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 10532 members. Every month hundreds of thousands of visitors use our website as an information source.
 
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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.
 
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... Among the most spec­tac­u­lar finds are the fan­tas­tic light blue calcites from the Ju­lia mine in Bil­bao, which en­rap­tured col­lec­tors' hearts to about the mid-1970s. At about the same time the zinc mine Las Man­fo­ras at Ali­va sup­plied ex­cel­lent, highl lus­trous Calcites, of­ten as­so­ci­at­ed with the worl ... more... Among the most spectacular finds are the fantastic light blue calcites from the Julia mine in Bilbao, which enraptured collectors' hearts to about the mid-1970s. At about the same time the zinc mine Las Manforas at Aliva supplied excellent, highl lustrous Calcites, often associated with the world's best red Sphalerites. ...

Amonsgt the forms of calcite the pinacoid is unique as it consists of exactly two parallel and oriented perpendicular to the c-axis surfaces. All other Calcite forms have either six or twelve areas. The pinacoid is an open form, with which it can not really include space; so the pinacoid must accompany other forms on the calcite crystal ...

A mineral portrait written by Peter Seroka with contributions from Ingo Löffler, Edgar Müller, Rainer Albert, William Waltermann (written in German)
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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.
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... Für die hi­er vorgestellte Un­ter­suchung wur­den Spek­tren von Urano­phan, Sk­lo­dowsk­it und Urano­circ­it aus der Lit­er­a­tur herange­zo­gen. Bei den un­ter­sucht­en Min­er­alien wurde näm­lich fest­gestellt, dass auf dem gleichen Stück auftre­tende, an­dere Uranyl-Min­er­alien, die Mes­sung ver­fälschen kön­nen, wenn de ... more... Für die hier vorgestellte Untersuchung wurden Spektren von Uranophan, Sklodowskit und Uranocircit aus der Literatur herangezogen. Bei den untersuchten Mineralien wurde nämlich festgestellt, dass auf dem gleichen Stück auftretende, andere Uranyl-Mineralien, die Messung verfälschen können, wenn deren Lumineszenz nicht räumlich sicher abgeblockt werden kann. Beispielsweise beeinflusste in einer ersten Messung die vergleichsweise starke Lumineszenz von Uranocircit die Messung an einer Uranophan-Probe aus Menzenschwand. Aus diesem Grund ist es sinnvoll, die Spektren weiterer potentiell auftretender Mineralien wie Uranocircit mit in die Untersuchung aufzunehmen, um bei der Bestimmung der Mineralien solche Einflüsse aufspüren zu können... Ein Beitrag von Markus Noller und Martin Stark
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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)
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Cop­per was one of the first me­t­als ev­er ex­tract­ed and used by hu­mans, and it has made vi­tal con­tri­bu­tions to sus­tain­ing and im­prov­ing so­ci­e­ty since the dawn of civ­i­l­iza­tion.
The me­t­al and its al­loys have been used for thou­sands of years. Cop­per was first used in coins and or­na­ments start­ing about ... moreCopper was one of the first metals ever extracted and used by humans, and it has made vital contributions to sustaining and improving society since the dawn of civilization.
The metal and its alloys have been used for thousands of years. Copper was first used in coins and ornaments starting about 8000 B.C., and at about 5500 B.C., copper tools helped civilization emerge from the Stone Age. In the Roman era, copper was principally mined on Cyprus, hence the origin of the name of the metal as сyprium (metal of Cyprus), later shortened to сuprum.

The discovery that copper alloyed with tin produces bronze marked the beginning of the Bronze Age at about 3000 B.C.
Copper is easily stretched, molded, and shaped; is resistant to corrosion; and conducts heat and electricity efficiently. As a result, copper was important to early humans and continues to be a material of choice for a variety of domestic, industrial, and high-technology applications today.

Its compounds are commonly encountered as copper(II) salts, which often impart blue or green colors to minerals such as azurite and malachite and have been widely used historically as pigments. ... a contribution by Peter Seroka
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... Konkre­tio­nen wur­den in den ver­gan­ge­nen Jahrhun­derten oft als ge­ol­o­gische Ku­riositäten be­trachtet. Auf­grund der Vielzahl ungewöhn­lich­er For­men, Größen und Zusam­menset­zun­gen wur­den sie als Di­nosau­ri­er-Ei­er, Ti­er- oder Pflanzen­fos­silien (so­gen. Pseud­o­fos­silien), ex­trater­re­strisch­er Ab­fall oder selb ... more... Konkretionen wurden in den vergangenen Jahrhunderten oft als geologische Kuriositäten betrachtet. Aufgrund der Vielzahl ungewöhnlicher Formen, Größen und Zusammensetzungen wurden sie als Dinosaurier-Eier, Tier- oder Pflanzenfossilien (sogen. Pseudofossilien), extraterrestrischer Abfall oder selbst als vom Menschen erzeugte Artefakte interpretiert. Obwohl für all diese Fehlinterpretationen heute nurmehr ein Lächeln übrigblieb, gibt es immer noch Falschbezeichnungen, resp. unterschiedliche Begriffsdefinitionen, selbst (oder meist) in der geo-wissenschaftlichen Literatur. So werden nicht selten Knollen als Konkretionen ... Ein Beitrag von Peter Seroka
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... durch Min­er­alien­samm­ler und son­stige In­for­ma­tion­squellen ist im­mer wied­er von einem Ver­bund­berg­w­erk Marien­schacht/Jo­han­nesschacht die Rede, Min­er­al­stufen wer­den ent­sprechend so ange­boten oder sind auch so beschriftet, aber ei­nen Ver­bund hat es zwischen der Grube Marien­schacht und der Grube Jo­han ... more... durch Mineraliensammler und sonstige Informationsquellen ist immer wieder von einem Verbundbergwerk Marienschacht/Johannesschacht die Rede, Mineralstufen werden entsprechend so angeboten oder sind auch so beschriftet, aber einen Verbund hat es zwischen der Grube Marienschacht und der Grube Johannesschacht nicht gegeben, denn von einem Verbund wird nur dann gesprochen, wenn zwei noch tätige Bergwerke miteinander verbunden werden und das war hier nicht der Fall, weil die Grube Johannesschacht bereits stillgelegt war und die Tagesanlagen abgerissen wurden. Eine Umfahrung des Baufeldes der Grube Johannesschacht fand deshalb statt, weil sich die Grundstücke und somit auch das untertägige Grubenfeld der Grube Johannesschacht bereits im ...
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