Grossular Garnet from Sierra de Cruces, Coahuila, Mexico

Contributed by: Simone Conti
minID: L70-47Q
Date: Dec 2nd, 2024
Locality: Sierra de Cruces, Sierra Mojada Municipality, Coahuila, Mexico (See on Mindat)
Size: 2 x 2 x 2.5 cm
Weight: 14.4 g

Description:
Raspberry garnet var grossular, also called Rosolite. The main crystal is about 10mm in size. Nice orange/red fluorescence under longwave UV light, best under 405nm blue laser (but you need a filter to block the blue light).

Fluorescence under 405nm blue laser (with yellow filter).

Normal light.

Summary of luminescence responses:

Grossular (Mindat) (RRUFF)

• Fluorescence under 405nm blue laser: Orange