This a cluster of multiple clear points.
 
One of clear quartz's benefits is enhancing mental clarity. It can help with emotional stability, and it's popular in meditation and restorative work. It's also often used for manifestation and can help create more focus and clarity around a desire. It is a protective stone and can be used to amplify psychic abilities.
 
It is also an amplifier, which boosts properties of crystals next to it.