BRILLIANT IDEAS

Mining by hand
  • Sandy Randell: notes of interview (2000) on display at the Walk In Mine
Impacts of new mining technologies
  • John Molyneux: letter to the Editor, Lightning Ridge Flash 20 November 1986, reproduced in “A journey with colour: A history of Lightning Ridge opal 1873-2003” by Len Cram (2004) p299

PROSPECTING

Trying their luck
  • Ion Idriess “Lightning Ridge: The land of black opals” (1940) p78
Surface features
  • Sandy Randell: notes of interview (2000) on display at the Walk In Mine

Calweld drill for prospecting

  • John McCabe: “Opal Mining at Lightning Ridge” (1979) p38-39
  • Gary Stone: notes of interviews (2013) by Rob Renew, Mari & Eric Metzke
Auger drills
  • Wolfgang Johansson: notes of interview (2013) by Rob Renew, Mari & Eric Metzke

SHAFT SINKING

Shaft sinking by hand
  • Sandy Randell: transcript of interview (2000) on display at the Walk In Mine
  • Nils Tape: notes of interview (1988) in “A journey with colour: A history of Lightning Ridge opal 1873-2003” by Len Cram (2004) p232
Calweld drill rigs
  • Stewart Tranter-Brown: notes of interview (2013) by Rob Renew
  • Len Cram: notes of interview (2013) by Rob Renew, Mari & Eric Metzke
  • Bobby Allen: notes of interview (2013) by Rob Renew, Mari & Eric Metzke
  • Stewart Tranter-Brown: notes of interview (2013) by Rob Renew

DIGGING

Gouging
  • Ion Idriess “Lightning Ridge: The land of black opals” (1940) p85
  • John McCabe: “Opal Mining at Lightning Ridge” (1979) p29
Power tools and lighting
  • David Randell: notes of telephone interview (2013) by Rob Renew
Diggers
  • Gary Stone: notes of interview (1988) by Len Cram in “A journey with colour: A history of Lightning Ridge Opal 1873-2003”  (2004) p219
  • Knud Nexo: notes of interview (2003) by Len Cram in “A journey with colour: A history of Lightning Ridge opal 1873-2003”  (2004) p225
  • Wolfgang Johansson: notes of interview (2013) by Rob Renew, Mari & Eric Metzke
Pillars and props
  • John McCabe: notes of interview (2013) by Rob Renew, Mari & Eric Metzke

HOISTING

Windlass
  • John McCabe: “Opal Mining at Lightning Ridge” (1979) p29
Dump hoist
  • Len Cram: “A Journey with colour: A history of Lightning Ridge Opal 1873-2003” (2004) p214
Autohoists

Knud Nexo: notes of interview (2003) by Len Cram in “A journey with colour: A history of Lightning Ridge opal 1873-2003”  (2004) p225

  • Gary Stone: notes of interviews (2013) by Rob Renew, Mari & Eric Metzke
  • Special purpose autohoists
  • Susan Douglas: “The Big Hoist” (2001) display at the Walk in Mine

BLOWERS

Blowers
  • John McCabe: “Opal Mining at Lightning Ridge” (1979) p34
  • Knud Nexo: notes of interview (2003) by Len Cram in “A journey with colour: A history of Lightning Ridge opal 1873-2003”  (2004) p225
Improvements to blowers
  • Gary Stone: notes of interviews (2013) by Rob Renew, Mari & Eric Metzke
  • Lawrie Cree: notes of interview (2013) by Rob Renew, Mari & Eric Metzke
  • George Mulder: notes of interview (2013) by Rob Renew, Mari & Eric Metzke
Effectiveness of blowers
  • Lawrie Cree: notes of interview (2013) by Rob Renew, Mari & Eric Metzke
  • Gary Stone: notes of interviews (2013) by Rob Renew, Mari & Eric Metzke

PROCESSING

Puddlers
  • Len Cram: “A Journey with Colour: A history of Lightning Ridge opal 1873-2003” (2004) p187
  • Len Cram: “A Journey with Colour: A history of Lightning Ridge opal 1873-2003” (2004) p188
  • Graeme Anderson: notes (2013) prepared for Jenni Brammall & Elizabeth Smith
Rumblers
  • Len Cram: “A Journey with Colour: A history of Lightning Ridge Opal 1873-2003” (2004) p202
Agitators
  • Gary Stone: notes of interview (1988) by Len Cram in “A journey with colour: A history of Lightning Ridge opal 1873-2003”  (2004) p218
  • Gary Stone: notes of interviews (2013) by Rob Renew, Mari & Eric Metzke
Power screens
  • George Mulder: notes of interview (2013) by Rob Renew, Mari & Eric Metzke

MACHINERY MAKERS

DIY mining machinery
  • Fritz Thurner: notes of interview (2013) by Rob Renew
  • Lawrie Cree: notes of interview (2013) by Rob Renew, Mari & Eric Metzke
  • Graeme Anderson: notes (2013) prepared for Jenni Brammall & Elizabeth Smith
Machinery fabrication businesses
  • Barbara Wright: notes of interview (2013) by Rob Renew
  • Wolfgang Johansson: notes of interview (2013) by Rob Renew, Mari & Eric Metzke
  • Len Cram: “A journey with colour: A history of Lightning Ridge opal 1873-2003” (2004) p224
  • George Mulder: notes of interview (2013) by Rob Renew, Mari & Eric Metzke

MINING HERITAGE AND TOURISM

First impressions
  • Knud Nexo: notes of interview (2003) by Len Cram in “A journey with colour: A history of Lightning Ridge opal 1873-2003”  (2004) p224
  • Lawrie Cree: notes of interview (2013) by Rob Renew, Mari & Eric Metzke
  • Barbara Wright: notes of interview (2013) by Rob Renew
Tourist attractions
  • John Parish: letter sent from LRMA to newspapers, 1 December 1970, reproduced in “A journey with colour: A history of Lightning Ridge opal 1873-2003“ by Len Cram (2004) p259
  • David Randell: notes of telephone interview (2013) by Rob Renew
  • Anonymous: “Opal miners dig up troubles” The Sydney Morning Herald 25 February 2012
  • Bob Pelchen: “Ridge heritage must be protected” The Ridge News, 24 August 2006

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