Calcite, AL Highway 75 road cut, Blount Co., AL
Contributed by: FMS Admin
Date: Mar 1st, 2026
Locality: Blount County, Alabama, USA (See on Mindat)
Size: 8 x 6 x 13 cm
Weight: 755 g
Description:
This is a roughly rectangular block of limestone with a calcite vein running diagonally through it, a pattern that I find especially appealing. The colors and color variations are typical of specimens from widely distributed locations around the state. Both LW and SW UV fluorescences are shown, along with a room-light photo.
Originally published by Bill Fowler on Nature’s Rainbows.
Summary of luminescence responses:
Calcite (Mindat) (RRUFF)
- Fluorescence under Longwave (365nm LED) UV light: White