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SC442 - Magnesite, Chalcedony

Locality: Lower Burro Creek Wilderness Area, Mohave County, Arizona, USA (MINDAT)
Size: 14 x 9 x 5 cm - Large cabinet (10-15 cm)
Weight:
minID: XL7-DY6

Magnesite with veins of chalcedony. Under shortwave UV light the magnesite fluoresces white, while the chalcedony fluoresces green. The magnesite fluoresces white under longwave UV light too. The locality for this material is generally indicated as “near Bagdad, AZ” or “Burro Creek, AZ”.

Photo in normal light.
Left: Fluorescence under 254nm UVC (shortwave) Hg light. Right: normal light.
Left: Fluorescence under 365nm UVA (longwave) LED. Right: normal light.
Last update: 24 May 2022