This Specimen has been sold.
3.6" Polished, Fluorescent Tinguaite Slab - Khibiny Massif, Russia
This is a 3.6" wide slab of tinguaite that was collected from the Khibiny Mountains of Murmansk Oblast, Russia. This slab features pockets of vibrant orange fluorescence when placed under shortwave UV light. Hackmanite, a variety of sodalite is likely to be the cause for this extraordinary fluorescence. The slab has been polished to a glossy finish on one side and is accompanied by an acrylic display stand.
Tinguaite is a fine-grained variety of the igneous rock phonolite. It is comprised of a variety of minerals including nepheline, alkali feldspar, aegirine, and in some cases biotite. These mineral aggregations can often give it a felt-like appearance and a brown, black, and green coloration. Some notable sites where tinguaite occurs are the United States (Montana), Brazil (Rio De Janeiro), Russia (Murmansk Oblast), and Norway (Hedrum).
SPECIES
Phonolite (Tinguaite) & Sodalite var. Hackmanite
LOCATION
Khibiny Massif, Murmansk Oblast, Russia
SIZE
3.6 x 2.05", .1" thick
CATEGORY
ITEM
#208471