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åkermanite

Definition of the noun åkermanite

What does åkermanite mean as a name of something?

noun

  1. [mineral] A melilite mineral of the sorosilicate group, containing calcium, magnesium, silicon, and oxygen and having the chemical formula Ca2Mg[Si2O7].

Explanation

åkermanite a.k.a. Åkermanite is a melilite mineral of the sorosilicate group, containing calcium, magnesium, silicon, and oxygen. It is a product of contact metamorphism of siliceous limestones and dolostones, and rocks of sanidinite facies. Sanidinite facies represent the highest conditions of temperature of contact metamorphism and are characterized by the absence of hydrous minerals. It has a density of 2.944 g/cm³. Åkermanite ranks a 5 or 6 on the Mohs scale of mineral hardness, and can be found grey, green, brown, or colorless. It has a white streak and a vitreous or resinous luster. It has a tetragonal crystal system and a good, or distinct, cleavage. It is the end member in a solid solution series beginning with gehlenite.

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