Apatite Crystal from Mt St Hilaire, Canada - Red fluorescence under Longwave, Unusual.
Contributed by: Axel Emmermann
minID:
Date: Dec 17th, 2024
Locality: Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada (See on Mindat)
Size: 0 x 0 x 0 x
Weight: 0
Description:
Here\'s pretty specimen - a small apatite crystal of about 2 mm across, on a matrix of albite. Came from Mount Saint Hilaire.
The apatite shows different responses to different UV-bands but the feldspar only fluoresces dim red under SW.
Summary of luminescence responses:
Fluorapatite
- Fluorescence under Longwave (365nm LED) UV light: Red
- Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Yellow
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Yellow