This piece of Black Kyanite weighs 81 grams. For size reference it is placed on top of a standard drink coaster (3.6in or 9.2cm in diameter) and next to a clothespin.
 
When buying from this category, "Only One Available", please make sure you can take care of  your invoice within 24 hours of receiving it, otherwise the invoice will be canceled to make the stone available to other interested customers.
 
Excerpts from Book 3 (CREATION: ITS HISTORY, EXPLOSIVE EVOLUTION, AND ET ARRIVALS ON EARTH. Available on Amazon):
Kyanite – Helps separate unwanted frequencies within you and set them aside for a slow removal. Tourmaline and Amazonite work well with it.
All the Kyanite varieties help disolve or partially disassemble problematic frequencies and slowly remove them.