This is an exceptionally lovely piece of rhodochrosite.  approximately 1.25 inch by 1 inch by 0.5 inch. 24 grams.
 
RHODOCHROSITE is a precious ally for self-love, compassion, forgiveness, and
emotional healing. Utilize its frequency when recovering, reliving and releasing memories of emotional wounding. This stone inspires joy, grace and appreciation for the beauty of natural world.