NEPTUNITE (VERY RARE)
NEPTUNITE (VERY RARE)
SPECIMEN NR #:707
Neptunite is a silicate mineral characterized by the formula KNa2Li(Fe2+, Mn2+)2Ti2Si8O24. It forms a series with mangan-neptunite as manganese content increases, while watatsumiite is a variant where vanadium substitutes titanium in the composition. First identified in 1893 from the Narssârssuk pegmatite in West Greenland, neptunite is also located in natrolite veins within glaucophane schist in San Benito County (ORIGIN OF THIS SPECIMEN), California, as well as in Mont Saint-Hilaire, Quebec, and the Kola Peninsula in Russia. The mineral derives its name from Neptune, the Roman god of the sea, due to its connection with aegirine, named after Àgir, the Scandinavian sea deity.
Specimen details
Specimen details
The numbers under "variant" are the measurements in mm and weight in grams. Where known, the origin of the specimen is mentioned. The number at the end, is the specimen number in our collection. Colours may vary, due to photography.
Care
Care
It's important to know that many minerals can be effectively cleaned with water. However, before using any cleaning methods, such as dissolvers or ultrasound, please take the time to research online. Improper use of these techniques could potentially harm your specimen.
Shipping
Shipping
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