ISBN: 1130824365

[EAN: 9781130824360], Neubuch, RICHARD BECK,HISTORY, This item is printed on demand. Paperback. This historic book may have numerous typos and missing text. Purchasers can download a free… More...

[EAN: 9781130824360], Neubuch, RICHARD BECK,HISTORY, This item is printed on demand. Paperback. This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 Excerpt: . . . iiierkwiirdiger Gangverhaltnisse aus dem sucks. Erzgebirge, Leipzig, 1836, p. 27. 1. Massive Filling. A massive filling is especially common in simple veins, and the gangue and ore minerals usually show a compact massive development. Many gold quartz veins are of this type, the vein consisting of a uniform and compact mass of quartz containing disseminated grains of gold-bearing pyrite and particles of free gold (disseminated vein structure). Many pyriteblende-lead veins show this structure, an older fissure being filled with com Fig. 128. --View of the Rudolf Stehende (pyritous lead ore formation) with dominant massive structure. (From nature. ) gr, decomposed gray gneiss; q, quartz; b, argentiferous galena; s, pyrite. pact ore. Fig. 128 represents the Rudolf Stehende on the Himmelsfahrt mine near Freiberg, in which the vein is mainly compact galena. Examples of a purely massive structure are seen in the small lodes of compact bornite ore encased in gneiss at Hvidesoe (Hvideseid), Norway. 2. Banded or Crusted Filling. This filling in which the different constituents are arranged in more or less sharply defined layers or crusts is a common feature of veins. It is wholly unlike the structure prevailing in mineralized igneous dikes, and is readily distinguished from the stratified structure of sedimentary deposits. When the crusts are very thin they commonly occur in great number, as. for example, in many of the lead-barite veins in the Erzgebirge. A typical example is shown in Fig. 129 representing a specimen from the Friedrich vein of Memmendorf in the Erzgebirge. The delicate crusts consist respectively of dense barite, fluorspar, zinc-blende and galena. When the minerals forming a crust are crystalline and the crystals are elongated and arranged at. . . This item ships from La Vergne,TN.<

2012, ISBN: 1130824365

[EAN: 9781130824360], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****. This historic book may have numerous typos and missing text. Purchasers … More...

[EAN: 9781130824360], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****. This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 Excerpt: .iiierkwiirdiger Gangverhaltnisse aus dem sucks. Erzgebirge, Leipzig, 1836, p. 27. 1. Massive Filling. A massive filling is especially common in simple veins, and the gangue and ore minerals usually show a compact massive development. Many gold quartz veins are of this type, the vein consisting of a uniform and compact mass of quartz containing disseminated grains of gold-bearing pyrite and particles of free gold (disseminated vein structure). Many pyriteblende-lead veins show this structure, an older fissure being filled with com Fig. 128.--View of the Rudolf Stehende (pyritous lead ore formation) with dominant massive structure. (From nature.) gr, decomposed gray gneiss; q, quartz; b, argentiferous galena; s, pyrite. pact ore. Fig. 128 represents the Rudolf Stehende on the Himmelsfahrt mine near Freiberg, in which the vein is mainly compact galena. Examples of a purely massive structure are seen in the small lodes of compact bornite ore encased in gneiss at Hvidesoe (Hvideseid), Norway. 2. Banded or Crusted Filling. This filling in which the different constituents are arranged in more or less sharply defined layers or crusts is a common feature of veins. It is wholly unlike the structure prevailing in mineralized igneous dikes, and is readily distinguished from the stratified structure of sedimentary deposits. When the crusts are very thin they commonly occur in great number, as. for example, in many of the lead-barite veins in the Erzgebirge. A typical example is shown in Fig. 129 representing a specimen from the Friedrich vein of Memmendorf in the Erzgebirge. The delicate crusts consist respectively of dense barite, fluorspar, zinc-blende and galena. When the minerals forming a crust are crystalline and the crystals are elongated and arranged at.<

2012, ISBN: 1130824365

[EAN: 9781130824360], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****.This historic book may have numerous typos and missing text. Purchasers c… More...

[EAN: 9781130824360], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****.This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 Excerpt: .iiierkwiirdiger Gangverhaltnisse aus dem sucks. Erzgebirge, Leipzig, 1836, p. 27. 1. Massive Filling. A massive filling is especially common in simple veins, and the gangue and ore minerals usually show a compact massive development. Many gold quartz veins are of this type, the vein consisting of a uniform and compact mass of quartz containing disseminated grains of gold-bearing pyrite and particles of free gold (disseminated vein structure). Many pyriteblende-lead veins show this structure, an older fissure being filled with com Fig. 128.--View of the Rudolf Stehende (pyritous lead ore formation) with dominant massive structure. (From nature.) gr, decomposed gray gneiss; q, quartz; b, argentiferous galena; s, pyrite. pact ore. Fig. 128 represents the Rudolf Stehende on the Himmelsfahrt mine near Freiberg, in which the vein is mainly compact galena. Examples of a purely massive structure are seen in the small lodes of compact bornite ore encased in gneiss at Hvidesoe (Hvideseid), Norway. 2. Banded or Crusted Filling. This filling in which the different constituents are arranged in more or less sharply defined layers or crusts is a common feature of veins. It is wholly unlike the structure prevailing in mineralized igneous dikes, and is readily distinguished from the stratified structure of sedimentary deposits. When the crusts are very thin they commonly occur in great number, as. for example, in many of the lead-barite veins in the Erzgebirge. A typical example is shown in Fig. 129 representing a specimen from the Friedrich vein of Memmendorf in the Erzgebirge. The delicate crusts consist respectively of dense barite, fluorspar, zinc-blende and galena. When the minerals forming a crust are crystalline and the crystals are elongated and arranged at.<