkin / The Arsenic Labyrinth at Botallack Mine / 
CC BY-SA 2.0
Tony Atkin / The Arsenic Labyrinth at Botallack Mine
Camera location50° 08′ 24″ N, 5° 41′ 25″ W  Heading=292° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo
Object location50° 08′ 25″ N, 5° 41′ 28″ W  Heading=292° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

Licensing

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attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Tony Atkin
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  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

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copyrighted

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copyright license

Creative Commons Attribution-ShareAlike 2.0 Generic

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operator: Geograph Britain and Ireland
described at URL: https://www.geograph.org.uk/photo/490315
geograph.org.uk image ID: 490315

inception

7 July 2007

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coordinates of the point of view

50°8'24.43"N, 5°41'24.72"W

heading: 292 degree
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captured with

Canon EOS 350D

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coordinates of depicted place

50°8'25.30"N, 5°41'28.32"W

heading: 292 degree

exposure time

0.002 second

focal length

41 millimetre

MIME type

image/jpeg

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Date/TimeThumbnailDimensionsUserComment
current06:15, 5 February 2011Thumbnail for version as of 06:15, 5 February 2011640 × 458 (61 KB)GeographBot== {{int:filedesc}} == {{Information |description={{en|1=The Arsenic Labyrinth at Botallack Mine Arsenic compounds were an unwanted pollutant in tin ore which ruined the smelting process. The solution was to heat the ore to drive off the arsenic as a vap
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