de en
 

Welcome guest

Login
Register
Imprint
Protection of privacy
Message
Our team
Help and how it works
https://fossilsworldwide.de/
https://www.mineral-bosse.de
hausen - Mineraliengrosshandel.com
Edelsteintage Konstanz
https://www.mineralbox.biz
https://www.chiemgauer-mineralien-fossiliensammler.de/
639 Gäste, 6 Mitglieder (2 Versteckte)
FF, smaragd123, FrankD, Stein46
Derzeit sind keine Benutzer im Chat
https://vfmg.de/der-aufschluss/
Mineralien Kalender
https://www.edelsteine-neuburg.de
13. May - Mi­cro­mount-Um­lauf: Min­er­alien aus Pak­is­tan
17. May - Gera, Mu­se­um für Na­turkunde: Ausstel­lungseröff­nung
21. May - 29. In­ter­na­tio­nale Jahres­ta­gung Geo­Top der Fach­sek­tion Geo­to
06. June - GERA: „Min­er­alien­tr­eff im Ju­ni“
07. June - 4. Fest der edlen Steine im Rit­tergut Treb­sen/Sach­sen
13. June - Min­er­alien­börse in Knit­telfeld
14. June - Min­er­alien­börse im Fin­d­lings­park Nocht­en
21. June - Min­er­alien­börse
https://crystalparadise.de/
https://www.juwelo.de
https://www.lithomania.de
Deutschland/Sachsen/Erzgebirgskreis/Aue-Bad Schlema, Große Kreisstadt/Lagerstätte Schlema-Alberoda/Schacht 12
 
Image of the day
Fluorit
© Schluchti
https://vfmg.de/der-aufschluss/
Mineralien Kalender
https://www.edelsteine-neuburg.de
13. May - Mi­cro­mount-Um­lauf: Min­er­alien aus Pak­is­tan
17. May - Gera, Mu­se­um für Na­turkunde: Ausstel­lungseröff­nung
21. May - 29. In­ter­na­tio­nale Jahres­ta­gung Geo­Top der Fach­sek­tion Geo­to
06. June - GERA: „Min­er­alien­tr­eff im Ju­ni“
07. June - 4. Fest der edlen Steine im Rit­tergut Treb­sen/Sach­sen
13. June - Min­er­alien­börse in Knit­telfeld
14. June - Min­er­alien­börse im Fin­d­lings­park Nocht­en
21. June - Min­er­alien­börse
Calender
https://crystalparadise.de/
https://www.juwelo.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 10586 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.
 
hausen - Mineraliengrosshandel.com
https://www.lithomania.de
https://www.juwelo.de
https://www.chiemgauer-mineralien-fossiliensammler.de/
https://www.mineral-bosse.de
https://fossilsworldwide.de/
 
De­for­mierte Kris­talleEs gibt nirgendwo im Universum einen perfekten Kristall, denn jeder Kristall hat eine Oberfläche und für die Atome auf der Oberfläche ist die Umgebung anders als für Atome im Volumen. Die Oberfläche ist somit ein Defekt. Reale Kristalle sind damit also Kristalle, die Defekte enthalten.

Eine einfache Definition für Defekte in Kristallen ist die Betrachtung der Umgebung der Atome im Kristall. Falls die unmittelbare Umgebung - streng genommen im zeitlichen Mittel, da die Atome im Kristall wegen der Temperatur um ihre Position wackeln - um ein beliebig herausgegriffenes Atom anders ist als die Umgebung eines Referenzatom in einem perfekten Teil des Kristalls, ist ein Defekt Ursache für diese Änderung. Für ein Atom auf der Oberfläche eines Kristalls ist diese Bedingung zweifellos erfüllt, da die eine Hälfte des Raumes keine Atome des Kristalls hat. Es gibt also prinzipiell keine perfekten Kristalle.
Es gibt nir­gend­wo im Uni­ver­sum ei­nen per­fek­ten Kris­tall, denn jed­er Kris­tall hat eine Ober­fläche und für die Atome auf der Ober­fläche ist die Umge­bung an­ders als für Atome im Vol­u­men. Die Ober­fläche ist somit ein De­fekt. Reale Kris­talle sind damit al­so Kris­talle, die De­fekte en­thal­ten.

Eine ein­fa ... moreEs gibt nirgendwo im Universum einen perfekten Kristall, denn jeder Kristall hat eine Oberfläche und für die Atome auf der Oberfläche ist die Umgebung anders als für Atome im Volumen. Die Oberfläche ist somit ein Defekt. Reale Kristalle sind damit also Kristalle, die Defekte enthalten.

Eine einfache Definition für Defekte in Kristallen ist die Betrachtung der Umgebung der Atome im Kristall. Falls die unmittelbare Umgebung - streng genommen im zeitlichen Mittel, da die Atome im Kristall wegen der Temperatur um ihre Position wackeln - um ein beliebig herausgegriffenes Atom anders ist als die Umgebung eines Referenzatom in einem perfekten Teil des Kristalls, ist ein Defekt Ursache für diese Änderung. Für ein Atom auf der Oberfläche eines Kristalls ist diese Bedingung zweifellos erfüllt, da die eine Hälfte des Raumes keine Atome des Kristalls hat. Es gibt also prinzipiell keine perfekten Kristalle.
appetizer image
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
The Mu­nich Show 2025The Mineralientage München 2025 – The Munich Show once again showcased a fascinating variety of minerals, fossils, and jewelry. Although visitor numbers appeared slightly lower than last year, the fair remained vibrant and diverse. Highlights included the collector displays and the special exhibition on natural resources, while the fossil section was somewhat smaller.
Some visitors expressed a wish for more seating areas, opportunities for exchange, and more eye-catching advertising, yet overall the event left a very positive impression and remains a must-visit for collectors and families alike.
The Min­er­alien­t­age München 2025 – The Mu­nich Show once again show­cased a fas­ci­nat­ing va­ri­e­ty of min­er­als, fos­sils, and jew­el­ry. Al­though vis­i­tor num­bers ap­peared slight­ly low­er than last year, the fair re­mained vi­brant and di­verse. High­lights in­clud­ed the col­lec­tor dis­plays and the spe­cial ex­hi­bi­tio ... moreThe Mineralientage München 2025 – The Munich Show once again showcased a fascinating variety of minerals, fossils, and jewelry. Although visitor numbers appeared slightly lower than last year, the fair remained vibrant and diverse. Highlights included the collector displays and the special exhibition on natural resources, while the fossil section was somewhat smaller.
Some visitors expressed a wish for more seating areas, opportunities for exchange, and more eye-catching advertising, yet overall the event left a very positive impression and remains a must-visit for collectors and families alike.
appetizer image
Sainte-Marie-aux-Mines 2015 - Fair vis­itWho knows Tucson with its many satellite events, has already a good taste of the Sainte-Marie-aux-Mines show. Unlike in Munich where you find the stands clear and concentrated in halls, the organizers use single fenced-off parts of the city to place the stands on the streets. Public buildings such as swimming pool, school and theater are transformed into smaller exhibition halls... A small showreport by Stefan Schorn (in german)
Who knows Tuc­son with its many satel­lite events, has al­ready a good taste of the Sainte-Marie-aux-Mines show. Un­like in Mu­nich where you find the stands clear and con­cen­trat­ed in halls, the or­ganiz­ers use sin­gle fenced-off parts of the ci­ty to place the stands on the streets. Public build­ings such ... moreWho knows Tucson with its many satellite events, has already a good taste of the Sainte-Marie-aux-Mines show. Unlike in Munich where you find the stands clear and concentrated in halls, the organizers use single fenced-off parts of the city to place the stands on the streets. Public buildings such as swimming pool, school and theater are transformed into smaller exhibition halls... A small showreport by Stefan Schorn (in german)
appetizer image
Al­ten­berg Tin MineThe Altenberg tin mine is well known for its huge surface break left by the mining activities. Among mineral collectors the mine is famous as well for its unique Pycnite deposit, a variety of topaz occurring in massive columnar aggregates up to a length of 30 cm.

The mining started in 1440 and continued, with several ups and downs and some total shut-down periods, until 1991. The mining activities aimed for a plutonic granite body (350 to 400 metre in diameter and hydrothermally mineralized mainly with cassiterite and smaller amounts of wolframite, molybdenite, arsenopyrite, bismuth and others) and managed to extract a total sum of 37 million tons of ore. The huge surface break, called "The Altenberger Pinge", is the result of several roof collapses caused by excessive ore excavation and later on the continued drawing of caved material from the bottom of the fracture zone.

Collectible minerals were rare and small, so the Altenberg tin mine became never as famous as the Freiberg or Ehrenfriedersdorf districts, but its unique geology and mining technology made it quite interesting and worth a closer look.

(Full text in german)
The Al­ten­berg tin mine is well known for its huge sur­face break left by the min­ing ac­tiv­i­ties. Among min­er­al col­lec­tors the mine is fa­mous as well for its unique Py­c­nite de­posit, a va­ri­e­ty of to­paz oc­cur­ring in mas­sive colum­nar ag­gre­gates up to a length of 30 cm.

The min­ing start­ed in 1440 and c ... moreThe Altenberg tin mine is well known for its huge surface break left by the mining activities. Among mineral collectors the mine is famous as well for its unique Pycnite deposit, a variety of topaz occurring in massive columnar aggregates up to a length of 30 cm.

The mining started in 1440 and continued, with several ups and downs and some total shut-down periods, until 1991. The mining activities aimed for a plutonic granite body (350 to 400 metre in diameter and hydrothermally mineralized mainly with cassiterite and smaller amounts of wolframite, molybdenite, arsenopyrite, bismuth and others) and managed to extract a total sum of 37 million tons of ore. The huge surface break, called "The Altenberger Pinge", is the result of several roof collapses caused by excessive ore excavation and later on the continued drawing of caved material from the bottom of the fracture zone.

Collectible minerals were rare and small, so the Altenberg tin mine became never as famous as the Freiberg or Ehrenfriedersdorf districts, but its unique geology and mining technology made it quite interesting and worth a closer look.

(Full text in german)
appetizer image
Sil­ver - min­er­al­o­gy, min­ing and his­to­rySilver and silver minerals are amongst the most desirabe objects since the beginning of mineral collecting. Silver wires and curls from Kongsberg and Freiberg are the coronation of each mineral collection. Beautiful pyrargyrites and proustites enhance each collector's heatbeat.

However, silver is not only the essence of high-end collecting but has contributed essentially to the history of mankind. Uncountable remain the millions of greek and phenician slaves, middle age european miners and millions of indios who have left their lives for silver.

Silver is one of the seven metals known since thousands of years, already been mentioned in the bible. Mountains of slag in Asia Minor, Arabia and on the agaen islands prove technologies to produce silver from lead ore; knowledges people had been acquainted with since at least 4.000 year B.C. Since the antiquity silver had been used to make finery and ornaments, however, most of this metal was used to stamp coins. The monetary system of many countries was based on silver; the one, who owned silver, was able to finance wars. One of the main pillars of power of Athens, Rome, the Phenicians, the church, the kings and queens of Castilia, the Austrian house of Habsburg and, last not least, of the Americans had been their control over the richest silver mines and the wars, which they made by paying their soldiery with silver coins.
Sil­ver and sil­ver min­er­als are amongst the most de­sir­abe ob­jects since the be­gin­n­ing of min­er­al col­lect­ing. Sil­ver wires and curls from Kongs­berg and Freiberg are the coro­na­tion of each min­er­al col­lec­tion. Beau­ti­ful pyrar­gyrites and proustites en­hance each col­lec­tor's heat­beat.

How­ev­er, sil­ver is ... moreSilver and silver minerals are amongst the most desirabe objects since the beginning of mineral collecting. Silver wires and curls from Kongsberg and Freiberg are the coronation of each mineral collection. Beautiful pyrargyrites and proustites enhance each collector's heatbeat.

However, silver is not only the essence of high-end collecting but has contributed essentially to the history of mankind. Uncountable remain the millions of greek and phenician slaves, middle age european miners and millions of indios who have left their lives for silver.

Silver is one of the seven metals known since thousands of years, already been mentioned in the bible. Mountains of slag in Asia Minor, Arabia and on the agaen islands prove technologies to produce silver from lead ore; knowledges people had been acquainted with since at least 4.000 year B.C. Since the antiquity silver had been used to make finery and ornaments, however, most of this metal was used to stamp coins. The monetary system of many countries was based on silver; the one, who owned silver, was able to finance wars. One of the main pillars of power of Athens, Rome, the Phenicians, the church, the kings and queens of Castilia, the Austrian house of Habsburg and, last not least, of the Americans had been their control over the richest silver mines and the wars, which they made by paying their soldiery with silver coins.
appetizer image
Min­er­al por­trait Baryt (in ger­man)In the late Middle Ages massive amount of Baryt which phosphoresced when it was gently heated, were discovered in Italy. This stone was named after its place of discovery "Pietra fosforica di Bologna" (phosphorescent Bologna stone) and was of great interest to alchemists. Although the name baryte has been assigned centuries later, it may be assumed that the Bologna stone is the first description in the literature. A portrait about this famous mineral by Peter Seroka.
In the late Mid­dle Ages mas­sive amount of Baryt which phos­phoresced when it was gent­ly heat­ed, were dis­cov­ered in Ita­ly. This stone was named af­ter its place of dis­cov­ery "Pi­e­tra fos­for­i­ca di Bolog­na" (phos­phores­cent Bolog­na stone) and was of great in­ter­est to al­chemists. Al­though the name baryte ha ... moreIn the late Middle Ages massive amount of Baryt which phosphoresced when it was gently heated, were discovered in Italy. This stone was named after its place of discovery "Pietra fosforica di Bologna" (phosphorescent Bologna stone) and was of great interest to alchemists. Although the name baryte has been assigned centuries later, it may be assumed that the Bologna stone is the first description in the literature. A portrait about this famous mineral by Peter Seroka.
appetizer image
 
https://crystalparadise.de/
Mineralien Kalender
https://vfmg.de/der-aufschluss/
Edelsteintage Konstanz
https://www.edelsteine-neuburg.de
https://www.mineralbox.biz