Hyalite opal with Fluorite, Guanajuato, Mexico

Hyalite opal with fluorite inclusions, this material is very fluorescent.  Good luster and clarity opal with purple specks of fluorite. This material is also somewhat fluorescent in daylight, as shown in the last photo. 

Guanajuato, Mexico 

3.2x2.2x1.7cm approx