Australian Boulder Opal - 14.07 Carats - 27x13.2mm
A sharp piece of boulder opal we found at the Las Vegas gem show a few years back, and just found it in a bin in one of our safes. Great play of color.
All gemstones in our inventory and our jewelry are Natural mined
gemstones, NONE are lab created,lab Grown,man made, or synthetics
Black Opal-Black opals are dark
colored opal with internal reflections of green or red, and are usually mined
in Lightning Ridge, New South Wales.The term 'black opal' does not mean that
the stone is completely black (a common mistake), it simply means the stone
has a dark body tone in comparison to a white opal.
Solid Opal-Opal is left in its
natural state and simply shaped and polished
White Opal- White opals (or
sometimes called Light Opal) can range from transparent or translucent, to
opaque with a creamy hue, displaying soft pastel shades of color.
Opal Doublet-A thin layer of
opal that show enhanced color with a dark backing of either blac/greycolored
silica material, or sometimes a thin slice of common opal cemented to the
back of the opal with epoxy resin.
Boulder Opal-Boulder opal is
classified as solid opal. It occurs as thin veins of opal in the cracks and
cavities of light and dark brown ironstone boulders in Queensland.
Opal Triplet-A triplet opal is
similar to a doublet with a few minor differences. A triplet has a dark
backing like mentioned above for the doublet, it has a wafer thin slice of
opal in the middle (sometimes, no thicker than a sheet of paper), topped with
clear glass, quartz, or plastic capping in the shape of a dome
Crystal Opal-Crystal opal refers
to any kind of opal (examples. black opal,white opal,semi-black opal)boulder
opal) which has a transparent, translucent, or semi-translucent body.
Matrix Opal-Matrix opal is a
peculiar formation of boulder opal, whereby rich flashing colors of opal are
scattered throughout the brown ironstone like the christmas lights in the
Fire Opal-Fire opal are
transparent to translucent opals generally with rich body colors of yellow,
orange, orange-yellow or red. They do not usually show any play of color