Three pieces of blue opal

Three pieces of blue opal

E425/0536 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 31.1MB

Downloadable file size: 1.7MB

Price image Pricing

Please login to use the price calculator


Caption: Opal. Three pieces of blue, iridescent opal. Opal is composed of microspheroids of hydrous silicon oxide. It is the refraction of light within these spheroids which gives the mineral its iridescent sheen. This is enhanced by reflections from tiny conchoidal fractures (crazing) which occur on exposure to the air. Opal never occurs in a crystalline form, but as small veins, globules and crusts. Several types occur; colourless, milky white, hazy blue, red (fire opal) and black. There is also a type of fossilised wood know as wood opal. Black and fire opals are particularly valued as gemstones. This specimen was found in Queensland, Australia.

Release details: Model release not required. Property release not required.

Keywords: blue, gem, mineral, opal, precious stone, type

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.