Glauberite is a monoclinic sodium calcium sulfate mineral with the formula Na 2 Ca(S O 4) 2. It was first described in 1808 for material from the El Castellar Mine, Villarrubia de Santiago, Toledo, Castile-La Mancha, Spain. It was named for the extracted Glauber's salts after the German alchemist Johann Rudolf Glauber (1604–1668).
Glauberite mineral data, information about Glauberite, its properties and worldwide locations. SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser! Log In Register.
Glauberite definition is - a light-colored brittle sodium calcium sulfate Na2Ca(SO4)2 having a vitreous luster and saline taste.
Many Glauberite specimens in collections are not truly Glauberite, but rather other minerals that formed a pseudomorph or epimorph over the Glauberite. Glauberite itself is in fact a rare and unstable mineral, but its remnants and castings are much more prevalent. This is evident by an abundance of empty casts and pseudomorphs found in localities where little or no Glauberite was ever found.
Glauberite definition, a mineral, sodium calcium sulfate, Na2Ca(SO4)2, often found as a deposit on the beds of salt lakes. See more.
Glauberite in its original state has not been found at the Fan-wood quarry. The Fanwood quarry: Somerset County New Jersey The Group has completed the acquisition of a subsidiary, during the year, which is the beneficiary of a glauberite mine located in Guangxi, the PRC.
Glauberite also becomes cast by several minerals. It is soluble in water and probably this is the reason for this tendency. After glauberite forms other minerals grow on top of the crystals. Later, the glauberite dissolves away, leaving a cast of itself as the only evidence of its past presence.
Glauberite itself is mostly colorless to cream to gray in color, rather soft at 2.5 on the Moh’s Scale, and has a white streak. Glauberite is impressive due to the unmistakable, large, well-formed, tabular- to wedge-shaped crystals that define the mineral. This characteristic shape seems enough to distinguish the mineral from others.
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