General comments/chat, page-2475

Apparently only three halloysite mines operate in the world: in NZ, in Colorado US and in Poland.
An interesting scientific paper about halloysite nanotubes application under this link: https://www.sigmaaldrich.com/technical-documents/articles/materials-science/nanomaterials/nanoclay-halloysite-nanotubes.html

"We foresee a great deal of fundamental research and many applications employing halloysite clay nanotubules. Research will include:

• Control of loading and release of macromolecules by making stoppers or narrowing the exits from the nanotubule lumen
• Development of the tubule nanoreactor concept by carrying out reactions at the openings of the halloysite nanotubules between loaded molecules and molecules in bulk solution

Possible applications of halloysite nanotubes include:

• Controlled release of anticorrosion agents
• Sustained release of herbicides, insecticides, fungicides and anti-microbials
• Sustained release of drugs, food additives, and fragrances
• Templating synthesis of rod-like nanoparticles
• Uses as catalytic supports and molecular sieves
• Specific ion adsorption
• Use as plastic fillers for strength reinforcement and scratch protection
• Use in advanced ceramic materials, especially biocompatible implants."