Australian Boulder Opal - 13.97 Cts - 26.6x13.3x5.5mm

Australian Boulder Opal - 13.97 Cts - 26.6x13.3x5.5mm

$388.00
Sale: $291.00
Save: 25% off

When we started our online business about 10 years ago, one of the first varieties of colored gem stones I was exposed to was the boulder opal, and it captured me then and still does to this day. An excellent play of color no matter how it's viewed, it's one of those rare creatures, that not many people have been exposed to. Similar in some regards to a black opal, because of its dark backround, and multi color face. Boulder opal is found mostly in Queensland, Australia where precious opal forms in veins and patches within brown ironstone boulders, hence the name. Hardness ranges between 5.5 and 6 on the Mohs scale. Boulder opal is pretty durable due to the ironstone backing the opal forms on. it's water content is very low, so it almost never cracks as it ages. We came across this particular piece at the Las Vegas gem show, but it's the spark the fed the fire, as after we saw it we made plans to go to Australia in August to bring some more back for our clients.



All gemstones in our inventory and our jewelry are Natural mined gemstones, NONE are lab created,lab Grown,man made, or synthetics
  Opal Variety   Opal Composition   Dominant Fire Color
  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.  x Solid Opal-Opal is left in its natural state and simply shaped and polished   Red
  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. x Blue
x 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   Green
  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.        Yellow
  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 darkness       Orange
  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       Purple
Shape:
Freeform
Size:
13.3x5.5mm
Color:
Multicolor
Origin:
Australia
Model:
BOPAL1397
Availability:
1 Units in Stock

When we started our online business about 10 years ago, one of the first varieties of colored gem stones I was exposed to was the boulder opal, and it captured me then and still does to this day. An excellent play of color no matter how it's viewed, it's one of those rare creatures, that not many people have been exposed to. Similar in some regards to a black opal, because of its dark backround, and multi color face. Boulder opal is found mostly in Queensland, Australia where precious opal forms in veins and patches within brown ironstone boulders, hence the name. Hardness ranges between 5.5 and 6 on the Mohs scale. Boulder opal is pretty durable due to the ironstone backing the opal forms on. it's water content is very low, so it almost never cracks as it ages. We came across this particular piece at the Las Vegas gem show, but it's the spark the fed the fire, as after we saw it we made plans to go to Australia in August to bring some more back for our clients.



All gemstones in our inventory and our jewelry are Natural mined gemstones, NONE are lab created,lab Grown,man made, or synthetics
  Opal Variety   Opal Composition   Dominant Fire Color
  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.  x Solid Opal-Opal is left in its natural state and simply shaped and polished   Red
  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. x Blue
x 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   Green
  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.        Yellow
  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 darkness       Orange
  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       Purple

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