Quartz Crystals on Calcite - San Antonio Mine, Chihuahua, Mexico
Small delicate crystals of bright green fluorescing quartz are peppered around a matrix of calcite on this striking specimen.
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"Fantasy Rock" Tugtupite, Sodalite, Chkalovite, Analcime - Greenland
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SKU: MSG1461
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A large fantasy rock with nice, deep tenebrescence on one side.
The main minerals on this large specimen are tugtupite (cherry red SW), along with chkalovite (the rarer pearly white variety – a classic example of how tugtupite replaces chkalovite), blue analcime, orange sodalite and black arfvedsonite throughout the matrix. On one side, green chkalovite displays as a coating on the sodalite. Under LW both the tugtupite fluoresces a bright orange (more salmon for the tugtupite). The delicate veining on this material clearly illustrates tugtupite replacing chkalovite and offers up fascinating patterns.
Very unique material.
The nickname “Fantasy Rock” encompasses a group of rocks found on the Taseq Slope in the Ilimaussaq Complex, Greenland and only in this one locality within the complex. A typical Fantasy Rock usually consists of four basic minerals: tugtupite, sodalite, chkalovite, analcime, and they are always the most color-rich pieces from this exotic, remote locale.
"Red" Sodalite (Hackmanite) - Deeply Tenebrescent Greenland Mineral
Red sodalite is named for the color it takes on when exposed to sunlight; it is nicely tenebrescent under longwave UV. Under shortwave UV the color deepens, in seconds, to almost black in some areas.
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A Short Study on Rare Occurrences of Apatite from the Ilimaussaq Complex, Greenland
Rarest of the rare from Greenland - apatite has only been observed in a handful of pieces over the decade+ we have been exploring Greenland. Blue apatite crystals fluorescing under UV.
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