Unexpected luck on the eighth

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Unexpected luck on the eighth
General information about the mine
Mining technology Ridge construction, ridge construction, bench construction
Rare minerals Proustite , pyrite , chalcopyrite , arsenopyrite
Information about the mining company
Operating company Communbergbau, Gustav Linnartz and Erben
Start of operation 1713
End of operation 1936
Funded raw materials
Degradation of Silver, lead
Silver, lead

Camp name

Greatest depth 136 m
Geographical location
Coordinates 50 ° 30 '47.5 "  N , 12 ° 44' 43.8"  E Coordinates: 50 ° 30 '47.5 "  N , 12 ° 44' 43.8"  E
Unexpected luck at the eighth (Saxony)
Unexpected luck on the eighth
Unexpected luck on the eighth
Location Halsbachtal
local community Breitenbrunn / Erzgeb.
District ( NUTS3 ) Erzgebirgskreis
country Free State of Saxony
Country Germany

Location of the pits on the eighth

Unexpected luck at the eighth was an important treasure trove in the Schwarzenberg mining district in the Saxon Ore Mountains . The associated hat or colliery house is a listed building and belongs to the Antonsthal district of the municipality of Breitenbrunn / Erzgeb. in the Erzgebirgskreis .

Geographical location

Fundgrube, Stolln and Huthaus are located in the upper Halsbachtal on the road from Antonsthal to Jägerhaus . The name "on the eighth" goes back to the Achtnergebirge (also Black Eagle Mountains), a ridge that stretches from Hinterhenneberg to Antonsthal.

geology

The deposit is a skarn horizon with strike 345 ° -360 ° and dip 45 ° -55 ° to the west. The horizon stretches from the Segen Gottes Fundgrube in the south to the St. Wolfgang Stolln in the north over a length of approx. 3.2 kilometers. The surrounding rock belongs to Cambrian rocks of the Jáchymov group; in the footwall powerful represented by 100 meters muscovite -Two mica of Grießbach formation and in the hanging wall of the 125 meter thick width Brunn formation . The skarn horizon is tied to the boundary of the Beitenbrunn-Grießbach formation. In this pyroxene skarn with parts of actinolite and garnet several ore deposits are switched on.

The mineralization is mainly bound to the penetrating deaf veins of the quartz-sulphide series and consists of galena , sphalerite , chalcopyrite, arsenopyrite and pyrite. The width of the mineralization can be up to 24 meters.

In the lying area there is a 1.5–6 meter thick, little mineralized limestone dolomite deposit . The mineralization is tied to penetrating veins. The ore guide consists of galena, pyrite, sphalerite and magnetite . The best ore duct with a thickness of 0.6 meters was in the area of ​​the silver chamber treasure trove . She was on a 135 ° -156 ° trending and 60 ° SW incident surfaces bound transition.

history

Formerly stamped works by Unverhofft Glück on the Eighth, today the "Silver Wash" museum

The unexpected luck treasure trove was located just below today's S 274 in the area of ​​the Dreitanner Weg. It was first mentioned in 1687. She built the morning corridor with the skarn camp on the cross of hope . The silver-bearing galena and other ores found here were initially processed in a stamping mill not far from the Weißer-Adler mine . 1790 it came to Freifahrung the pit.

Operation until 1867

After a reduction in the number of crews and the removal of the outdoor kuxe , the operation was continued under the shift supervisor Christian Gottlob Schubert. Schubert applied for an advance to build a piece of art and a double stamping mill. After a general inspection by the mountain commissioner Carl Wilhelm von Oppel , the application was rejected because of Schubert's lack of expertise. In 1798 the union with the Five Brothers Fundgrube on the Brettberg took place under the name Unverhofft Glück including the Fünf Brüder Fundgrube an der Achte . The aim was to dig deeper into the deposit with the Jung-Adler adit . Due to the carelessness of the shift supervisor, a lot of kuxe fell outside. As a result, several pits were abandoned. Including Peter and Paul Stolln , Five Stolln Brothers and Fundgrube and Himmelfahrt Fundgrube . In 1824 there was a consolidation with the knight St. Georg Stolln to the Unexpected Glück Fundgrube together with the knight Georg Stolln an der Echte . In the course of planning a hut in the Schwarzwassertal , the Freiberg Oberbergamt considered the mine to be the most promising for the ore purchasing establishment and therefore received an advance from the silver mining fund.

In 1827 the construction of a processing started. The original location directly at the Stollnmundloch was given up in favor of a location on the Schwarzwasser next to the planned royal Antonshütte . The costs of 4548 thalers , 13 groschen and 1 pfennig were advanced from the general smelter administration treasury. The preparation comprised a wet pounding wash with 12 wet and 3 dry pounding stamps as well as 3 shock cookers. The system was driven by a water wheel with a diameter of 5.70 meters. The present-day Silver Wash Museum emerged from this preparation . The so-called Pochwerksweg from the pit down into the valley, the predecessor of today's country road, was laid out at the end of 1827 to transport ore. On October 1st, 1828, the processing was put into operation in the presence of Chief Miner Sigismund August Wolfgang Freiherr von Herder . On December 1, 1828, the first delivery of 87.25 quintals (4481 kg) of ore with a content of 21  Mark 10  Lot (5 kg) of silver to the smelter.

On July 5, 1829, Prince Friedrich August visited the washing of the pit together with the Privy Councilor Johannes von Minckwitz and Colonel von Cerrini .

On July 21, 1830 there was a serious accident in the mine. 5 miners drove in too early after the fire started and were passed out by the gases. However, they could be rescued by a rescue team.

In 1831, the ores from the mine were sampled in the Antonshütte. The sample contained 20.1% galena, 18% sphalerite, 14% pyrite, 6.1% hematite, 3.8% manganese dioxide and 0.055% silver.

On December 6, 1834, the ordinance on support for local mining that had been in force until then was reorganized. In this way, only the most promising pits should be subsidized in each area. It was therefore decided to use the funds previously built up at the Weisser Hirsch treasure trove to drive the Jung-Adler Stollnort . So far, the mine had received advances of 9,645 thalers between 1827 and 1834. These had to be repaid in the amount of 1 thaler per silver mark delivered.

In 1836 the Jung-Adler Stolln reached a length of 305 laughs . Up to the construction of the Silberkammer treasure trove , which was to be driven under with the tunnel, 100 laughers were still missing.

In 1844 the knight St. Georg Stolln was released.

In 1845 the Freiberg master art master , Friedrich Wilhelm Schwamkrug , prepared an expert opinion for the construction of a turbine art tool on behalf of the mine. The mine management then decided to build the turbine artifacts instead of the planned artifacts. The construction started in 1849 on the Katharinaschacht was subsidized by the Oberbergamt in Freiberg . On November 12, 1850, the artificial tools went into operation and replaced the previous dewatering with reels .

In 1853 the construction of a new stamping mill with 30 stamps and a laundry with 8 herds began. The facility was completed in 1854. The costs amounted to 7774 dollars 18 Neugroschen and one penny. After the plan to go under the old buildings of the Silberkammer treasure trove with the Jung-Adler Stolln was abandoned, the work on the Silberkammer shaft began . Work in the Weißer-Adler Stolln has been stopped.

The years between 1840 and 1855 were the mine’s most successful years. The yield and payments are known for six years. So approx. 52 t. Lead and 200 kg of silver were delivered to the hut against payment of 13,930 thalers. In these six years, however, the mine also received 12,807 thalers in advances and grants.

In 1856, due to a shortage of ore, the stamp mill and the laundry were stopped. The workforce was reduced from 94 to 14 men and only the most necessary work was carried out. The Peter and Paul Stolln was closed.

On July 31, 1858, after prolonged rainfall, there was a flood disaster in the Schwarzwassertal and its tributaries. The Halsbach flowed through the mouth of the Jung-Adler tunnel and put the burrows under the tunnel under water.

Since the financial means were limited, the workforce fell to 10 men. Regular mining operations were no longer possible and ore bursts did not occur.

With the abolition of the Schwarzenberg Mining Authority in 1867, the Johanngeorgenstadt district committee left the management of the mine to a union founded in 1868. The chairman of the mining board was the chairman of the Johanngeorgenstadt district committee, Ernst Fedor Alexander Degen, the justice of the peace and mayor of Johanngeorgenstadt .

The company as a commercialized mine

In 1864 digging attempts were made on the old blessing god adit on Taubenstein near Rittersgrün . In 1868 the excavation of the tunnel began. The aim here was the mining of bismuth ores in order to participate in the boom in the price of bismuth. The price per kg rose from 3.20 marks in 1858 to 31.81 marks in 1868. However, there was no success. 16.20 kg of bismuth ores were funded at a price of 257.40 marks. Thereupon the operation in the tunnel stopped again.

In 1869, a contract was signed with the Prussian miner Rudolf Wiester from Waldenburg in Silesia for the mining of zinc blende in the silver chamber shaft .

In 1880 the Katharinaschach t reached a saigere depth of 148 meters under the Jung-Adler Stolln .

In 1889 all financial support from the mining pardon fund to the operation of the Unverhofft Glück mine on the eighth was stopped .

In 1892 the liquidation of the union was ended and in the third quarter of 1892 all rights were transferred to Gustav Linnartz from Bonn. The St. Wolfgang tunnel near Henneberg was newly awarded as an attachment to the pit .

Between 1868 and 1892, 104.2 t of lead ore worth 14,208 marks were mined. In the same period, the mine received additional fees and subsidies of 142,758 marks. The workforce at this time was 12 men and in 1887 it fell to 6 men.

The company under Linnartz and Erben

The operation of the mine was only kept up with two men. Between 1893 and 1904, the sale of stockpile stones and display steps generated income of 370 marks.

In 1897 the St. Wolfgang Stolln was closed .

In 1913 the mining operations were stopped.

In 1916, after the death of Gustav Linnartz, his heirs took over all rights.

With the outbreak of the First World War , the prices for bismuth rose sharply. In 1913 a kg cost 15 marks, in 1916 it was 25 marks and in 1918 it was 60 marks. As a result, operations were resumed with two men in the blessing of God's adit. Between 1915 and 1918 3.14 tons of bismuth ore were mined for 1548 marks. In the same period, however, an additional 15,315 marks were paid.

In August 1918, the Linnartz heirs transferred the rights to the Blessing of God Stolln to the Gesellschaft für Grubenbetrieb mbH in Berlin .

In 1922 they tried again to start mining operations again by clearing the Jung-Adler tunnel . At the end of February 1923 the work was finally stopped due to lack of money. The pit was now on time.

From 1933 Walther Linnartz from Oberweistritz in the Schweidnitz district (Silesia) was the new owner of the mine.

In March 1936 the mining rights were withdrawn and the mine cleared in December 1936. Even the self-sufficiency efforts of the German Reich and state-supported raw material prices no longer led to a resumption of mining.

Last operating period

Between 1950 and 1952, the Katharinaschacht was cleared as Schurf 10 of the Wismut AG by the Wismut Object 08 . The work was discontinued without result.

Pits belonging to the mine field

In the immediate vicinity there was the Schwarzer-Adler Stolln , the Upper and Tiefen Weißer-Adler Stolln , south of it the Tiefen Fünf Brüder Stolln and the Pluto Stolln and further above in the Halsbachtal the Jung-Adler Stolln and the Hilfe Gottes Stolln . The Upper and Lower Knights St. Georg Stolln and the Katharinaschacht were already north of the connecting road from Jägerhaus to Schwarzenberg .

White and black eagles

The two pits were built on a 0.50 to 3.00 meter thick skarn deposit. The camp strikes at 350 ° –360 ° and dips to the west at 45 ° –50 °. The mineralization consists of sphalerite, galena, pyrite and chalcopyrite. The ore management of the warehouse is tied to penetrating corridors. The camp was driven to a length of 220 meters and a Saiger depth of 70 meters. The most important ore fall was due to the penetration of the Golden Rose Flat by the skarn deposit. This 0.50–1.00 meter thick corridor strikes at 141 ° –156 ° and dips into the SW at 67 ° -70 °. The ore falls down from the surface to a depth of 40 meters with a width of 8-18 meters. The ore fall is numbing under the bottom of the Schwarzer-Adler tunnel . The hanging wall of the skarn deposit forms a 0.50–4.00 meter thick limestone seam. This was temporarily broken down as an additive for iron smelting. There are no reliable figures on the amount extracted. For the period between 1772 and 1836 11,000 t were detected.

Both pits were named as Eigenlehner pits in 1774. In 1783 the Schwarzer Adler mine fell into the open. In 1785, the owner of the Weißer Adler mine left the drive of the Tiefen Weißer-Adler tunnel to the trades of Unverhofft Glück an der Echte . From 1833 to 1835, the Schwarzer Adler treasure trove , which has since been resumed, received an advance payment of 800 thalers from the State Pay Office of the Ministry of Finance for the exploration of the mine field. Since no further advances were paid, the Obere Weißer-Adler Stolln , the Schwarzadler Maaßen and the Goldene Rose Fundgrube were canceled. In 1855 all work in the mine field was stopped.

Five brothers

Five skarn ore deposits were developed in the field of the mine. The most important camp was the Five Brothers Camp, 1.00 to 1.50 meters thick . The camp strikes at 48 ° –51 ° and falls to the NW at 55 ° –60 °. The mineralization consists of sphalerite, galena, pyrite, chalcopyrite and arsenopyrite. The camp was developed over a striking length of 140 meters. The hanging wall of the skarn deposit forms a 0.50–1.00 meter thick limestone seam. Two other camps are known by name, the Hope Camp and the Rudolph Camp . Together with the other two unnamed camps, however, they played a subordinate role. The Rudolph camp was mineralized only in the area of ​​a 0.80–1.00 meter thick dike. The late dike strikes at 100 ° and dips to the south at 70 °. The mineralization consists of galena, sphalerite and chalcopyrite.

For a short time, graphite was mined experimentally in graphite- bearing quartzite schist that had been driven over.

The Five Brothers Fundgrube am Bretberge was first mentioned in 1716. In 1774 it was run as an additional mine. In 1777 the pit fell into the open. In 1784 it was resumed as a private labor mine and consolidated in 1798 with the Unverhofft Glück Fundgrube . In 1808 the Five Brothers Fundgrube and the Five Brothers Stolln were renounced .

In the quarter of Trinity 1828 the depth Peter and Paul Stolln was overcome by the unexpected luck treasure trove . After 94 laughs , he reached the Five Brothers Camp. At the same time a place was driven into the Weißer Adler treasure trove . Between 1833 and 1836 the mine received 994 thalers from the State Pay Office of the Ministry of Finance to drive the Peter and Paul Stolln . In 1856 all work was stopped.

Pluto Erbstolln and treasure trove

In 1826 there was the first news from the mine. In 1832–1833 the mine received 320 thalers from the State Pay Office of the Ministry of Finance to drive the tunnel. The tunnel ran over five ore deposits that were either ore poor or deaf. In 1835 the work was stopped.

In 1855 Hermann Dietrich Lindheim from Ullersdorf in the district of Glatz found the mine. The tunnel was opened to examine the camp for zinc blende. In 1856 the work was stopped without result.

literature

  • Werner Markgraf: The silver washing in Antonsthal . In: Erzgebirgische Heimatblätter , No. 4/1993, pp. 17-19.
  • S. Tröger: "Unexpected luck". Helvin-Neufund near Antonsthal in the Saxon Ore Mountains. In: LAPIS 31 (2), pp. 38-39.
  • Calendar for the Saxon mountain and hut man 1827 to 1851 Royal Bergakademie Freiberg
  • Yearbook for the mountain and hut man 1852 to 1872 Royal Bergakademie zu Freiberg
  • Yearbook for mining and metallurgy in the Kingdom of Saxony from 1873 to 1917
  • Yearbook for mining and metallurgy in Saxony 1918 to 1934
  • Werner Runge: Chronicle of the bismuth . Ed .: Wismut GmbH. Self-published, Chemnitz 1999, OCLC 84330928 (CD).

Web links

Individual evidence

  1. Illustration of the hat house in the Deutsche Fotothek, 1928
  2. ^ Geological map of the Free State of Saxony, sheet 5442 Aue / Freiberg 2009
  3. ^ Marmore in the Ore Mountains , Mining Monograph Volume 2016, Freiberg 2010, page 158
  4. Werner Markgraf: The silver washing in Antonsthal . In: Erzgebirgische Heimatblätter , No. 4/1993, pp. 17-19.
  5. Yearbook for the Berg- und Hüttenmann, 1829 , page 168