Mined from Minais Gerais, Brazil. A-grade black tourmaline ( schorl ) large 6cm-8cm size rough stone. Now only 6 metric tons left.  Samples can be obtained on amazon worldwide. 
JP => http://amzn.to/1H3WqxD
US=>http://amzn.to/1kYxTQn

Available in 20kg bags.  Limited amount left. 5 metric tons left.

Available in 20kg PE bags. Small samples can be obtained in Amazon worldwide. Just search on amazon for " Newstone  zeolite ". or google "amazon  newstone zeolite".

Zeolette kills Escherichia coli, Pseudomonas aeruginosa, O-157 and minimizes the risk of secondary infections.  A made in Japan product by Newstone.
*Newstone is a registered trademark.

US type 1: http://amzn.to/1Nz2jzP
US type 2: http://amzn.to/1RYpGqc
JP: http://amzn.to/1QGaHTs