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Opal is a
hydrated amorphous form of
silica (SiO2·nH2O); its
water content may
range from 3% to 21% by weight, but is
usually between 6% and 10%. Due to...
- Look up
opal in Wiktionary, the free dictionary.
Opal is a gemstone.
Opal or
OPAL may also
refer to:
Opal,
Alberta Opal Hills,
Jasper National Park, Alberta...
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Opal Lee (born
October 7, 1926) is an
American retired teacher, counselor, and
activist in the
movement to make
Juneteenth a federally-recognized holiday...
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Opal is a town in
Lincoln County, Wyoming,
United States. The po****tion was 64 at the 2020 census.
Opal is
located at 41°46′14″N 110°19′33″W / 41.77056°N...
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Hurricane Opal was a
large and
powerful tropical cyclone that
caused severe and
extensive damage along the
northern Gulf
Coast of the
United States in...
- The
Opal (1851–1860) is a ten
volume journal written,
edited and
printed by the
patients of the
Utica State Lunatic Asylum,
circa 1851. On its more than...
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opal® is the
brand name for
apple cultivar 'UEB 32642'. The
variety originates from a
natural crossing of 'Golden Delicious' with 'Topaz'.
Developed by...
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Opal is a
variety of low-aromatic 91 RON
petrol developed in 2005 by BP
Australia to
combat the
rising use of
gasoline as an
inhalant in
remote Indigenous...
- The
Galaxy Opal is the world's
largest polished opal,
certified by the
Guinness Book of
World Records in 1992. It was
found at the Boi
Morto Mine in Brazil...
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Other notable individual opals:
Galaxy Opal Flame Queen Opal Halley's
Comet Opal Olympic Australis Opal "The
Andamooka Opal Necklace and Earrings". From...
