Broken River Mining

We are a small Australian family run and operated company that supplies Australian boulder opals directly from our mines to you. Providing all opal lovers with an array of opals from boulder splits and specimens to precious gemstones, all at trade prices.

We look forward to sharing the beauty of opal with you.

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Our Opal: An Ethical Choice

At Broken River Mining we are committed to being both environmentally and socially responsible.

Sue and her small team use environmentally responsible procedures in mining and processing all BRM opals. We mine small sections of land at a time and we always rejuvenate the land when we are done.

All opals are mined by us in Queensland, Australia.

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Zoom 18.76 Ct set of three boulder opals
Zoom 18.76 Ct set of three boulder opals
Zoom 18.76 Ct set of three boulder opals
Zoom 18.76 Ct set of three boulder opals

18.76 Ct set of three boulder opals

$180.00 AUD

A set of three matrix boulder opals with gorgeous purples.

  • 18.76 carats (total).
  • ~ 15.6 x 10.8 mm / 0.61" x 0.42".
  • ~ 4 mm / 0.15" thick.
  • Natural solid boulder opals.
  • Mined by Sue at her Yaraka opal mine in Queensland, Australia.
  • Commercial grade.
  • Opal ID 2938.

What's New

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9.10 Ct striped boulder opal

$200.00 AUD
Zoom 9.10 Ct striped boulder opal
Zoom 9.10 Ct striped boulder opal
Zoom 9.10 Ct striped boulder opal
Zoom 9.10 Ct striped boulder opal
Zoom 9.10 Ct striped boulder opal
Zoom 9.10 Ct striped boulder opal
Zoom 9.10 Ct striped boulder opal

9.10 Ct striped boulder opal

$200.00 AUD
A free-form picture stone boulder opal with green, blue and purple stripes. 9.10 carats. 17 x 11.8 mm / 0.67 x 0.46". 4.5 mm / 0.17" thick. Natural solid boulder...

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6.15 Ct rectangle boulder opal

$65.00 AUD
Zoom 6.15 Ct rectangle boulder opal
Zoom 6.15 Ct rectangle boulder opal
Zoom 6.15 Ct rectangle boulder opal
Zoom 6.15 Ct rectangle boulder opal
Zoom 6.15 Ct rectangle boulder opal
Zoom 6.15 Ct rectangle boulder opal
Zoom 6.15 Ct rectangle boulder opal

6.15 Ct rectangle boulder opal

$65.00 AUD
A rectangle picture stone boulder opal with blues and a caramel swirl. 6.15 carats. 14.3 x 11.1 mm / 0.56 x 0.43". 3.6 mm / 0.14" thick. Natural solid boulder...

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8.35 Ct rectangle boulder opal

$80.00 AUD
Zoom 8.35 Ct rectangle boulder opal
Zoom 8.35 Ct rectangle boulder opal
Zoom 8.35 Ct rectangle boulder opal
Zoom 8.35 Ct rectangle boulder opal
Zoom 8.35 Ct rectangle boulder opal
Zoom 8.35 Ct rectangle boulder opal
Zoom 8.35 Ct rectangle boulder opal

8.35 Ct rectangle boulder opal

$80.00 AUD
A rectangle boulder opal with purples, greens and blues. 8.35 carats. 15.1 x 11.7 mm / 0.59 x 0.46". 4 mm / 0.15" thick. Natural solid boulder opal. Mined by...

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2.30 Ct small green-blue boulder opal

$1,312.00 AUD
Zoom 2.30 Ct small green-blue boulder opal
Zoom 2.30 Ct small green-blue boulder opal
Zoom 2.30 Ct small green-blue boulder opal
Zoom 2.30 Ct small green-blue boulder opal
Zoom 2.30 Ct small green-blue boulder opal
Zoom 2.30 Ct small green-blue boulder opal
Zoom 2.30 Ct small green-blue boulder opal

2.30 Ct small green-blue boulder opal

$1,312.00 AUD
A small rectangle boulder opal with strong green-blues on a dark background / body tone.  2.30 carats. 13.4 x 5.2 mm / 0.52 x 0.20". 3 mm / 0.11" thick....

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7.75 Ct colourful boulder opal

$1,163.00 AUD
Zoom 7.75 Ct colourful boulder opal
Zoom 7.75 Ct colourful boulder opal
Zoom 7.75 Ct colourful boulder opal
Zoom 7.75 Ct colourful boulder opal
Zoom 7.75 Ct colourful boulder opal
Zoom 7.75 Ct colourful boulder opal
Zoom 7.75 Ct colourful boulder opal
Zoom 7.75 Ct colourful boulder opal

7.75 Ct colourful boulder opal

$1,163.00 AUD
A small geometric shaped boulder opal with rainbow colours on a dark background / body tone with a purple hue. Just gorgeous! 7.75 carats. 14.3 x 12.3 mm / 0.56...

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33.58 Ct large boulder opal

Price on Application
Zoom 33.58 Ct large boulder opal
Zoom 33.58 Ct large boulder opal
Zoom 33.58 Ct large boulder opal
Zoom 33.58 Ct large boulder opal
Zoom 33.58 Ct large boulder opal
Zoom 33.58 Ct large boulder opal
Zoom 33.58 Ct large boulder opal
Zoom 33.58 Ct large boulder opal
Zoom 33.58 Ct large boulder opal
Zoom 33.58 Ct large boulder opal

33.58 Ct large boulder opal

Request Price
A large rectangle picture stone boulder opal with very bright greens, oranges and reds. 33.58 carats. 28.7 x 18.8 mm / 1.12 x 0.74". 6.3 mm / 0.24" thick. Natural...

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6.98 Ct ocean tone boulder opal

$838.00 AUD
Zoom 6.98 Ct ocean tone boulder opal
Zoom 6.98 Ct ocean tone boulder opal
Zoom 6.98 Ct ocean tone boulder opal
Zoom 6.98 Ct ocean tone boulder opal
Zoom 6.98 Ct ocean tone boulder opal
Zoom 6.98 Ct ocean tone boulder opal
Zoom 6.98 Ct ocean tone boulder opal

6.98 Ct ocean tone boulder opal

$838.00 AUD
A diamond shaped boulder opal with ocean tones. Truly one-of-a-kind and a perfect size for a ring or pendant. 6.98 carats. 21.7 x 13.6 mm / 0.85 x 0.53". 3.7...

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4.37 Ct small boulder opal

$502.00 AUD
Zoom 4.37 Ct small boulder opal
Zoom 4.37 Ct small boulder opal
Zoom 4.37 Ct small boulder opal
Zoom 4.37 Ct small boulder opal
Zoom 4.37 Ct small boulder opal
Zoom 4.37 Ct small boulder opal
Zoom 4.37 Ct small boulder opal

4.37 Ct small boulder opal

$502.00 AUD
A small geometric boulder opal with lovely pinks and reds. 4.37 carats. 16.4 x 7.5 mm / 0.64" x 0.29". 3.2 mm / 0.12" thick. Natural solid boulder opal. Mined...

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Shipping updates

At Broken River Mining we want to provide you with the best customer service we can. Currently, due to international restrictions, delays of 2 - 4 weeks can be expected for all international orders via Australia Post. Express items will still be given priority during this time, but unfortunately not at their normal speed. All our orders have an Australia Post tracking number and this tracking number can also be used with your country’s local postal network. For example, our United States customers can use their Australia Post tracking number on the United States Postal Service (USPS) tracking website too. Please feel free to contact us if you have any questions and thank you for your patience and support.

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