Opal Endeavours

Natural Australian Boulder Opal & Opal Jewellery

Every Item Is Unique!
14ct Yellow Gold Crystal Opal Set FG922
[14ct Earrings and Pendant]		 AUD$638.00
 

Pretty green crystal opal earrings and pendant set in solid 14ct yellow gold with 0.024ct diamond in pendant and 0.023ct diamond in each earring. The crystal opal is from the pipe opal section of our mine in the Quilpie mining district of western Queensland.

Stone size: 10mm x 5mm (pendant), 8mm x 4mm (earrings)

Pendant length: 20mm, Earring length: 18.5mm

Inside bail width: 1.7mm wide x 3mm long.

Price is for the set. Comes GIFTBOXED with FREE gold plated chain.

What is Boulder Opal?

Boulder opal is the term used to describe precious opal that has formed as part of ironstone boulders by impregnating the boulder and in-filling cavities and cracks (either partially or fully).

The opal quality may be uniform throughout the vein or may vary with different patterns and colours.  Potch bars or intrusions of potch and ironstone will affect quality.

The larger and more uniform patterns of colour are generally found in horizontal veins and pockets. The vertical veins generally produce bar patterns and can also carry gem colour and patterns.

Advantages of Boulder Opal

  • Generally cheaper than a similar looking black opal
  • Larger faces and stones are more readily available
  • Wider range of colours (eg: white, crystal, black)
  • Found only in Queensland, Australia

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    Colourful Carbonised Sandstone Matrix (Fairy Opal)
    Solid Queensland sandstone matrix opal displaying sparkles of red amongst other colours. This also has solid pipes down the face of the showing pastel colours. This piece has been carbonised (blackened) to bring out the colour of the opal. It is found on the Queensland opal fields in association with pipe opal. It has been stabilised with polymer resin to maintain strength and durability.Stone size: 46mm x 24mm x 4mm thick.Stone weight: 71cts
    Solid Queensland sandstone matrix opal displaying sparkles of red amongst other colours. This also has solid pipes down the face of the showing pastel colours. This piece has been carbonised (blackened) to bring out the colour of the opal. It is found on the Queensland opal fields in association with pipe opal. It has been stabilised with polymer resin to maintain strength and durability.

    Stone size: 46mm x 24mm x 4mm thick.

    Stone weight: 71cts (opal FO010A)
       SOLD
    Soft Green Australian Pipe Boulder Opal
    Silky green moves across this face of this solid pipe opal from our mine in the Quilpie district in western Queensland. It has natural adhering sandstone still on the back. Pipe opal occurs when fragments of tree roots or any organic material are trapped in sediments on an opal level and in time some of resulting cavaties are replaced by potch or precious opal. The sandstone has been stabilised with a polymer resin to increase strength and durability and avoid chipping during setting process. (Solid Opal - Not a doublet)Stone size: 9mm x 6.5mm x 3mm thickStone weight: 1.78cts
    Silky green moves across this face of this solid pipe opal from our mine in the Quilpie district in western Queensland. It has natural adhering sandstone still on the back. Pipe opal occurs when fragments of tree roots or any organic material are trapped in sediments on an opal level and in time some of resulting cavaties are replaced by potch or precious opal. The sandstone has been stabilised with a polymer resin to increase strength and durability and avoid chipping during setting process. (Solid Opal - Not a doublet)

    Stone size: 9mm x 6.5mm x 3mm thick

    Stone weight: 1.78cts (Australian Pipe Opal K098)
      AUD$74.25