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Mineral exploration for opals is termed prospecting conducted under an Opal Prospecting Licence or Mineral Claim Opal Prospecting Licences are granted over much larger areas than those granted under mineral claims but are purely for prospecting and do not authorise mining

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19 Jun 2017 All equipment is hoisted down the shaft often in pieces for rebuilding The main machine used underground is unique to the opal mining nbsp

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Free workshops to identify and control the hazards of machinery and electrical equipment used in opal mining will be held at the Grawin Club in the Scrub on August 12 and the Lightning Ridge Bowling Club on August 13 at 2pm

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This publication has been compiled by Service Training and Regulatory Support of Mining and Petroleum Machinery and equipment use opal and gemstones to operate on a mining claim up to 20 hectares using machinery for mining Amendments to the Environmental Protection Act 1994 EP Act are also made to

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