Pronunciation: [səlˈɛstiːn] (IPA) 
The word "Celestine" is a bit tricky to spell. It is pronounced /səˈlɛstɪn/ with the stress on the second syllable. The first syllable is pronounced with an unstressed vowel schwa /ə/ sound. As for the spelling, it starts with a "C" followed by an "e," then "l," "e," "s," "t," "i," "n," and ends with an "e." One way to remember the spelling is to associate it with "celestial," which has a similar root and meaning.
Celestine is a noun that refers to a mineral belonging to the strontium sulfate group. It is commonly found in sedimentary rocks and possesses a distinctive blue color, but can also occur in other shades such as white, pink, green, or yellow. Celestine often forms in crystal form, with well-defined faces and pointed terminations.
In terms of physical characteristics, Celestine has a relatively high specific gravity and can be easily cleaved into tabular or prismatic fragments. It has a vitreous to pearly luster and is transparent to translucent. This mineral is also known for its weak to distinct blue fluorescence under shortwave ultraviolet light.
The name "Celestine" is derived from the Latin word "caelestis," meaning celestial or heavenly. This is due to its beautifully soothing blue color that is reminiscent of the sky. It has been highly prized for its aesthetic appeal and is often used in jewelry, ornamental objects, and as a collector's specimen.
In addition to its ornamental uses, Celestine also has industrial applications. It is used in the production of strontium compounds, which are utilized in the manufacturing of fireworks, flares, glass, and ceramics. Furthermore, Celestine deposits are often associated with oil and gas reservoirs, making it an important indicator in petroleum exploration.
Overall, Celestine is a captivating mineral valued for its stunning appearance and diverse usage in various industries.
A mineral, sulphate of strontian, so named in allusion to its sky-blue colour.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The name "Celestine" is derived from the Medieval Latin name "Caelestinus", which itself is a variant of the Latin name "Caelestis", meaning "heavenly" or "of the sky". The root of the word comes from the Latin word "Caelum", which means "sky" or "heaven". Thus, "Celestine" essentially signifies something related to the heavens or celestial sphere.
