WHAT IS PIPE CRYSTAL BOULDER OPAL?

Pipe Crystal Boulder Opal is a type of boulder opal that has only been found exclusively in Queensland, Australia to date. It is formed in round tubular holes in boulder sandstone rocks. Usually, the darker the sandstone, the darker the colours are in the opal.Read More


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214.9 Carat Large Double Sided Wood Fossil Boulder Opal Specimen

$3,500.00 $2,625.00

Stunning Double Sided Sky Blue Wood Fossil Koroit Boulder Opal

$2,250.00 $1,687.50

141.20 Carat Large Wood Fossil Boulder Opal Specimen

$1,750.00 $1,312.50

123.7 Carats Rare Wood Fossil Boulder Opal

$1,200.00 $900.00

120.55 Carats Rare Wood Fossil Boulder Opal

$1,200.00 $900.00

Stunning Forrest Green Wood Fossil Boulder Opal 12.5 ct

$1,200.00 $900.00

113.85 Carats Wood Fossil Boulder Opal

$825.00 $618.75

52.7 Carats Beautiful Bright Blue Polished Yowah Nut

$800.00 $600.00

58.05 Carats Rare Wood Fossil Boulder Opal

$725.00 $543.75

71.65 carat Double Sided Large Boulder Opal

$685.00 $513.75

Gorgeous Triangular Wood Replacement Boulder Opal Stone

$325.00 $243.75

15.75 Carats Electric Rolling Flash Pipe Boulder Opal

$320.00 $240.00

72.6 Carats Beautiful Koroit Boulder Opal

$275.00 $206.25

43.4 Carat Double Sided Wood Fossil / Replacement Boulder Opal

$265.00 $198.75

50.3 Carat Wood Fossil / Replacement Boulder Opal

$265.00 $198.75

50.75 Carat Wood Fossil / Replacement Boulder Opal

$255.00 $191.25

39.15 Carat Wood Fossil Boulder Opal

$250.00 $187.50

Wood Boulder Opal Stone

$235.00 $176.25

55.5 Carat Wood Fossil / Replacement Boulder Opal

$220.00 $165.00

46.1 Carat Wood Fossil / Replacement Boulder Opal

$215.00 $161.25

29.7 Carats Gorgeous Wood Boulder Opal

$195.00 $146.25

7.5 Carats Koroit Boulder Opal

$175.00 $131.25

96.4 Carats Wood Fossil Replacement Boulder Opal

$155.00 $116.25

Light Green Electric Color Play Quilpie Wood Replacement Opal

$155.00 $116.25

59.9 Carats Wood Fossil Replacement Boulder Opal

$135.00 $101.25

9.55 Carat Beautiful Green Shimmer Wood replacement Boulder Opal

$125.00 $93.75

29.6 Carats Yowah Boulder Opal

$120.00 $90.00