ALUMINOCELADONITE Meaning and
Definition
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Aluminoceladonite is a mineral belonging to the group of phyllosilicates, a class of minerals characterized by their sheet-like structure composed of silicon-oxygen tetrahedra. It is known for its greenish-blue color, which gives it a unique appearance.
Specifically, aluminoceladonite is a member of the celadonite subgroup within the larger mica group of minerals. It is rich in aluminum, which is substituted for some of the iron in its chemical composition. The general formula for aluminoceladonite can be represented as (K, Na)(Fe2+, Al, Mg)4[(Si, Al)4(O, OH)10]·nH2O, indicating the presence of potassium, sodium, iron, aluminum, and magnesium ions in its structure.
Aluminoceladonite typically forms in clay-rich environments with low-grade metamorphism or hydrothermal alteration of volcanic rocks. Its greenish-blue color is due to the presence of iron(II) ions and other impurities. Its visible cleavage and flaky habit make it easy to distinguish from other minerals.
In addition to its aesthetic appeal, aluminoceladonite may also exhibit a pearly luster, making it sought after by collectors of minerals and gemstones. However, due to its relatively common occurrence and lack of valuable properties, it does not hold significant economic importance. Its main significance lies in its role as a mineral specimen for study and identification.
Etymology of ALUMINOCELADONITE
The word "aluminoceladonite" is derived from the combination of two terms - "alumino" and "celadonite".
The prefix "alumino-" indicates the presence of aluminum in the compound. It is derived from "alumina", which is the oxide form of aluminum. This prefix signifies that aluminum is a key component in the composition of the mineral.
"Celadonite" is the name of a mineral that belongs to the mica group. It is a green-colored mineral characterized by its micaceous structure and usually forms aggregates or small plates. The name "celadonite" derives from the French word "celadon", which refers to a greenish-gray color.
When these two terms are combined to form "aluminoceladonite", it indicates a variety or type of celadonite that contains aluminum in its composition.
