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how to an automatic opal mine hoist

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  • Introduction To Opals

    Introduction To Opals

    The Opal dirt is mined and brought to the surface using several types of equipment like an underground digger, bogger, blower or automatic hoist After it gets to the surface, it will be taken by tip truck to a dam where it will be washed using a cement mixer with water After the clay has dissolved any opals can be picked in the tilings

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  • Australian Opal Gemstones All About Opals

    Australian Opal Gemstones All About Opals

    No major advances in technology occurred until the 1960s, when local miner Eric Catterall, crippled by childhood polio, invented an automatic hoist to carry his dirt to the surface I spent two and a half years mining and found about $90,000 worth of opal, I sold the claim and the new owners found another $35,000 I started mining with an auto hoist, electric jack hammer, and a gouging pick

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  • How Do I Start Mining Opal Page 1 Gemstones And

    How Do I Start Mining Opal Page 1 Gemstones And

    Jul 19, 2019 The roof was unsafe, I pulled down about 2 feet of opal dirt to a thin sandstone roof and found $30,000, just above an existing drive In that decade, artesian water became available to wash the opal dirt, making separation of opal from the dirt more efficient

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