Mineral Specimen #5226 Vishnevite, Borolanite
Allt a'Mhuillin, Loch Borrolan, Assynt, North West Highlands, Scotland
8.6 x 4.5 x 4.4 cm
Ex. Carniege Museum, White Colleition, Ex. Cureton Minerals
Massive light blue Vishnevite in a Borolanite matrix. Borolanite is a name locally used (and named for the locale) for a variety of coarse grained nepheline syenite composed of alkali feldspar,Nepheline and/or its alteration products, Melanite and Biotite.
Flaws: Essentially massive material.
This mineral is also found in the following galleries: Minerals From Europe | Tectosilicates | Rare Minerals | Minerals Priced Between 25 and 49 Dollars