Information about Nepheline

Nepheline is a common feldspathoid mineral that typically forms in massive, granular aggregates or as prismatic crystals in igneous rocks. It is usually white, gray, or colorless but can also appear in shades of yellow, green, or brown due to impurities.

Uses and History

Nepheline has industrial significance as a source of aluminum and alkalis, particularly in regions where bauxite is rare.

Nepheline was first described in 1801 by René Just Haüy, a prominent French mineralogist. The name is derived from the Greek word “nephele,” meaning “cloud,” referencing the cloudy appearance of the mineral when immersed in acid.

Mineralogy

Hazards and Warnings

Mineral collectors should wash their hands after handling specimens, to avoid any exposure to potential toxins.

Almost all rocks, minerals (and, frankly, almost all other substances on earth) can produce toxic dust when cutting, which can cause serious respiratory conditions including silicosis.

When cutting or polishing rocks, minerals, shells, etc, all work should be done wet to minimise the dust, and a suitable respirator or extraction system should be used.

Translations

Further Reading / External Links

• https://en.wikipedia.org/wiki/Nepheline
• https://www.mindat.org/min-2880.html
• https://www.alexstrekeisen.it/english/vulc/nepheline.php
• http://webmineral.com/data/Nepheline.shtml