Opal and Gemstone Store

Boulder Opal & Boulder Opal Carvings

Boulder Opal. Mineshaft has a large range of Boulder Opal and Boulder Opal carvings. Boulder opal is the term used for opal that occurs in ironstone boulders. The opal infills cracks within the boulder creating a unique type of opal. Peter had two boulder opal mines in Queensland. His Rainbow opal mine provides a lot of the boulder opal in Mineshaft. This has been cut into stones and also used for unique carvings and polished collectables. Click on the images to see a full size picture.

Our Rainbow Opal Mine..Remote south west Queensland

Rough boulder opal by the drum

Half a small Boulder

This is a really nice fist size half boulder. Weighing 359 grams it is great value for just A$100. Click on image for a larger picture.

Large carving in Boulder Opal of a group of frogs

Close up of carved frog in Boulder Opal

Boulder opal carving of frog family. There is quite a lot of good quality boulder opal in this piece and we could have cut gemstones from it. This boulder opal carving has been master carved. It measures 18cm by 10 cm by 8cm and weighs 1.39 kilo. There are 5 frogs in the carving. The pictures do not do justice to the opal or the carving and it is far more beautiful when you see it. The price of this piece is A$4000 plus postage.

Elephants in Boulder Opal.

Close up of elephants in the same Boulder Opal carving

Top view of same Boulder Opal elephant carving

Back of same Boulder Opal elephant carving

This is a large Boulder Opal carving of a group of Elephants. The carving weighs 2.55 kilo and is priced at A$800. Click on the image for a larger picture.

BOULDER OPAL FROGS

A nice carving of two frogs on a lily pad. The Boulder has taken a high polish and there are some thick veins of opal running through it. The price is A$600. Click on image for a larger picture.

Boulder Opal Lizard carving

This piece of Boulder Opal is from our Rainbow mine. It has a Lizard carved on the side It measures 105mm by 69mm by 31mm and weighs 299 grams. The price is A$300. Click on image for a larger picture.

Boulder opal frog carving

A nicely carved boulder opal frog from our Rainbow mine. It measures 78mm by 50mm by 32mm. It weighs 180 grams. The price is A$200. Click on image for a larger picture.

Runnin Rabits in BOULDER

A nice carving in two tone Boulder. Not a lot of actual opal but a beautiful carving with a high polish. The price is A$450. Click on image for a larger picture.

There are more Boulder Opal carvings lower down the page.

Boulder Opal Sphere

This is a highly polished 35mm sphere in Boulder Opal Matrix. It weighs 66 grams and the price is A$80.

Boulder opals

Here are 6 boulder opals. Click on image for a bigger picture.

Boulder Opal

This boulder opal has a wonderful pattern. It weighs 22 carats and measures 21 mm x 14 mm x 8 mm. The price is A$200 plus postage. Click on image for more detail.

Boulder Opal

This Boulder Opal is a nice blue and quite large at 28 carats. The price is A$300 plus postage. Click on omage for a larger picture.

Boulder Opal (19.3 carats)

This Boulder Opal has a very bright flash. The opal measures 22 mm x 16 mm and eighs 19.3 carats. The price is A$200 plus postage. Click on image for a larger picture.

Boulder Opal 15.3 carats

This is a lovely blue/green Boulder Opal. It weighs 15.3 carats and measures 24 mm x 13mm. The price is A$500 plus postage. Click on image for a larger picture.

Boulder Opal 17.6 carats

This boulder has nice contrast between opal and boulder. It weighs 17.6 carats and measures 20 mm x 11 mm. The price is A$200 plus postage. Click on image for a larger picture

Boulder Opal 7.3 carats

This is a nice inexpensive boulder opal. It measures 18 mm x 12 mm. The price is A150 plus postage. Click on image for larger picture.

Boulder opal 7.9 carats

This is a nice boulder opal. It measures 13 mm x 12 mm. The price is A$250 plus postage. Click on image for larger picture.

Boulder Opal 9.2 carats

This boulder opal is nice and bright. It measures 20 mm x 12 mm and weighs 9.2 carats. The price is A$150 plus postage. Click on image for a larger picture.

Boulder Opal 11.9 carats

This boulder opal measures 20 mm x 11 mm. It weighs 11.9 carats and the price is A$150 plus postage. Click on the image for a larger picture.

Boulder Opal 12 carats

This Boulder opal measures 18 mm x 12 mm. It weighs 12 carats. The price is A$159 plus postage. Click on the image for a larger picture.

Boulder opal 18.7 carats

This boulder opal is on a jet black base. It measures 17 mm x 15 mm x 9 mm and weighs 18.7 carats. The price is A$150 plus postage. Click on the image for a larger picture.

Boulder Opal 26.9 carats.

This piece of boulder has nice strong blue opal veinlets. It weighs 26.9 carats and measures 30 mm x 21 mm. The price is A$150 plus postage. Click on image for a larger picture.

Boulder opal 38.7 carats

This piece of boulder is laced with veinlets of nice opal. It weighs 38.7 carats and measures 26 mm x 20 mm. The price is A$300 plus postage. Click here for a larger picture.

Boulder opal 105 carats

This is a big piece of Boulder opal. It weighs 105 carats and measures 37 mm x 27 mm x 14mm The price is A$150 plus postage. Click on image for a larger picture.

3 large matched Boulder Opal pairs

Here are 3 interesting large matched pairs of Boulder opal. Great value for $100 pair. Click on image for a larger picture.

Large Boulder Opal picture stone

This is a larger Boulder Opal picture stone with wonderful patterns. It weighs 100 carats and the price is A$300/ Click on image for a larger picture.

Boulder opal piece

This is a nice piece of boulder opal. It weighs 177 carats and measures 40mm x 20 mm x 20 mm. The price is A$250 plus postage. Click on image for a larger picture.

Boulder Opal polished collectable piece

Same Boulder Opal picture of top

This is a nice collectable piece from our Rainbow mine. It weighs 214 carats and costs A$300. Click on image for a larger picture.

Pair Boulder Opal (free standing)

Close up same pair

A beautiful pair. These make a very pretty free standing colectable pair. The total weight is 449 carats. The price is A$500 pair. Click on image for a larger picture.

Tray of Boulder Opal

A selection of boulder opals. Click on image for a bigger picture.

$100 boulder opals

Here is a selection of boulder opals at A$100 each plus postage. Buy 6 for A$500. Send us an e mail for a picture of some more. Click on image for a bigger picture. Click again for an even bigger image.

$50 boulder opal selection

Here is a selection from our A$50 (plus postage) each boulder opals. Buy 12 for A$500. Send us an e-mail for more pictures. Click on picture for a bigger image.

$25 Boulder Opals

Here is a selection from our A$25 (plus postage) boulder opals. Buy 12 pieces for A$250. Click on image for a larger picture

Boulder opal carving of Lizard family

Boulder opal carving of Lizard family. This is a carving with extreme detail. It is NOT your normal boulder opal carving.

Boulder Opal Lizard family

Close up Boulder opal lizards

This boulder opal carving of a lizard family has been master carved and the boulder opal is laced with bright veinlets of opal. The carving measures 21cm x 18cm x 9cm. The price is A$4000 plus postage. Click on image for a larger picture.

Large Boulder opal owl

Close up of owl

This boulder opal carving of an owl has a lot of opal in it. It is quite a large carving measuring 140 mm x 80 mm x 60mm. The price is A$650 plus postage. Click on the image for a larger picture.

Boulder opal owl

Close up Boulder Opal Koala

This is a nice boulder opal carving with lots of opal in the boulder. It is quite large measuring 120 mm x 80 mm x 50 mm. The price is A$1000 plus postage. Click on the image for a larger picture.

Boulder opal fish

This is a really nice boulder opal carving. The boulder has taken a great polish and the opal has nice colour in it. The external round shape of the original boulder is still intact. The price is A$300 plus postage.

Large boulder opal fish

This boulder opal carving of a fish has been carved from the same boulder as the one above. It is more then twice the weight and has carved fish on three sides. There are 5 thick seams of nice opal in the carving. The fourth side is the natural skin of the round boulder and shows nice blue colour. Below are two more pictutes.

Back of Boulder Opal fish carving

Fourth side showing original boulder

This boulder opal carving measures 90 mm x 80 mm x 50 mm. The price is A$1,500 plus postage. Click on image for a larger picture.

Boulder Opal crocodile

This is a boulder opal carving of a crocodile. It has only fine veinlets of opal but the boulder is very dark and it is really well carved with a strong polish. The price is A$200 plus postage. It measures 90 mm x 60 mm x 30mm and weighs 865 carats. Click on image for a larger picture.

Boulder opal crocodiles

This is quite a large boulder opal carving of two crocodiles. The opalveinlets are blue potch opal. The carving measures 130 mm x 110 mm x 33 mm. The price is A$550 plus postage. Click on the image for a larger picture.

BOULDER OPAL Elephants

Close up same carving

This is a nicely carved group of elephants in boulder opal. The price is A$600. Click on image for a larger picture.

Boulder Opal specimen (unpolished)

This is an unpolished piece of boulder opal. The opal is very flashy with greens and blues. The piece measures 75 mm x 35 mm x 30 mm and weighs 563 carats. The price is A$290 plus postage. Click on image for larger picture.

Boulder Opal specimen

This is a nice specimen of uncut boulder opal. It has nice green colour. The specimen measures 60mm by 57mm by 55mm and weighs 371 grams. The price is A$200.