Norvein

Norvein is a fictional silicate mineral described for illustrative purposes. It occurs in hydrothermal vein deposits within greenschist to amphibolite facies metamorphic rocks. The ideal simplified formula is NvSi2O7(OH)2, with iron and magnesium as common impurities. Norvein crystals are typically pale blue to teal, transparent to translucent, and have a vitreous luster. Hardness on the Mohs scale is estimated at 6.5 to 7, and the measured specific gravity is about 3.2 to 3.4. The mineral forms prismatic crystals and fibrous to granular aggregates.

Norvein forms from silica-rich fluids during late-stage hydrothermal activity that interacts with metamorphic host rocks. It is commonly associated with quartz, chlorite, calcite, and minor sulfide minerals.

Etymology and history: The name Norvein is derived from Norvein Ridge, a fictional locality, combined with vein to indicate its vein-filling habit. It was first described in fictional mineral literature in the late 20th century for demonstrative purposes.

Uses: In the fictional context, Norvein is valued by collectors for its color and crystal habit and is studied as an example of hydrothermal mineralization. It has no known industrial ore value.

See also: Mineral, Silicate mineral, List of minerals.

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