The price is for a 1 inch Amethyst Quartz. 
The amethyst slab is a piece of a geode, and the image shows a pavement of amethyst crystals seen end-on. The amethyst image above is an edge view of the slab, showing the points of the amethyst crystals. Amethyst Druze Clusters are unequal-shaped components of the Amethyst crystals found inside geodes. 
 
Metaphysical Properties:
Divination
Spiritual Connections
Dream Work
Manifestation
Intuition
Calming
Spirit Contact
Strength
Success
Balance