One of the best ways to pick a crystal is by sight and using your intuition. But if you are looking for a specific helper for support with intuition, peace, EMF protection, etc then you can find what you are looking for here!
Russian Shungite Pendant by liam.smom 
Sodalite Pendant by saracmares 
Amethyst Bracelet by Becky F. 
Clear Quartz Teardrop Pendant $12.00
Hematite Tumbled Polished Stone $3.00
Citrine Rough Stone $2.00
7 Chakras Bracelet $22.00
Rose Quartz Tumbled Stone $2.00 – $3.00