Sourced from deposits in southern India, these oval Black Tourmaline pebbles, Grade A, were selected for their beautiful finish. Used in lithotherapy for grounding and harmonizing the 1st chakra, and in geobiology for space protection. - Pebble – Polished natural stone - Grade A - Length: 4cm to 5.4cm - Width: 6cm to 7.5cm - Thickness: 1.6cm to 2.3cm - Stones sold individually