| Revision as of 17:45, 10 August 2022 editA bit iffy (talk | contribs)Autopatrolled, Extended confirmed users, Pending changes reviewers, Rollbackers48,670 edits + short descriptionTags: Mobile edit Mobile web edit Advanced mobile edit← Previous edit | Latest revision as of 16:54, 21 October 2024 edit undoMonkbot (talk | contribs)Bots3,695,952 editsm Task 20: replace {lang-??} templates with {langx|??} ‹See Tfd› (Replaced 1);Tag: AWB | ||
| (One intermediate revision by one other user not shown) | |||
| Line 5: | Line 5: | ||
| | width = | | width = | ||
| | caption = 1.2 cm, colourless and transparent ] alongside ] from the Clara Pit | | caption = 1.2 cm, colourless and transparent ] alongside ] from the Clara Pit | ||
| ⚫ | | pushpin_map =Germany | ||
| | native_name = Grube Clara | |||
| ⚫ | | pushpin_map = | ||
| | pushpin_label_position = | | pushpin_label_position = | ||
| | pushpin_label = | | pushpin_label = | ||
| Line 13: | Line 12: | ||
| | pushpin_map_caption = | | pushpin_map_caption = | ||
| | coordinates = | | coordinates = | ||
| | latitude = | |||
| | longitude = 8.228653 | |||
| | map_type = Germany | |||
| | code = | | code = | ||
| | scale = | | scale = | ||
| Line 34: | Line 30: | ||
| | closing year = open | | closing year = open | ||
| }} | }} | ||
| The '''Clara Pit''' ({{ |
The '''Clara Pit''' ({{langx|de|Grube Clara}}) or '''Clara Mine''' is a working ] in ] in the ] in ] in which the industrial minerals, ] and ] are mined. | ||
| == Importance == | == Importance == | ||
Latest revision as of 16:54, 21 October 2024
Mine in the Black Forest, Germany 1.2 cm, colourless and transparent fluorite alongside baryte from the Clara Pit | |
| Location | |
|---|---|
  Clara Pit | |
| Location | Oberwolfach |
| History | |
| Opened | 1898 |
| Active | Grube Clara |
| Closed | open |
| Owner | |
| Company | Sachtleben Bergbau GmbH und Co. KG |
The Clara Pit (German: Grube Clara) or Clara Mine is a working mine in Oberwolfach in the Black Forest in Germany in which the industrial minerals, baryte and fluorspar are mined.
Importance
The pit is well known because, to date, over 375 different minerals have been found here (as at November 2004), including several that are very rare. The portal of the mine is located in the upper part of the Rankach valley. The processing plant is near Wolfach-Kirnbach in the Kinzig valley. Since 1898, the Clara Pit has mined over 3 million tonnes of baryte and over 2 million tonnes of fluorspar. Baryte is used inter alia in sound attenuation, radiation protection and the deep mining industry. Fluorspar or fluorite is used in the metal industry as a plasticiser (e.g. in welding electrodes) in the glass and ceramics industry and in the chemical industry for the production of hydrofluoric acid.
The pit, which is operated by the firm of Sachtleben Bergbau is the last active mine of the many that were once worked in the Black Forest.
Its most common minerals are azurite, baryte, chrysocolla, claraite, cornwallite, fluorite, goethite, clinoclase, copper, malachite, pyrite, pyromorphite, mimetite, stolzite, silver und scorodite.
Mineral tailings
On the mineral tailings site of the Clara Pit in Wolfach-Kirnbach the various minerals may be looked for in separate raw mineral ore spoil heaps.
Museum
In the Oberwolfach Mining and Mineral Museum in the village of Kirche over 200 minerals from the pit are displayed.
Geology
The fissures in the mine are part of the Friedrich Christian Herrensegen Fault Zone in the Black Forest Gneiss Complex.
Type localities
The Clara Pit has given its name to the mineral, claraite and is also the type locality for the following minerals: agardite-(Ce), arsenbrackebuschite, arsenocrandallite, arsenogorceixite, arsenogoyazite, bariopharmacosiderite, benauite, bismutostibiconite, claraite, cualstibite, phosphofibrite, phyllotungstite, rankachite, rhabdophane-(Ce), tungstibite, uranotungstite.
References
- Mineralienhalde Grube Clara
- Agardite at mindat.org. Retrieved 13 Apr 2017.
- Arsenbrackebuschite at mindat.org. Retrieved 13 Apr 2017.
- Arsenocrandallite at mindat.org. Retrieved 13 Apr 2017.
- Arsenogorceixite at mindat.org. Retrieved 13 Apr 2017.
- Arsenogoyazite at mindat.org. Retrieved 13 Apr 2017.
- Bariopharmacosiderite at mindat.org. Retrieved 13 Apr 2017.
- Benauite at mindat.org. Retrieved 13 Apr 2017.
- Bismutostibiconite at mindat.org. Retrieved 13 Apr 2017.
- Claraite at mindat.org. Retrieved 13 Apr 2017.
- Cualstibite at mindat.org. Retrieved 13 Apr 2017.
- Phosphofibrite at mindat.org. Retrieved 13 Apr 2017.
- Phyllotungstite at mindat.org. Retrieved 13 Apr 2017.
- Rankachite at mindat.org. Retrieved 13 Apr 2017.
- Rhabdophane at mindat.org. Retrieved 13 Apr 2017.
- Tungstibite at mindat.org. Retrieved 13 Apr 2017.
- Uranotungstite at mindat.org. Retrieved 13 Apr 2017.
External links
- Grube Clara at Mineralienatlas.de
- Grube Clara at Mindat.org
- Oberwolfach Mining and Mineral Museum
- Photograph of the mine portal
- Grube Clara at Clara-Mineralien.de Information on the pit, minerals and geology
- Grube Clara at Mineralienhalde.de
48°22′47″N 8°13′43″E / 48.37975°N 8.22865°E / 48.37975; 8.22865
Categories: