HILLEBRANDITE Meaning and
Definition
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Hillebrandite is a mineral that belongs to the calcite group and is classified as a sulfate mineral. It is a rare mineral which occurs in specific geologic environments.
Chemically, hillebrandite is known as a hydrated calcium sulfate, with the chemical formula Ca2(SO4)(OH)2·3H2O. The mineral typically forms as colorless or white prismatic crystals, which may be transparent or translucent. It has a vitreous or pearly luster and is characterized by its perfect cleavage and brittle nature. It has a Mohs hardness of around 2, making it relatively soft.
Hillebrandite is commonly found associated with volcanic deposits, particularly those that have undergone hydrothermal alteration. It often occurs in contact metamorphic environments, where it may be found as a secondary mineral resulting from the interaction of calcium-rich solutions with other minerals. The mineral may also form as an efflorescence or crust on walls and surfaces of caves or mine tunnels.
The name hillebrandite is derived from the American mineralogist, Frederick Augustus Genth, who named it in honor of his friend, Julius Philip Hillebrand, a renowned chemist and geologist.
Due to its rarity and lack of widespread distribution, hillebrandite does not have any significant industrial uses. However, it is highly valued among mineral collectors and enthusiasts for its aesthetic appeal and unique crystal habits.
Etymology of HILLEBRANDITE
The word "hillebrandite" is derived from the name of a prominent American chemist, Friedrich August Rudolf Hillebrand (1853-1925). Hillebrand was known for his contributions to the field of analytical chemistry and mineralogy. The mineral hillebrandite was named in his honor to acknowledge his significant contributions to the understanding of minerals and his dedication to the field of chemistry.
