Fluorite octahedrons large size 
Approximately 35g
Approximately 4cm 
Each octahedron will be intuitively chosen for you. 
Composition: Forms through hydrothermal and sedimentary processes. Forms in a variety of shapes such as cubes and octahedron. Used in many industrial processes.
Metaphysical properties: Referred to as the 'study stone' because of it ability to help focus and clarify thoughts. Deeply healing for the physical body making it perfect for arthiritic and myalgia conditions. Associated with the third eye chakra.