Zeolite Powder， 1 Pound， ULTRA FINE less-than 20 µm， Clinoptilolite: 90-92%， activated， Natural Mineral Dust.</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>100% natural volcanic mineral from Norway. 1 Pound (454g)Clinoptilolite: 90-92%， activated.</li><li>Ultrafine: <20 µm! By powdering the Zeolite we increase it’s surface area thereby increasing it's effectiveness. Micronized with ceramic balls， so no metal included!</li><li>Recommended: use wooden or ceramic spoon.</li><li>Zeolites have a number of industrial， agricultural， and medical uses.</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41NVkDRKiKL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/4181Rv7mwaL.jpg' noproxy></br>