Collection grade fluorescent Sphalerite (pink-red and blue in long wave, orange in short wave) in Microcline Feldspar (no UV reaction) matrix mineral specimen (0.28kg).
Sphalerite is both fluorescent in the long wave and short wave in two different colours. Blue long wave fluorescence and pink-red long wave fluorescence correspond to two different activators in Sphalerite.
Also Sphalerite shows noticeable phosphorescent afterglow (3-5 seconds) after illumination with the long wave UV light. See video for more details.
Country of origin: United States, New Jersey, Sussex County, Franklin mine.
All stock is located in Australia.
Combined shipping is available for more than one item.