These are beautiful tumbled pieces of Fluorite.
 
Their metaphysical correspondences:
 
Zodiac: Aquarius, Capricorn, Gemini, Pisces
Solar System: Mercury, Neptune
Element: Earth, Water
Energy: Yang
Chakras: Brow
Directions: North, South
Issues, Intentions, & Powers:  activate/awaken, emotional balance, beginnings, calm, goals, grief, grounding, healing (spiritual), life (vitality), self-work 
 
Please note that these are natural stone and therefore may have inclusions. Each piece is unique and may not reflect identically what is shown in the display photo.