(1696) many particles on the glass neck , which particles I took to be Antimony .If we now see the large amount of sulphur with which the Mineral is covered , we need not wonder that in the said mines not only is a foul smell noticed , but also many People working in the mines fall ill owing to those sulphur fumes and even die .What appeared to me to be beyond expectation was that so much sulphur was produced , according to the size of the rock or Mineral , and this over and above many other part and out of so hard a rock , with which one can cut in glass .