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.
 
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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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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)
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Ear­ly be­fore Py­ro­mor­phite got its name, Py­ro­mor­phite was known as Grün-, Braun-, Bunt­bleierz or Po­lychrom. Best spec­i­men are known from Freiberg, Clausthal, Dorn­bach and Pri­bram adorned the former Min­er­als cabi­nets of Jo­hann Richter, Karl Pabst von Ohain, Chris­tian Lud­wig Stieglitz, Car­o­line Louise ... moreEarly before Pyromorphite got its name, Pyromorphite was known as Grün-, Braun-, Buntbleierz or Polychrom. Best specimen are known from Freiberg, Clausthal, Dornbach and Pribram adorned the former Minerals cabinets of Johann Richter, Karl Pabst von Ohain, Christian Ludwig Stieglitz, Caroline Louise of Baden, Johann Wolfgang von Goethe, Abraham Gottlob Werner, Ignaz von Born, Sigmund Zois and other prominent collectors of the 18th to early 19th century. The first chemical analysis undertook M. H. Klaproth in 1784; the name Pyromorphit, from the Greek "pyro" for fire and "Morpho" for form, was of J.F.L. Hausmann 1813 awarded. The reason for this peculiar ... An article by Peter Seroka in german language
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Ei­nen er­sten wichti­gen Schritt zur Ent­ste­hung des Variszischen Ge­birges stellte bere­its der Zer­fall des Su­perkonti­nents Ro­di­nia in mehrere Großkonti­nente im späten Neo­pro­tero­zoikum vor et­wa 750 Ma dar. Paläo­geo­graphische Un­ter­suchun­gen lassen da­rauf sch­ließen, dass sich im Ver­lauf der fol­gen­den 100 ... moreEinen ersten wichtigen Schritt zur Entstehung des Variszischen Gebirges stellte bereits der Zerfall des Superkontinents Rodinia in mehrere Großkontinente im späten Neoproterozoikum vor etwa 750 Ma dar. Paläogeographische Untersuchungen lassen darauf schließen, dass sich im Verlauf der folgenden 100 Ma zuerst Laurentia, Baltica (Osteuropäischer Kraton) und Sibirien, später auch eine Reihe kleinerer Terrane wie Avalonia und Armorica von Gondwana lösten und nach Norden drifteten. Zwischen diesen Kontinentplatten kam es zur Entstehung großer Ozeanbecken: dem Iapetus zwischen Laurentia und Baltica, dem Tornquist-Ozean zwischen Baltica und Avalonia und dem Rheischen Ozean. Auch Armorica war wahrscheinlich durch einen schmalen Ozean von Gondwana abgetrennt.
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Ara­g­onite is a cal­ci­um car­bo­nate, chem­i­cal­ly iden­ti­cal with calcite. The min­er­al calcite, how­ev­er, dif­fers from Ara­g­onite due to its in­ter­nal crys­tal struc­ture. While the crys­tal sys­tem of calcite is trig­o­n­al, the sys­tem of ara­g­onite is rhom­bic. Dense mass­es of small ara­g­onite crys­tals are dif­fi­cul ... moreAragonite is a calcium carbonate, chemically identical with calcite. The mineral calcite, however, differs from Aragonite due to its internal crystal structure. While the crystal system of calcite is trigonal, the system of aragonite is rhombic. Dense masses of small aragonite crystals are difficult to distinguish from calcite, but they are larger, they show a distinct habit.

A lot of chapters in this portrait will give you much more details about this interesting mineral. Written and investigated by Peter Seroka. (Article in german)
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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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Als Min­er­alien­samm­ler er­wartet man das Pri­mat der Na­tur. Wo sie schon war, muss der Men­sch erst hin. Über­raschend ist da­her die Geschichte des Aven­turins – bei dem ein Arte­fakt das Eponym für Er­schei­n­un­gen im Min­er­al­reich ist. Der Name Aven­turin taucht näm­lich zum er­sten Mal bei der Schöp­fung eines ... moreAls Mineraliensammler erwartet man das Primat der Natur. Wo sie schon war, muss der Mensch erst hin. Überraschend ist daher die Geschichte des Aventurins – bei dem ein Artefakt das Eponym für Erscheinungen im Mineralreich ist. Der Name Aventurin taucht nämlich zum ersten Mal bei der Schöpfung eines besonderen Glases durch Menschenhand auf.

Die kupferhaltigen Gläser „Rubinglas“, „Goldstein“ und „Purpurin“ bilden ein strukturelles Kontinuum. Die Größe der im Glas enthaltenen Kupferkolloide erzeugt die unterschiedlichen Varietäten: im Rubinglas besteht das Kupfer aus transparenten Nanopartikeln, im Purpurin stellt das Kupfer opake mikroskopische Partikel dar und im „Goldstein“ bildet das Kupfer sichtbare Kristalle. Alle drei Varianten waren im Altertum bekannt: Frühe rote, kupferhaltige Gläser stammen aus dem Industal und besitzen ein Alter von viertausend Jahren und eine Vielzahl von Funden aus Pompeji belegen die Erzeugung und Verwendung durch die Römer. Sogar Plinius der Ältere erwähnt diese Gläser in seiner Historia Naturalis als „Haematinum“. Ein Beitrag von Klaus Schäfer
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