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Mineralien Kalender
Edelsteintage Konstanz
https://www.chiemgauer-mineralien-fossiliensammler.de/
hausen - Mineraliengrosshandel.com
https://www.mineralbox.biz
https://www.mineral-bosse.de
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Dirk3000, blackforestmining2, Dieter, Carlos, FRAPO, koibonsai, Sargentodoxa
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https://www.juwelo.de
https://www.edelsteine-neuburg.de
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05. Apr. - Ta­tort Franken – Das stein­erne Grab der Rie­sen­lurche
10. Apr. - Min­er­alien­börse im Lausitz-Cen­ter in Hoy­er­sw­er­da
11. Apr. - Min­er­alien­börse im Lausitz-Cen­ter in Hoy­er­sw­er­da
11. Apr. - 23. Min­er­alien-IN­FO im Ahrn­tal - Südtirol
11. Apr. - Min­er­alien.- und Fos­silien­börse Rosen­heim - Auer Fes­thalle
12. Apr. - 31. Min­er­alien- und Fos­silien­samm­ler­börse Eg­gen­burg / AT
12. Apr. - Min­er­alien­börse Her­born-Merken­bach
17. Apr. - GERA: Bild­vor­trag „Der Ein­fluss Preußens auf den Berg­bau im
19. Apr. - 25. Bay­er­wald-Min­er­alien­börse Bad Kötzt­ing, DE
26. Apr. - 34. Min­er­alien- und Fos­silien­börse Arns­berg-Müschede, DE
09. May - 77. In­ter­na­tio­nale Min­er­alien­börse in Freiberg/Sach­sen
09. May - 50. Min­er­alien- & Fos­silien­börse “MIN­ER­AN­T2026” - Gol­d­en
09. May - 43. Aschaf­fen­burg­er Min­er­alien­börse
https://vfmg.de/der-aufschluss/
https://fossilsworldwide.de/
https://www.lithomania.de
Deutschland/Nordrhein-Westfalen/Arnsberg, Bezirk/Hochsauerlandkreis/Arnsberg/Holzen
 
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Calcit
© Millerit
https://www.juwelo.de
https://www.edelsteine-neuburg.de
https://crystalparadise.de/
05. Apr. - Ta­tort Franken – Das stein­erne Grab der Rie­sen­lurche
10. Apr. - Min­er­alien­börse im Lausitz-Cen­ter in Hoy­er­sw­er­da
11. Apr. - Min­er­alien­börse im Lausitz-Cen­ter in Hoy­er­sw­er­da
11. Apr. - 23. Min­er­alien-IN­FO im Ahrn­tal - Südtirol
11. Apr. - Min­er­alien.- und Fos­silien­börse Rosen­heim - Auer Fes­thalle
12. Apr. - 31. Min­er­alien- und Fos­silien­samm­ler­börse Eg­gen­burg / AT
12. Apr. - Min­er­alien­börse Her­born-Merken­bach
17. Apr. - GERA: Bild­vor­trag „Der Ein­fluss Preußens auf den Berg­bau im
19. Apr. - 25. Bay­er­wald-Min­er­alien­börse Bad Kötzt­ing, DE
26. Apr. - 34. Min­er­alien- und Fos­silien­börse Arns­berg-Müschede, DE
09. May - 77. In­ter­na­tio­nale Min­er­alien­börse in Freiberg/Sach­sen
09. May - 50. Min­er­alien- & Fos­silien­börse “MIN­ER­AN­T2026” - Gol­d­en
09. May - 43. Aschaf­fen­burg­er Min­er­alien­börse
Calender
https://vfmg.de/der-aufschluss/
https://fossilsworldwide.de/
https://www.lithomania.de
 
 
 
Mineralienatlas (name for mineral atlas) is the platform for people interested in mineralogy, geology, palaeontology and mining since 2001. We operate a significant database for minerals, fossils, rocks and their localities. Mineralienatlas is not limited to a section. We bring together information and inform comprehensive.

To complete our information constantly, we need your support. With us, everyone can and should participate. Currently Mineralienatlas is used and expanded by 10530 members. Every month hundreds of thousands of visitors use our website as an information source.
 
Geolitho Foundation non-profit GmbH
Geolitho Foundation non-profit GmbH is the non-profit supporter of the Mineral Atlas (Mineralienatlas), the Lithotheque, the Geolitho Collection Management and the Marketplace and Store by collectors for collectors. The Foundation promotes public education in the field of mineralogy, geology, paleontology and mining by operating, maintaining and further expanding earth science projects.
 
Edelsteintage Konstanz
Mineralien Kalender
https://www.chiemgauer-mineralien-fossiliensammler.de/
https://vfmg.de/der-aufschluss/
https://fossilsworldwide.de/
https://www.mineral-bosse.de
 
Ge­o­log­ic Por­trait - Weather­ing and Ero­sionWeathering is a continous process by which rocks are broken down and decomposed by the action of humidity (rain), wind, temperature changes, chemical agents, bacteria and plants. Being an integral part of the rocks cycle, weathering is the initial stage towards denudation, which results in general lowering of the land surface. An essential feature is that it affects rocks in situ; no transportation is involved. This is the factor which dsitinguishes weathering from erosion. The two main types of weathering are mechanical and chemical. Climate plays a leading role in weathering, whereas chemical weathering is almost absent in arid regions. Effecrtive freeze-thaw cycles are confined to cold temperate and permafrost climates.

Erosion is part of the process of denudation which involves the wearing away of land surface by mechanical action of transported debris. Main cycles of erosion are glaciers, wind erosion, marine erosion.
Weather­ing is a conti­nous pro­cess by which rocks are bro­ken down and de­com­posed by the ac­tion of hu­mid­i­ty (rain), wind, tem­per­a­ture changes, chem­i­cal agents, bac­te­ria and plants. Be­ing an in­te­gral part of the rocks cy­cle, weather­ing is the ini­tial stage to­wards de­nu­da­tion, which re­sults in gen­er­al l ... moreWeathering is a continous process by which rocks are broken down and decomposed by the action of humidity (rain), wind, temperature changes, chemical agents, bacteria and plants. Being an integral part of the rocks cycle, weathering is the initial stage towards denudation, which results in general lowering of the land surface. An essential feature is that it affects rocks in situ; no transportation is involved. This is the factor which dsitinguishes weathering from erosion. The two main types of weathering are mechanical and chemical. Climate plays a leading role in weathering, whereas chemical weathering is almost absent in arid regions. Effecrtive freeze-thaw cycles are confined to cold temperate and permafrost climates.

Erosion is part of the process of denudation which involves the wearing away of land surface by mechanical action of transported debris. Main cycles of erosion are glaciers, wind erosion, marine erosion.
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ZincIin 1546 Georgius Agricola reported about a white metal which is fused to the Rammelsberg lead and silver melter and that you could scrape off. He called this metal "contrefey", because it could imitate gold. Agricola did not recognize that this metal was zinc. He further observed that a similar metal, which he named from some unknown reasons "ZINCUM" arose under similar circumstances in Silesia during smelting.
Iin 1546 Ge­orgius Agri­co­la re­port­ed about a white me­t­al which is fused to the Ram­mels­berg lead and sil­ver mel­ter and that you could scrape off. He called this me­t­al "con­tre­fey", be­cause it could im­i­tate gold. Agri­co­la did not rec­og­nize that this me­t­al was zinc. He fur­ther ob­served that a sim­i­lar met ... moreIin 1546 Georgius Agricola reported about a white metal which is fused to the Rammelsberg lead and silver melter and that you could scrape off. He called this metal "contrefey", because it could imitate gold. Agricola did not recognize that this metal was zinc. He further observed that a similar metal, which he named from some unknown reasons "ZINCUM" arose under similar circumstances in Silesia during smelting.
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Kies­grube Oh­le & Lau in Groß Pam­pau... Forschungsbohrungen (1988, Groß Pampau I & II) ergaben, dass ab ca. 7 m Tiefe der Tonschichten das mittlere Langenfeldium, ab ca. 19 m das untere Langenfeldium und ab ca. 29 m das obere Reinbekium beginnnt. Während des Hauptabbaus (Seeseite) in Groß Pampau waren ca. 17 m der Glimmertonschichten mehr oder weniger zugänglich, als Ton für die Deponieabdeckung abgebaut wurde. Anhand der aufgelesenen Fossilien (mehr als 150 Arten konnten gefunden werden) und dem Vergleich dieser Arten mit heute noch in gemäßigteren Regionen lebenden Vertretern (und deren Lebensbedingungen), geht man von einer damals durchschnittlichen Wassertiefe von 50 - 80 m aus. ...
... Forschungs­bohrun­gen (1988, Groß Pam­pau I & II) er­gaben, dass ab ca. 7 m Tiefe der Ton­schicht­en das mittlere Lan­gen­feldi­um, ab ca. 19 m das un­tere Lan­gen­feldi­um und ab ca. 29 m das obere Rein­bek­i­um be­ginn­nt. Während des Haupt­ab­baus (See­seite) in Groß Pam­pau waren ca. 17 m der Glim­mer­ton­schicht­en ... more... Forschungsbohrungen (1988, Groß Pampau I & II) ergaben, dass ab ca. 7 m Tiefe der Tonschichten das mittlere Langenfeldium, ab ca. 19 m das untere Langenfeldium und ab ca. 29 m das obere Reinbekium beginnnt. Während des Hauptabbaus (Seeseite) in Groß Pampau waren ca. 17 m der Glimmertonschichten mehr oder weniger zugänglich, als Ton für die Deponieabdeckung abgebaut wurde. Anhand der aufgelesenen Fossilien (mehr als 150 Arten konnten gefunden werden) und dem Vergleich dieser Arten mit heute noch in gemäßigteren Regionen lebenden Vertretern (und deren Lebensbedingungen), geht man von einer damals durchschnittlichen Wassertiefe von 50 - 80 m aus. ...
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San Ti­m­o­teo Mine at La Union min­ing area, Mur­cia, SpanienGypsum needels and blue Baryte have made this mine known for mineral collectors. A recent report from Sept. 2012 shows that good finds are still possible. To visit this mine is relatively easy. The evacuation of the gypsum needels on the other hand is more difficult. Unfortunately, vandals have left their mark, but read and see it yourself. A report by Stefan Schorn. (Article in German)
Gyp­sum needels and blue Baryte have made this mine known for min­er­al col­lec­tors. A re­cent re­port from Sept. 2012 shows that good finds are still pos­si­ble. To vis­it this mine is rel­a­tive­ly easy. The evac­u­a­tion of the gyp­sum needels on the other hand is more dif­fi­cult. Un­for­tu­nate­ly, van­dals have left ... moreGypsum needels and blue Baryte have made this mine known for mineral collectors. A recent report from Sept. 2012 shows that good finds are still possible. To visit this mine is relatively easy. The evacuation of the gypsum needels on the other hand is more difficult. Unfortunately, vandals have left their mark, but read and see it yourself. A report by Stefan Schorn. (Article in German)
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Pfeif­fer Mine at min­ing dis­trict Wölsen­dorf (in ger­man)This report gives a lot of details of the history of this mine. Contribution from Michael Kommer (written in german language)
This re­port gives a lot of de­tails of the his­to­ry of this mine. Con­tri­bu­tion from Michael Kom­mer (writ­ten in ger­man lan­guage) ... moreThis report gives a lot of details of the history of this mine. Contribution from Michael Kommer (written in german language)
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Public Sci­ence Pro­jects / Sk­lo­dowskite and Bolt­woodite from Lavri­on – an In­ter­est­ing Epi­taxyAt the site Paliokamariza Mine No. 18 (Plaka, Lavrion, Attica, Greece), yellow, needle-like uranium minerals were observed growing on gypsum. Under UV light (365 nm), two distinct fluorescence colors appeared: shorter, thinner needles glowed bright green, while longer, well-formed needles glowed yellow...

This study illustrates a notable epitaxial relationship between Boltwoodite (green luminescent) and Sklodowskite (yellow luminescent) on a gypsum matrix, discovered at Lavrion, Greece. Luminescent differentiation under UV, combined with spectroscopic and EDX analyses, revealed the intergrowth of the two uranium silicates—providing insight into their growth and crystallization behavior
At the site Palioka­mariza Mine No. 18 (Pla­ka, Lavri­on, At­ti­ca, Greece), yel­low, nee­dle-like ura­ni­um min­er­als were ob­served grow­ing on gyp­sum. Un­der UV light (365 nm), two dist­inct flu­o­res­cence col­ors ap­peared: short­er, thin­n­er nee­dles glowed bright green, while longer, well-formed nee­dles glowed yel ... moreAt the site Paliokamariza Mine No. 18 (Plaka, Lavrion, Attica, Greece), yellow, needle-like uranium minerals were observed growing on gypsum. Under UV light (365 nm), two distinct fluorescence colors appeared: shorter, thinner needles glowed bright green, while longer, well-formed needles glowed yellow...

This study illustrates a notable epitaxial relationship between Boltwoodite (green luminescent) and Sklodowskite (yellow luminescent) on a gypsum matrix, discovered at Lavrion, Greece. Luminescent differentiation under UV, combined with spectroscopic and EDX analyses, revealed the intergrowth of the two uranium silicates—providing insight into their growth and crystallization behavior
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Test­bericht Scu­ri­on 1500 mit UV Op­tionDie speziell auf die Bedürfnisse für Mineraliensammler abgestimmte Scurion 1500 mit UV Option wird primär in 2 Teilen und Zubehör geliefert. Auf der einen Seite der Lampenkopf mit Verbindungskabel und Durchführung für den Batteriekasten. Und dann der Batteriekasten, der in seiner geschwungen Form an einen Flachmann erinnert. Zum Testen lag uns eine Version mit kurzem Kabel zur Befestigung von Lampenkopf und Batteriekasten am Helm vor.
Die speziell auf die Bedürfnisse für Min­er­alien­samm­ler abges­timmte Scu­ri­on 1500 mit UV Op­tion wird primär in 2 Teilen und Zube­hör gelie­fert. Auf der ei­nen Seite der Lam­p­enkopf mit Verbin­dungsk­a­bel und Durch­führung für den Bat­teriekas­ten. Und dann der Bat­teriekas­ten, der in sein­er gesch­wun­gen Form an ... moreDie speziell auf die Bedürfnisse für Mineraliensammler abgestimmte Scurion 1500 mit UV Option wird primär in 2 Teilen und Zubehör geliefert. Auf der einen Seite der Lampenkopf mit Verbindungskabel und Durchführung für den Batteriekasten. Und dann der Batteriekasten, der in seiner geschwungen Form an einen Flachmann erinnert. Zum Testen lag uns eine Version mit kurzem Kabel zur Befestigung von Lampenkopf und Batteriekasten am Helm vor.
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