Boulder of Opal Specimen (Droye)
Lot 2166
Boulder Opal Specimen
US$ 6,000 - 8,000
£3,600 - 4,800
Lot Details
Boulder Opal Specimen
Queensland, Australia
Displaying a rich tapestry of colors, flashes of indigo, green, orange and yellow are seen in the opal veining in this superlative boulder opal specimen. Originally begun as a nodule, over time, mineral-bearing waters, rich with the silica and iron that form opal, seeped in to fill the voids—forming a "pool of opal" inside the large concretion. When the concretion dried, voids and cracks formed inside the ironstone created the interesting veining seen here. The exposed opal has a natural polish without any enhancement or interference by man, giving it a vitreous surface luster.
Measures 5 ½ x 3 ¼ x 1in
  1. Tom Lindgren
    Specialist - Natural History
    7601 W. Sunset Boulevard
    Los Angeles, 90046
    United States
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