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...

Opal is a contactless smartcard fare collection system for public transport services in the greater Sydney area and most other urban areas of New South...

Starburst (originally known as Opal Fruits) is the brand name of a box-shaped, fruit-flavoured soft taffy candy manufactured by The Wrigley Company, which...

Other notable individual opals: Galaxy Opal Flame Queen Opal Halley's Comet Opal Olympic Australis Opal "The Andamooka Opal Necklace and Earrings". From...

The Open Physics Abstraction Layer (OPAL) is an open source realtime physics engine API similar to PAL. It is currently supported only by ODE, but can...

Twentieth Century Fox, and starring AnnaSophia Robb as Opal Buloni. A 10-year-old girl named India Opal Buloni has just moved to a trailer park in the small...

Opal Lee (born October 7, 1926) is an American retired teacher, counselor, and activist in the movement to make Juneteenth a federally-recognized holiday...

OPAL (OPtimized Applicative Language) is a functional programming language first developed at Technische Universität Berlin. There is a later framework...

Hurricane Opal was a large and powerful Category 4 hurricane that caused severe and extensive damage along the northern Gulf Coast of the United States...