Maxim L.D.,Everest Consulting Associ. |
Niebo R.,Everest Consulting Associ. |
Utell M.J.,University of Rochester |
McConnell E.E.,ToxPath Inc. |
And 2 more authors.
Inhalation Toxicology | Year: 2014
This review updates earlier work addressing the epidemiology and toxicity of wollastonite. Earlier chronic animal bioassay and human mortality data were inadequate (IARC term) or negative and no new studies of these types have been published. Wollastonite has been determined to have low biopersistence in both in vivo and in vitro studies, which probably accounts for its relative lack of toxicity. Earlier morbidity studies of mining/mineral processing facilities in Finland and New York State indicated that exposure to wollastonite might result in pleural plaques (Finland) or decrements in certain measures of lung function (New York). More recent analysis of data from an ongoing health surveillance program at one facility (New York) indicates that there are no pleural plaques or interstitial lung disease or decrements in lung function among never smokers or former smokers occupationally exposed to wollastonite. This result probably reflects continued reduction in exposures as part of an ongoing product stewardship program at this facility and suggests that wollastonite has relatively low toxicity as currently managed. © 2014 Informa Healthcare USA, Inc. All rights reserved.
Glover A.S.,Active Minerals International LLC |
Rogers W.Z.,NYCO Minerals Inc. |
Barton J.E.,105 W. Copeland Circle
Elements | Year: 2012
Granitic pegmatites are mined for feldspar, quartz, mica, lithium aluminosilicate minerals, and kaolin. These industrial minerals have a myriad of uses, some as mundane as glasses, porcelains, and bulk fi llers, and others that are critical to the most advanced electronic devices. The chemical fractionation that produces pegmatites refi nes these industrial minerals to a purity that is not achieved in other geologic environments. The high chemical purity of their constituents and the fact that they contain nearly 100% of minable rock make large granitic pegmatites some of the most valuable sources of industrial minerals.
NYCO Minerals Inc. | Date: 2010-08-17
Processed minerals and mineral products, namely, wollastonite and surface modified wollastonite for use as an additive or filler in plastics, elastomers, adhesives and sealants.
NYCO Minerals Inc | Date: 2013-08-28
NYCO Minerals Inc. | Date: 2014-07-03
Chemically-modified blends of wollastonite and synthetic fibers.