Polished natural Australian opal specimens,
direct from the mines.

   

Natural Australian boulder matrix opal specimen with the face polished
from Opalton via Winton, Queensland
57 x 36 mm x 8 mm of thickness
Weight: 20 grams
Small veins of bright multicolored opal

 

Natural Australian boulder matrix opal specimen with the face polished
from Opalton via Winton, Queensland
55 mm x 36.5 mm x 13 mm of maximum thickness
Weight: 31.9 grams
Bright green sparkles of colour

   

Natural Australian boulder matrix opal specimen with the face polished
from Opalton via Winton, Queensland
41 x 42 mm x 15 mm of thickness
Weight: 41 grams
Inclusions of bright multicolored opal

   

Natural Australian boulder matrix opal specimen with the face polished
from Opalton via Winton, Queensland
53 x 33 mm x 21 mm of thickness
Weight: 47 grams
Inclusions of bright multicolored opal

     

Polished specimen of a natural Australian opal in the mother rock (sandstone)
from Opalton, Queensland
41 x 28 mm of max. width x 11 mm of max. thick
Weight: 70.5 carats (14 grams)
Inclusions of blue opal on both sides
Solid opal with a few small cracks at a reduced price

   

Natural Australian boulder matrix opal specimen with the face polished
from Opalton via Winton, Queensland
69 x 49 mm x 13 mm of thickness
Weight: 62 grams
Inclusions of bright multicolored opal

 

Natural Australian boulder opal matrix specimen with the face polished
from Opalton via Winton, Queensland
57.7 mm x 53 mm of max. width x 18 mm of maximum thickness
Weight: 57.8 grams
Blue and bright green colours

   

Natural Australian boulder opal matrix specimen with the face polished
from Opalton via Winton, Queensland
56 x 40 mm of max. width x 8 mm of maximum thickness
Weight: 13.5 grams (67.9 carats)
Sparkles of bright red colours

   

Polished natural Australian boulder matrix opal specimen
from Opalton via Winton, Queensland
75 x 60 mm x 20 mm of maximum thickness
Weight: 115 grams
Bright sparkles of green and red colours on both sides
Only one side is polished

 

Big natural Australian boulder matrix opal specimen with the face polished
from Opalton via Winton, Queensland
92 x 63 mm x 17 mm of thickness
Weight: 126 grams
Inclusions of bright multicolored opal

   

Big natural Australian boulder matrix opal specimen with the face polished
from Opalton via Winton, Queensland
99 x 49 mm x 14 mm of thickness
Weight: 127 grams
Inclusions of bright multicolored opal

   

Natural Australian boulder opal matrix specimen polished all around
from Opalton via Winton, Queensland
45.4 mm x 33 mm x 12 mm of maximum thickness
Weight: 21.62 grams
Bright various colours with red

   

Natural Australian boulder opal matrix specimen polished all around
from Opalton via Winton, Queensland
52 mm x 37 mm x 16 mm of maximum thickness
Weight: 50.9 grams
Bright multicoloured flickers of colours with red on both sides ( not well captured by camera)

     

Polished natural Australian boulder opal specimen
from Winton area, Queensland
75 mm x 55 mm x 12 mm of maximum thickness
Weight: 84 grams
Various colours

 

Natural Australian boulder opal matrix specimen with the face polished
from Opalton via Winton, Queensland
74 mm x 68 mm x 15 mm of maximum thickness
Weight: 109.2 grams
Bright green sparkles of colour

 

Very big Polished natural Australian boulder opal matrix band specimen
(RARE) from Opalton via Winton, Queensland
90 x 80 mm x 15 mm of maximum thickness
Weight: 231 grams
Bright red and green sparkles of colours
Only the face is polished and the sandstone back is only sanded

   

Natural Australian boulder opal matrix specimen polished all around
from Opalton via Winton, Queensland
39.4 mm x 29 mm x 11 mm of maximum thickness
Weight: 27 grams
Bright sparkles of colours with red ( not all visible on the picture)
Could be set as a pendentif

       

Polished natural Australian boulder opal specimen
from Winton area, Queensland
68 x 45 mm x 8 mm of maximum thickness
Weight: 64.8 grams
Mostly green colours with some bright green

   

Polished natural Australian boulder opal matrix specimen
from Winton area, Queensland
75 mm x 66 mm x 16 mm of maximum thickness
Weight: 98 grams
Bright various colours

       

Polished natural Australian boulder opal specimen
from Winton area, Queensland
57 x 50 mm x 20 mm of maximum thickness
Weight: 92 grams
Various colours with green and pink

       

Polished natural Australian boulder opal specimen
from Winton area, Queensland
105 x 45 mm x 18 mm of max. thickness
Weight: 174 grams
Waves of blue and bright green colours

 

Natural Australian boulder opal matrix specimen highly polished all around
from Opalton via Winton, Queensland
57 mm x 40 mm x 16.7 mm of maximum thickness
Weight: 74.9 grams
Bright various colours with red

   

Australian boulder opal specimen with the face polished
from Opalton via Winton, Queensland
21 x 19 mm x 11 mm thick
Weight: 6.8 grams (34 carats)
Gem quality boulder opal with various colours

   

Specimen of natural Australian crystal opal
in the mother rock (sandstone)
with the opal face polished
from Opalton via Winton, Queensland
18 x 14 mm x 9 mm thick
Weight: 3.73 grams (18.65 carats)
Bright green crystal opal
The opal has a crack across the face,
and 2 beautiful cut opals could be made out of this stone

     

Polished natural Australian boulder opal specimen
from Opalton, Queensland
32 x 25 mm x 12 mm of max. thick
Weight: 79 carats (15.8 grams)
Some green colours with a lot of bright red colours

     

RARE Australian treated matrix opal specimen
from Andamooka, South Australia
34 mm x 20 mm and 12 mm wide x 6 mm thick
Weight: 28.5 carats
Black matrix opal with bright various colours with red
Could be made into a beautiful opal pendant

     

Polished natural Australian opal matrix
from Andamooka, South Australia.
71.6 mm x 25 mm x 11 mm of maximum thickness
Weight: 12.2 grams (61 carats)
Bright various colours with red
This matrix is not treated (RARE)
Could be made into an opal pendant