Tags: Chemical Substance, Mineral.

Neptunite is a silicate mineral with the formula KNa2Li(Fe2+ Mn2+)2Ti2Si8O24. With increasing manganese it forms a series with mangan-neptunite. Watatsumiite is the variety with vanadium replacing the titanium in the formula.It was first described in 1893 for an occurrence in the Narssârssuk pegmatite of West Greenland. It is also found within natrolite veins in glaucophane schist within serpentinite in San Benito County California USA.

Neptunite_(USA).jpg

Loading...

This page contains content from the copyrighted Wikipedia article "Neptunite"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.