Size: 4. cm (approx)
Weight: 20 g (approx.)
Chakra: 7th (Skull)
Chemical Properties: Borosilicate calcium, Ca B2 (SiO4) 2
RARE and beautiful stone, bright, sweet, heavenly ... aligns all chakras.
Boron is an element that physics is a real "shield" against radiation: "He also plays as a shield against radiation and neutron detectors"
see here:
http://fr.wikipedia.org/wiki/Bore
Very good stone 7th chakra (energy skull field, cosmic energy, spirituality, clairvoyance, intuition).
This stone is very high frequency in dowsing, measured UB 15,000 (higher than quartz).
