. Report of the Commission Appointed to Investigate the Zinc Resources of British Columbia and the Conditions Affecting their Exploitation. Illustration of Crustification and the Order of Mineral Depositionin the Highlander Vein. (P) Porphyry fragment cubical in shape, covered with a film of siderite ; next an enve-lope of zinc blende %. inch in thickness surrounds the cube like piece of porphyry, followingwhich is a coating of siderite % inch thick, and which is in turn surrounded by a thin filmof zinc blende forming the outer layer, coincident with the fragment above I oo > 11 *a tj
. Report of the Commission Appointed to Investigate the Zinc Resources of British Columbia and the Conditions Affecting their Exploitation. Illustration of Crustification and the Order of Mineral Depositionin the Highlander Vein. (P) Porphyry fragment cubical in shape, covered with a film of siderite ; next an enve-lope of zinc blende %. inch in thickness surrounds the cube like piece of porphyry, followingwhich is a coating of siderite % inch thick, and which is in turn surrounded by a thin filmof zinc blende forming the outer layer, coincident with the fragment above I oo > 11 *a tj I h J 8 <^y LU <
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Keywords: ., bookcentury1900, bookdecade1900, bookidreportofcom0, bookyear1906
