Bullion Blocks

Magnesia Bullion Block is a shallow, porous block with multiple holes, made from pure Magnesite, in which gold or silver can be refined or assayed by melting with a blast of hot air which oxidizes lead or other base metals.

Bullion Blocks are specifically designed to stand longer in the extreme heat of furnaces. These blocks are great heat conductors and high efficient to use.

These do not not crack or break over the course of time as well as demands no maintenance. Moreover, these Blocks are extremely durable and available in various specifications.

  • Bullion Blocks

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      • With extremely low Gold and silver content, can get more accurate test results,
      • High-temperature resistance and resistance to thermal shock
      • Can be used 3-5 times for the crucibles for fire assay.
      • Made of high-quality magnesia, Bone Ash, etc.
      • Widely Used for smelting and assaying
      • Free samples are available.
      • High casting density.

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