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Australian Opal Cabochon Gemstone Collection 210 carats - Mintabie Mine


Stunning large collection of Mintabie mine opal that has been collected over the last 30 years.  Range of grades from top crystal to white.  Lots of rare shell fossil opal as well.  Sold as a package.
Parcel has being at an average of £125 a carat.  Most material is worth more than this with some being less.  (Material grades from £595 to £55 a carat)
Chance to get a collection that takes a lifetime to produce.  Mintabie mines are now closed to mining so no new material will ever come from this famous area again.
Pictures and video are taken in a range of lights and different cameras.  Professional image was produced in a series for Damien Hirst Science Ltd (main image)
Parcel can be seen by booking appointment


  • Source - Mintabie
  • Size - Mixed, see pictures
  • Weight - 210 carats
  • Base Tone - Crystal to white
  • Fire Colour - All colours 
  • Brightness - All ranges from 3 to 5


Price is for the stone pictured


About Opals from around the world - 


Treatment: Natural

Colours Opal Can Be: Black, White, Blue, Green, Red, Yellow, Pink, Grey, Purple, Orange, Brown

Luster: Pearly, Vitreous, Opalescence

Birthstone zodiac sign: Libra

Associated month: October

Crystal system: Amorphous solid

Chemical formula: SiO₂·nH₂O

Hardness (Mohs hardness scale): 5.5 – 6.5

Country of origin: Australia, Ethiopia, Mexico and Cornwall amazingly 

Size variations: can vary 0.3mm each way on all dimensions given.




In mystical circles, opal is considered a stone representing hope, innocence and purity. It has strong connotations of happiness, faithfulness, loyalty and confidence.  Regarded as a powerful sea stone for safty on the water.


All orders are sent recorded delivery UK and International. 


Australian Opal Cabochon Gemstone Collection 210 carats - Mintabie Mine

SKU: ArthurOpal
£26,250.00 Regular Price
£23,625.00Sale Price
Only 1 left in stock
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