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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Hyalite Opal - South Africa
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SKU: MSW1541
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This bright green opal specimen consists of transparent, bubbly hyalite opal covering a matrix. The hyalite opal shows a bright green fluorescent response under both shortwave and longwave UV.
Trace amounts of uranyl are the reason for this bright green glow.
This specimen also displays "daylight fluorescence". Under indirect sunlight with the best results on a cloudy day, you’ll see a green fluorescence without the use of any UV lights (excluding the UV light from the sun).
"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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