MINING – Pharma major knew for decades that cancer-causing asbestos lurked in its talc Baby Powder
(Reuters) 12.14.2018 – Shares of Johnson & Johnson (JNJ.N) fell 10 percent on Friday and were on track to post their biggest percentage drop in more than 16 years, after Reuters reported that the pharma major knew for decades that cancer-causing asbestos lurked in its Baby Powder. Share More: https://www.reuters.com/article/us-johnson-johnson-cancer-stock-idUSKBN1OD1ZK?utm
Ludlow, VT: Imerys Talc America mines operates in the Vermont Green Mountains. According to Imery, Talc is a hydrated magnesium silicate. There are many types of talc and each ore body has its own features, its own geology, formed many millions of years ago. As a natural ore, talc is always found in combination with at least one other mineral. The most common of these is chlorite, a chemically and structurally similar ore. Other associated minerals often found with talc include dolomite and magnesite.
Talc deposits result from the transformation of existing rocks under the effect of hydrothermal fluids carrying one or several of the components needed to form the mineral. Tectonics play a major role in the genesis of a talc deposit as they enable hydrothermal fluids to penetrate the rock, creating a micro-permeability that facilitates reactions in the mass. The size and shape of a talc deposit depends upon the intensity of this hydrothermal activity which corresponds to the climate of a low temperature metamorphism.
Talc Physical properties:
- Softest mineral on earth (1 on Mohs’ scale)
- Platy, lamellar
- Oleophilic (natural affinity with oils)
- Relatively inert
- Properties vary from one deposit to another depending on associated minerals