Rough Australian opal specimens, direct from the mines, in Australia:

2 Rough boulder opal specimens
55 x 40 mm and 65 to 30 mm
Total weight: 65 grams
One stone with brilliant green, the other with brilliant red
The colours show brilliantly when dipped in water

Rough boulder opal specimen
40 x 30 mm
Weight: 35 grams
White opal with various colours

Rough boulder opal specimen
45 x 40 mm
Weight: 55 grams
Crystal opal
with sparkles of green and red colours

3 rough boulder opal specimens

from 70 x 35 to 85 x 40 mm

Total weight: 140 grams
Blue and green opals

3 Rough opal specimens
(Crystal opals in the mother rock)
from 40 x 20 mm to 40 x 30 mm
Total weight: 42 grams
Small brilliant pipe opals with bright colours with red
The colours will show more brilliantly
when dipped in water

4 Rough opal specimens
(Crystal pipe opals in sandstone)
from 50 x 45 mm to 60 x 38 mm
Total weight: 195 grams
Small pipe opals with brilliant colours
The colours will show more brilliantly
when dipped in water

Rough boulder opal specimen
45 x 40 mm
Weight: 46 grams
Various colours that show more brilliantly when dipped in water

Rough opal specimen
70 x 35 mm
Weight: 47 grams
Bright green sparkles of colours

Rough boulder opal specimen
75 x 55 mm
Weight: 93 grams
Blue and green colours

Rough boulder opal specimen
70 x 40 mm
Weight: 85 grams
Blue and green colours
The colours will show more brilliantly when dipped in water

Rough boulder opal specimen
50 x 30 mm
Weight: 30 grams
Bright colors with red
The colours show more brilliantly when dipped in water

4 Rough boulder opal specimens
from 20 x 20 mm to 50 x 35 mm
Total weight: 60 grams
Various colours

2 Rough boulder opal specimens
58 x 30 mm and 70 x 45 mm
Weight: 85 grams
Bright green colours; the biggest stone has some red

Rough boulder opal specimen
45 x 40 mm
Weight: 33 grams
Blue and green colours

Rough boulder opal split

(2 pieces )
50 x 30 mm and 60 x 30 mm
Total weight: 115 grams
Bright colours including red
The colours show more brilliantly
when dipped in water

Rough boulder opal specimen
85 x 55 mm
Weight:136 grams
Green and pink colours

3 Rough opal specimens
from 29 x 20 mm to 40 x 25 mm
Total weight: 37 grams
Brilliant colours

with 2 stones with red
The colours show more brilliantly
when dipped in water

4 Rough opal specimens
(Crystal pipe opals in the mother rock)
from 26 x 17 mm to 53 x 26 mm
Total weight: 100 grams
Small brilliant pipe opals, some with brilliant green, others with brilliant red

The colours will show more brilliantly when dipped in water

Rough boulder opal specimen
85 x 60 mm
Weight: 84 grams
Blue opal with small trace of green

2 Rough boulder opal specimens
40 x 25 mm and 40 x 35 mm
Total weight: 31grams
Various bright colours with red

3 Rough boulder opal specimens
from 35 x 25 mm to 40 x 15mm
Total weight: 51 grams
Bright blue and green colours

2 Rough boulder opal specimens
30 x 17 mm and 35 x 20 mm
Total weight: 19 grams
Very bright colours with red

Rough boulder opal specimen
78 x 40 mm
Weight: 113 grams
Sparkling dark blue colour

Rough boulder opal specimen
75 x 65 mm
Weight: 115 grams
Various colours with a large spot of bright opal with red which could cut a stone

Rough boulder opal specimen with opal on 4 sides
60 x 50 mm x 30 mm thick
Weight: 168 grams
Variety of blue and green colours on the 4 sides of the stone

Large rough boulder opal specimen
142 x 83 x 40 mm of maximum thickness
Weight: 640 grams
Bright green colours

Large rough boulder opal specimen with a large face of opal partly uncovered
200 x 100 x 40 mm of maximum thickness
Weight: 740 grams
Crystal opal with light bright colours
The mother rock still covering part of the opal seam in the centre could be removed to produce a very large face of opal

Rough boulder opal specimen with 5 faces of opal around it
120 x 80 x 70 mm of maximum thickness
Weight: 930 grams
Crystal opal with a mixture of bright light colours all around

Looks like a mesa with opal walls

Rough boulder opal specimen with opal on 2 sides
160 x 83 x 54 mm of maximum thickness
Weight: 1170 grams
Thick band of opal on 2 sides: mixed colours with bright green line on one side

Could be sawn in the center lenghtwise to obtain 2 specimens

Rough boulder opal specimen with 2 faces of opal:

one face 135 x 45 mm - the other face 75 x 50 mm
Triangular shape: 165 x 135 x 75 mm of maximum thickness
Weight: 700 grams
2 faces of opal with green colours

Rough boulder opal specimen with 3 faces of opal not entrely uncovered
92 x 63 x 57 mm high
Weight: 482 grams
Very good colours with some red
1 extra opal seam has not been opened
Could be fully uncovered and polished as a whole,
or stones could be cut out of it

Very big rough boulder opal specimen

( half split from RBS2200 )
175 x 95 x 72 mm of maximum thickness
Weight: 1850 grams (1.850 kg )
Brilliant golden green colours with some pink and red colours
Could cut several stones

Very big rough boulder opal specimen

( half split from RB1850 )
207 x 120 x 47 mm of maximum thickness
Weight: 2200 grams (2.2 kgs)

There is another seam of opal on the back still to be uncovered which should yield another face of opal the same size as the one already opened
Brilliant golden green colours with some pink and red colour
Could cut several stones

Rough boulder opal specimen with some crystal opal and darker opal with 3 faces of opal

:The left face is partly unopened on the left hand side;

The right hand side face has the majority of the opal unopened in the center

and another full vein of opal is unopened
126 x 70 x 58 mm high
Weight: 634 grams.
Very bright colours with some red
Could be fully uncovered and polished as a whole,
or stones could be cut out of it