Black Boulder Opal
Lovely green blue pear shaped black boulder opal stone in drop shape to suit nice pendant
Størrelse: 18×7 mm
Total Carats: 4.3
Form: Free Form
Oprindelse: Winton or Quilpie Australia
Forsendelse: Free to your door or post office box by registered mail.
Emballage: Black velvet pouch or gem box
Description of this opal:
This quality Sort kampesten opal comes from the Western Queensland Opal fields. Sten som denne bliver sjældnere, efterhånden som opalmarkerne er ved at løbe tør. Prisen på Opal, unlike many gemstones is influenced by supply and demand, ikke af internationale karteller, der er enige om prisstigninger.
Derfor, opal is destined to go up in value as the supply becomes more restricted which is happening at present. The color of these stones is completely natural, in contrast to diamonds [for eksempel] which depends on man-made facets to reflect the spectrum colors.
Many Boulder Opals are presented with some of their ‘mother’ ironstone showing in the foreground. This often adds to the interest of the opal piece because the patterns and shapes that present themselves often stimulate the imagination, much like the clouds in a clear blue sky.
Some of these lovely pieces conjure the imagination and can be called ‘picture’ or ‘personality’ opaler. I dette tilfælde, the ironstone shows brilliant flecks of gem opal color, against the black boulder ironstone and are like stars in the sky. The ironstone ‘mother’ holds the ‘baby’ which is the opal. Hence the term: ‘matrix’ (mother) opal.
Where did it come from?
Boulder Opal is from Queensland and is also a variety of sort opal if it is found with a dark or black background similar to Lightning Ridge Opal.