Sizes and colors vary due to natural nature 

A crystalline quartz ranging colour from a pale lilac colour to a deep reddish purple.

Amethyst is said to be a very powerful crystal that can guard you from psychic attacks, restoring calmness and peace. It is also written that Amethyst is a powerful healing and cleansing crystal that may enhance spiritual awareness.

A pendulum is a tool we use to connect to our higher self, by asking it questions we can use it to guide us.