Xinhai provides mineral processing technology, equipment manufacture and one-stop service for mineral processing plant. Xinhai equipment mainly include: grinding, flotation, thickener, and so on.
Ball mill: a short tube mill (see below) of relatively large diameter, in which grind ing is done with steel balls instead industry of New England. Bootlegging: mining, especially of anthracite, without the consent of the owner of the mineral rights. Borates: see Boron minerals. Borax or Sodium .. Opal: a hydrous form of silica.
You will want to spend time on these materials; breaking down clods and raking through the fines for opal that was missed. Opals found in the more recent tailings should be considered wet opals, and treated accordingly. These opals should be kept in water, cleaned and displayed as wet specimens. Digging in the older
Huge opal glossary with important terms used in the mining and opal industry.