The word "celadonite" is a mineral name pronounced as /ˌsɛləˈdoʊnaɪt/. Its spelling follows English phonetics, as it combines phonemes found in the English language. It is defined as a hydrous silicate mineral of the mica group, with a greenish-gray color. Celadonite was named after the cerulean glaze of ancient Chinese pottery, as it has a similar hue. The correct spelling of the word is important in scientific literature to avoid confusion and ensure accurate communication.
Celadonite is a mineral that belongs to the phyllosilicate group. It is primarily composed of hydrated iron magnesium aluminum silicate. The mineral typically forms in the monoclinic crystal system, although it can also occur in the triclinic or orthorhombic crystal system. It is classified as a mica due to its sheet-like structure and similar properties.
Celadonite is characterized by its green color, which ranges from pale green to dark green, often taking on shades of olive or celadon. This vibrant color is attributed to the presence of iron in its chemical composition. The mineral exhibits a nonmetallic luster and has a perfect basal cleavage, meaning it easily breaks into thin sheets.
Typically found in hydrothermal veins and altered volcanic rocks, celadonite is often associated with other minerals such as quartz, calcite, and pyrite. It is known for its relatively soft hardness, ranging between 2 and 3 on the Mohs scale. When exposed to light, celadonite exhibits a weak fluorescence, emitting a green glow.
Celadonite has been widely utilized for its aesthetic appeal and is commonly used in jewelry and ornamental carvings due to its attractive green color and smooth texture. Additionally, it is frequently used as a pigment in ceramics, particularly in the production of celadon pottery. Its unique physical and optical properties make celadonite a sought-after mineral for collectors, artists, and craftsmen alike.
The word "celadonite" has a relatively straightforward etymology. It comes from the name of the mineral, celadonite, which was first named and described by French mineralogist Alexis Damour in 1850. The name "celadonite" is derived from the French word "céladon", which means "a type of green", named after a character from Honore d'Urfe's 17th-century French pastoral romance, "L'Astree". Celadon is often depicted wearing green clothing and is associated with love and fidelity. Hence, the mineral celadonite, with its green color, was named after this character and word.