de en
 

Welcome guest

Login
Register
Imprint
Protection of privacy
Message
Our team
Help and how it works
https://www.chiemgauer-mineralien-fossiliensammler.de/
Die 63. Rhein-Neckar-Mineralienbörse in Walldorf
https://www.juwelo.de
https://www.phillisverlag.de/Kalender-Shop/Mineralienkalender/
https://vfmg.de/der-aufschluss/
https://edelsteintage-bremen.de
1.854 Gäste, 4 Mitglieder (2 Versteckte)
JuliaG, Günter Blaß
Derzeit sind keine Benutzer im Chat
https://fossilsworldwide.de/
https://crystalparadise.de/
https://www.mineral-bosse.de
19. Feb. - Tr­ef­fen der Min­er­alien- und Fos­silien­fre­unde Dort­mund
20. Feb. - GERA: Bild­vor­trag „Amethyst – ein ‚O­mas­tein‘ in ein­er Farbe,
21. Feb. - 35.Min­er­alien­börse Flöha
21. Feb. - 16. Mit­tel­säch­sisch­er Min­er­alien- und Fos­silien­tr­eff, DE
22. Feb. - Wilns­dor­fer Min­er­alien- und Berg­baubörse, DE
28. Feb. - GERA: MIN­ER­ALIEN-LIEB­HABER-TAG
01. Mar. - Min­er­alien­börse
01. Mar. - 18. In­tern. Mi­cro­moun­ter Tausch­tag in Rosen­heim/Ober­bay­ern
07. Mar. - In­ter­na­tio­nale Min­er­alien-, Fos­silien- und Sch­muck­börse Leip
08. Mar. - Rein­heim/Ge­or­gen­hausen – 30. Oden­wälder Min­er­alien­tag
08. Mar. - Arzberg­er Min­er­alien und Fos­silien­börse
14. Mar. - 27. Bit­ter­felder Min­er­alien- und Fos­silien­börse im Rathaus
15. Mar. - Min­er­alien­börse
15. Mar. - Nürn­berg­er Min­er­alien- & Fos­silien­börse DE
20. Mar. - GERA: Bild­vor­trag „Namibia – Sam­meln un­ter der Sonne Afrikas
22. Mar. - 63. Rhein-Neckar-Min­er­alien­börse in Wall­dorf
29. Mar. - 51. Min­er­alien­börse in Aue/Sach­sen am 29.03.2026
29. Mar. - Tausch­tag der Säch­sischen Achat­samm­ler in Zwönitz/Horm­ers­dor
https://www.lithomania.de
https://www.mineralbox.biz
https://www.edelsteine-neuburg.de
Italien/Toskana (Toscana)/Massa-Carrara, Provinz/Carrara/Facciata
 
Image of the day
Schwefel
© Matteo Chinellato
https://fossilsworldwide.de/
https://crystalparadise.de/
https://www.mineral-bosse.de
19. Feb. - Tr­ef­fen der Min­er­alien- und Fos­silien­fre­unde Dort­mund
20. Feb. - GERA: Bild­vor­trag „Amethyst – ein ‚O­mas­tein‘ in ein­er Farbe,
21. Feb. - 35.Min­er­alien­börse Flöha
21. Feb. - 16. Mit­tel­säch­sisch­er Min­er­alien- und Fos­silien­tr­eff, DE
22. Feb. - Wilns­dor­fer Min­er­alien- und Berg­baubörse, DE
28. Feb. - GERA: MIN­ER­ALIEN-LIEB­HABER-TAG
01. Mar. - Min­er­alien­börse
01. Mar. - 18. In­tern. Mi­cro­moun­ter Tausch­tag in Rosen­heim/Ober­bay­ern
07. Mar. - In­ter­na­tio­nale Min­er­alien-, Fos­silien- und Sch­muck­börse Leip
08. Mar. - Rein­heim/Ge­or­gen­hausen – 30. Oden­wälder Min­er­alien­tag
08. Mar. - Arzberg­er Min­er­alien und Fos­silien­börse
14. Mar. - 27. Bit­ter­felder Min­er­alien- und Fos­silien­börse im Rathaus
15. Mar. - Min­er­alien­börse
15. Mar. - Nürn­berg­er Min­er­alien- & Fos­silien­börse DE
20. Mar. - GERA: Bild­vor­trag „Namibia – Sam­meln un­ter der Sonne Afrikas
22. Mar. - 63. Rhein-Neckar-Min­er­alien­börse in Wall­dorf
29. Mar. - 51. Min­er­alien­börse in Aue/Sach­sen am 29.03.2026
29. Mar. - Tausch­tag der Säch­sischen Achat­samm­ler in Zwönitz/Horm­ers­dor
Calender
https://www.lithomania.de
https://www.mineralbox.biz
https://www.edelsteine-neuburg.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 10458 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.
 
https://edelsteintage-bremen.de
https://crystalparadise.de/
https://vfmg.de/der-aufschluss/
https://www.juwelo.de
https://fossilsworldwide.de/
https://www.chiemgauer-mineralien-fossiliensammler.de/
 
The min­ing area Marien­berg in the Erzge­birge Re­gionAfter the discovery of silver deposits in Christiansdorf - the now called Freiberg - over the time the mining was also expanded on the upper mountain. Thus from about 1240, the tin deposits (with the beginnings of subsurface mining also silver) around Ehrenfriedersdorf was mined. By finding rich silver adits in the 2nd third of the 15th Century the great mountain towns like Schneeberg (municipal law since 1477) and Annaberg (municipal law since 1496) was founded. (Article in german)
Af­ter the dis­cov­ery of sil­ver de­posits in Chris­tians­dorf - the now called Freiberg - over the time the min­ing was al­so ex­pand­ed on the up­per moun­tain. Thus from about 1240, the tin de­posits (with the be­gin­n­ings of sub­sur­face min­ing al­so sil­ver) around Ehren­fried­ers­dorf was mined. By find­ing rich si ... moreAfter the discovery of silver deposits in Christiansdorf - the now called Freiberg - over the time the mining was also expanded on the upper mountain. Thus from about 1240, the tin deposits (with the beginnings of subsurface mining also silver) around Ehrenfriedersdorf was mined. By finding rich silver adits in the 2nd third of the 15th Century the great mountain towns like Schneeberg (municipal law since 1477) and Annaberg (municipal law since 1496) was founded. (Article in german)
appetizer image
In­di­ca­tor stoneA Scandinavian indicator stone is a glacial erratic composed of a characteristic rock type derived from a small known source area in Scandinavia. This term not only applies to igneous and metamorphic rocks but also to some sedimentary rocks. The Jotnian Sandstone and most of the Palaeozoic limestones, and the Old Red Sandstone are not included in the definition, although the presence of these and other rocks provide some evidence about the source area(s) of erratics and should certainly not be neglected in a stone count. In all cases we recommend including the whole assemblage of erratics/stones in such account. This makes it possible to use several methods of Interpretation. However, it should be pointed out that the practise used in the past, whereby each researcher had her/his own method of interpreting stone counts, has proved to be unsatisfactory. We demonstrate on the bases of over 2000 counts of indicator stones that we have carried out on assemblages mostly from Lower Saxony and Schleswig-Holstein, but also from other N.German states and neighbouring countries, that the TGZ method (LÜTTIG 1958) yields the most reliable results. In addition to this method, the sources of individual indicator stones may be plotted on a so-called circle map and can be integrated with possible source data and the relative frequencies of other erratics in the assemblage. Some rock types are more suitable as indicator stones then others. It is unwise to use clearly unsuitable rock types; this would considerably reduce the reliability of the method and lead to erroneous results.
A Scan­di­na­vian in­di­ca­tor stone is a gla­cial er­rat­ic com­posed of a char­ac­teris­tic rock type de­rived from a small known source area in Scan­di­navia. This term not on­ly ap­plies to ig­neous and me­ta­mor­ph­ic rocks but al­so to some sed­i­men­tary rocks. The Jot­nian Sand­s­tone and most of the Palaeo­zoic lime­s­tone ... moreA Scandinavian indicator stone is a glacial erratic composed of a characteristic rock type derived from a small known source area in Scandinavia. This term not only applies to igneous and metamorphic rocks but also to some sedimentary rocks. The Jotnian Sandstone and most of the Palaeozoic limestones, and the Old Red Sandstone are not included in the definition, although the presence of these and other rocks provide some evidence about the source area(s) of erratics and should certainly not be neglected in a stone count. In all cases we recommend including the whole assemblage of erratics/stones in such account. This makes it possible to use several methods of Interpretation. However, it should be pointed out that the practise used in the past, whereby each researcher had her/his own method of interpreting stone counts, has proved to be unsatisfactory. We demonstrate on the bases of over 2000 counts of indicator stones that we have carried out on assemblages mostly from Lower Saxony and Schleswig-Holstein, but also from other N.German states and neighbouring countries, that the TGZ method (LÜTTIG 1958) yields the most reliable results. In addition to this method, the sources of individual indicator stones may be plotted on a so-called circle map and can be integrated with possible source data and the relative frequencies of other erratics in the assemblage. Some rock types are more suitable as indicator stones then others. It is unwise to use clearly unsuitable rock types; this would considerably reduce the reliability of the method and lead to erroneous results.
appetizer image
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
appetizer image
Beryl - (Goshenite, Aqua­marine, Emer­ald, Mor­ganite, He­lio­dore ...)Because of its form, color and transparency, Beryl has always fascinated people. Emeralds, aquamarines, heliodors and morganites were and are used for the manufacture of jewelry because of their beauty. The common beryl is the main source of the metal beryllium; 80 % of beryllium ore is mined in the United States. The largest known crystal reached a length of 18 m.

This lavishly researched and very comprehensive portrait by the author Peter Seroka relates to history, name origin, causes of color, occurrences , paragenesis and the use of this mineral and its varieties. Subchapters with numerous photographs and drawings deal with the extraordinary beauty of the mineral. Each chapter itself is a separate portrait of a distinctive variety and its characteristics, occurrences, use and history.

(Full text in German)
Be­cause of its form, col­or and trans­paren­cy, Beryl has al­ways fas­ci­nat­ed peo­ple. Emer­alds, aqua­marines, he­lio­dors and mor­ganites were and are used for the man­u­fac­ture of jew­el­ry be­cause of their beau­ty. The com­mon beryl is the main source of the me­t­al beryl­li­um; 80 % of beryl­li­um ore is mined in the ... moreBecause of its form, color and transparency, Beryl has always fascinated people. Emeralds, aquamarines, heliodors and morganites were and are used for the manufacture of jewelry because of their beauty. The common beryl is the main source of the metal beryllium; 80 % of beryllium ore is mined in the United States. The largest known crystal reached a length of 18 m.

This lavishly researched and very comprehensive portrait by the author Peter Seroka relates to history, name origin, causes of color, occurrences , paragenesis and the use of this mineral and its varieties. Subchapters with numerous photographs and drawings deal with the extraordinary beauty of the mineral. Each chapter itself is a separate portrait of a distinctive variety and its characteristics, occurrences, use and history.

(Full text in German)
appetizer image
Bes­tim­mungs­merk­male der Rhom­ben­por­phyre (RP) als Geschie­be­fundeAls Bestimmungsmerkmal fallen zweifarbige Einsprenglinge (blaugrau und rosarot) auf, die allerdings auch in der Variante RP26 vorkommen. Das wichtigste Kriterium, um diese beiden Varianten auseinander halten zu können, sind die in der intrusiven Variante vorhandenen, schmalen Zonierungen, welche die blaugrauen Kristalle dünn umschließen. Generell finden sich 2 Arten von Einsprenglingen in der intrusiven Variante: 1. kleine, zerbrochen wirkende rosarote und 2. größere, blaugraue mit schmaler Zonierung, welche die gleiche Farbe aufweist, wie die der Kleineren Einsprenglinge. ... Ein Beitrag von Jörg-Florian J.
Als Bes­tim­mungs­merk­mal fall­en zwei­far­bige Ein­sprenglinge (blau­grau und rosarot) auf, die allerd­ings auch in der Variante RP26 vorkom­men. Das wichtig­ste Kri­teri­um, um diese bei­den Varian­ten au­sei­nan­der hal­ten zu kön­nen, sind die in der in­tru­siv­en Variante vorhan­de­nen, sch­malen Zonierun­gen, welche die ... moreAls Bestimmungsmerkmal fallen zweifarbige Einsprenglinge (blaugrau und rosarot) auf, die allerdings auch in der Variante RP26 vorkommen. Das wichtigste Kriterium, um diese beiden Varianten auseinander halten zu können, sind die in der intrusiven Variante vorhandenen, schmalen Zonierungen, welche die blaugrauen Kristalle dünn umschließen. Generell finden sich 2 Arten von Einsprenglingen in der intrusiven Variante: 1. kleine, zerbrochen wirkende rosarote und 2. größere, blaugraue mit schmaler Zonierung, welche die gleiche Farbe aufweist, wie die der Kleineren Einsprenglinge. ... Ein Beitrag von Jörg-Florian J.
appetizer image
Ge­ol­o­gisch­es Por­trait über die PyrenäenDie Pyrenäen sind, in geologischen Zeitabschnitten gemessen, ein relativ junges Gebirge, welches sich nördlich und südlich der Grenze Frankreich-Spanien ca. 430 km von Katalonien bis zum Baskenland erstreckt. Das Gebirge ist der norwestliche Zweig des riesigen, ca. 12.000 km langen alpidischen Gebirgssystems. Die Staatsgrenze zwischen Frankreich und Spanien folgt im Wesentlichen dem Gebirgskamm. Mitten in den Pyrenäen liegt auch der Kleinstaat Andorra.

Die von Osten nach Westen verlaufende Pyrenäen-Kette entstand aufgrund der Kontinentalkollision zwischen dem Mikrokontinent Iberia und dem südwestlichen Ausläufer der Eurasischen Platte.

Die Annäherung der beiden Kontinente erfolgte während des Känozoikums im Zusammenhang mit der großen alpidischen Orogenese (Alpen-Himalaya-Orogenese) ab dem Beginn der Oberkreide vor rund 100 Mya und führte im Verlauf des Eozäns/Paläozens zwischen 55 und 25 Millionen Jahren zur Heraushebung des Orogens. Seit diesem Zeitpunkt unterliegt das Gebirge starker Abtragung.

Die Pyrenäen sind kein Gebirge der Superlative wie die Alpen oder der Himalaya, wenngleich es mehr als 200 Gipfel von mehr als 3.000 m Höhe sowie unzählige Gletscher, eindrucksvolle Gletscherkessel und viele tausend Gletscherseen besitzt. Die Flora enthält etwa 4500 Pflanzenarten, von denen 150 endemisch sind. Vor der Besiedelung durch Cro-Magnon-Menschen (Homo sapiens) war das spanische Vorland der Pyrenäen bereits von Neandertalern bewohnt, wie Funde in der Höhle Cova Gran de Santa Linya belegen. Von steinzeitlicher Besiedlung zeugen die Cromlechs der Pyrenäen.

... Ein Beitrag von Peter Seroka
Die Pyrenäen sind, in ge­ol­o­gischen Zeitab­sch­nit­ten gemessen, ein rel­a­tiv junges Ge­birge, welch­es sich nördlich und südlich der Grenze Frankreich-Spanien ca. 430 km von Ka­t­alonien bis zum Basken­land er­streckt. Das Ge­birge ist der nor­west­liche Zweig des rie­si­gen, ca. 12.000 km lan­gen al­pidischen Ge­bir ... moreDie Pyrenäen sind, in geologischen Zeitabschnitten gemessen, ein relativ junges Gebirge, welches sich nördlich und südlich der Grenze Frankreich-Spanien ca. 430 km von Katalonien bis zum Baskenland erstreckt. Das Gebirge ist der norwestliche Zweig des riesigen, ca. 12.000 km langen alpidischen Gebirgssystems. Die Staatsgrenze zwischen Frankreich und Spanien folgt im Wesentlichen dem Gebirgskamm. Mitten in den Pyrenäen liegt auch der Kleinstaat Andorra.

Die von Osten nach Westen verlaufende Pyrenäen-Kette entstand aufgrund der Kontinentalkollision zwischen dem Mikrokontinent Iberia und dem südwestlichen Ausläufer der Eurasischen Platte.

Die Annäherung der beiden Kontinente erfolgte während des Känozoikums im Zusammenhang mit der großen alpidischen Orogenese (Alpen-Himalaya-Orogenese) ab dem Beginn der Oberkreide vor rund 100 Mya und führte im Verlauf des Eozäns/Paläozens zwischen 55 und 25 Millionen Jahren zur Heraushebung des Orogens. Seit diesem Zeitpunkt unterliegt das Gebirge starker Abtragung.

Die Pyrenäen sind kein Gebirge der Superlative wie die Alpen oder der Himalaya, wenngleich es mehr als 200 Gipfel von mehr als 3.000 m Höhe sowie unzählige Gletscher, eindrucksvolle Gletscherkessel und viele tausend Gletscherseen besitzt. Die Flora enthält etwa 4500 Pflanzenarten, von denen 150 endemisch sind. Vor der Besiedelung durch Cro-Magnon-Menschen (Homo sapiens) war das spanische Vorland der Pyrenäen bereits von Neandertalern bewohnt, wie Funde in der Höhle Cova Gran de Santa Linya belegen. Von steinzeitlicher Besiedlung zeugen die Cromlechs der Pyrenäen.

... Ein Beitrag von Peter Seroka
appetizer image
Rosia Mon­ta­na (Veres­pa­tak), Ro­ma­niaThe village and the mine with the same name "Rosia Montana" are located approximately 85 km north of the city of Deva. The mine complex extends over 21.2 square kilometers and is one of the largest gold deposits in Europe. The tunnel system in the underground is several hundred kilometers long and was used until a few years ago. Already in Roman times the tunnels had a length of 145 km.
The vil­lage and the mine with the same name "Rosia Mon­ta­na" are lo­cat­ed ap­prox­i­mate­ly 85 km north of the ci­ty of De­va. The mine com­plex ex­tends over 21.2 square kilome­ters and is one of the largest gold de­posits in Eu­rope. The tun­nel sys­tem in the un­der­ground is sev­er­al hun­dred kilome­ters long and w ... moreThe village and the mine with the same name "Rosia Montana" are located approximately 85 km north of the city of Deva. The mine complex extends over 21.2 square kilometers and is one of the largest gold deposits in Europe. The tunnel system in the underground is several hundred kilometers long and was used until a few years ago. Already in Roman times the tunnels had a length of 145 km.
appetizer image
 
https://www.mineraliengrosshandel.com
Die 63. Rhein-Neckar-Mineralienbörse in Walldorf
https://www.mineralbox.biz
https://www.lithomania.de
https://www.edelsteine-neuburg.de
https://www.mineral-bosse.de