You are looking at a Mookaite Jasper skull. The skull is 4.5 inches long, from front to back.

Mookaite Jasper is an Australian jasper containing shades of pink, red and yellow. It is a nurturing stone that supports and sustains during times of stress bringing peace and a feeling of wholeness. Mookaite Jasper encourages versatility and helps you to accept change. It helps you to discover all possibilities in a situation and to choose the right one. Mookaite also grounds and stabilizes the whole body and provides a protective energy that helps to block unwanted outside influences.