1) Abundant gemstone Down Under 2) An October birthstone 3) Another October birthstone 4) Apple cultivar 5) Apt name for a gemologist 6) Aussie gem 7) Aussie gemstone 8) Aussie mine find 9) Australian brand 10) Australian export 11) Australian gem 12) Australian gemstone 13) Australian mine find 14) Australian mine yield
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https://www.crosswordclues.com/clue/opal
1) Birthstone 2) Girasol
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https://www.crosswordclues.com/clue/opal
Opal is a hydrated amorphous form of silica; its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Because of its amorphous character, it is classed as a mineraloid, unlike the other crystalline forms of silica, which are classed as minerals. It is deposited at a relatively low temperature and may occur in the fiss...
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http://en.wikipedia.org/wiki/Opal
[apple] Opal is the brand name for a variety of apple produced by crossing Golden Delicious with Topaz. Developed by the Institute of Experimental Botany in Prague and FruitSelect in 1999, it is grown by Broetje Orchards in Washington and marketed by the First Fruits company. It is also cultivated in Austria, the Netherlands and France. Opa...
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http://en.wikipedia.org/wiki/Opal_(apple)
[fuel] Opal is a variety of low-aromatic 91 RON petrol developed in 2005 by BP Australia to combat the rising use of petrol as an inhalant in remote Indigenous Australian communities. Though more expensive to produce, requiring a $0.33/litre Federal subsidy, a 2006 report found it would likely save at least $27 million per year when the soc...
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http://en.wikipedia.org/wiki/Opal_(fuel)
[given name] Opal is a feminine given name derived from the name of the gemstone opal. The gemstone is the birthstone for October. Its name is derived from the Sanskrit उपल or upala, which means `jewel. It came into use along with other gemstone names during the late Victorian era. Opal was among the 100 most popular names for girls b...
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http://en.wikipedia.org/wiki/Opal_(given_name)
[programming language] OPAL (OPtimized Applicative Language) is a functional programming language first developed at the Technical University of Berlin. ==Example program== This is an example OPAL program, which calculates the GCD recursively. Signature file: Implementation file: ...
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http://en.wikipedia.org/wiki/Opal_(programming_language)
[software] The Garden album cover ...
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http://en.wikipedia.org/wiki/Opal_(software)
• (n.) A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity.
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http://thinkexist.com/dictionary/meaning/opal/
silica mineral extensively used as a gemstone, a submicrocrystalline variety of cristobalite (q.v.). In ancient times opal was included among the ... [3 related articles]
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http://www.britannica.com/eb/a-z/o/22
(Orbiting PicoSat Launcher) A small Stanford University satellite, launched from the JAWSAT payload adaptor on Jan. 26, 2000, and which in turn deployed six even smaller picosatellites. Two of these picosatellites were tethered and built by the Aerospace Corporation for ARP...
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http://www.daviddarling.info/encyclopedia/O/OPAL.html
<chemical> A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity. ... The precious opal presents a peculiar play of colours of delicate tints, and is highly esteemed as a gem. One kind, with a varied play of colour in a reddish ground, is called the harlequin opal. The fire opal has colours like...
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http://www.encyclo.co.uk/local/20973
A semi-precious stone with a rainbow-like iridescence. Defined as three types: opalescent precious opals, yellow-red fire opals, and the common opal.
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http://www.encyclo.co.uk/local/22290
O'pal noun [ Latin
opalus : confer Greek ..., Sanskrit
upala a rock, stone, precious stone: confer French
opale .]
(Min.) A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity. » The
precious opal presents a pecul...
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http://www.encyclo.co.uk/webster/O/22
Opal is an amorphous, or non-crystalline form of silica with the formulae SiO2ùnH2O and a relative hardness of 6. It is always a secondary mineral, found lining and filling cavities in igneous and sedimentary rocks where it has been deposited by hot waters. The ordinary varieties are common but the precious varieties are quite valuable. Opal is al...
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http://www.probertencyclopaedia.com/browse/HO.HTM
An irridescent semiprecious stone with inclusions of many colours that give it fire, and a high water content. Opals have a hardness of 5.5-6.5 on the Mohs Scale
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http://www.saffronart.com/sitepages/jewelry/glossary.aspx
Designation for the opaque, deep dark red colour of a wine in the context of a wine address. This is derived from the often opaque gemstone of the same name. The term opaque is similar in meaning.
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https://glossary.wein.plus/opal
Older People with Active Lifestyles - a demographic grouping.
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https://www.encyclo.co.uk/local/20161
noun a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones
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https://www.encyclo.co.uk/local/20974
Form of hydrous silica (SiO
2.
nH
2O), often occurring as stalactites and found in many types of rock. The common opal is translucent, milk-white, yellow, red, blue, or green, and lustrous. Precious opal is opalescent, the characteristic play of colours being caused by close-pack...
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https://www.encyclo.co.uk/local/21221
Older People with Active Lifestyles - demographic group.
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https://www.encyclo.co.uk/local/21395
An opal is a gemstone that has a mesmerizing spectrum of colors from nearly opaque white to even dark browns or blacks. It is the official gemstone of Australia which produces over 95% of the worlds supply.
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https://www.encyclo.co.uk/local/22607
(Hydrated Silica Glass) Opal has been a popular gem for many centuries and has a very interesting structure. Opal is considered a mineraloid because this structure is not truly crystalline. The chemistry of Opal is primarily SiO
2 and varying amounts of water. The amount of water varies from 5% to 1...
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https://www.encyclo.co.uk/local/23719
a mineral, an amorphous form of silica, SiO with some water of hydration, found in many varieties and colors, including a form that is milky white. · an iridescent variety of this that is used as a gem. · a gem of this.
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https://www.infoplease.com/dictionary/opal
Opal is a Hindustani name for girls. The meaning is `gem, jewel` The name Opal is most commonly given to American girls. The name sounds like: Apple, Abila
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https://www.pregnology.com/names/girls/Opal
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