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.
 
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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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... Schon die Tau­risk­er und insbe­son­dere die Pi­son­ti­er, Be­woh­n­er des ehe­ma­li­gen Mit­tel-Norikum, wussten um die reich­ern Gol­dadern und ver­legten sich auf die Aus­beu­tung dersel­ben so wie auf die Gold­wäscherei in den Flüssen und Bächen. Die Ar­muth des Lan­des machte den Berg­bau zu ein­er ihr­er Haupter­w­er ... more... Schon die Taurisker und insbesondere die Pisontier, Bewohner des ehemaligen Mittel-Norikum, wussten um die reichern Goldadern und verlegten sich auf die Ausbeutung derselben so wie auf die Goldwäscherei in den Flüssen und Bächen. Die Armuth des Landes machte den Bergbau zu einer ihrer Haupterwerbsquellen. Bei dem Umstande, als viele der Erzgänge edel zu Tage ausbeissen, auch oft blos nur aus einer lehmigen goldhaltigen Masse (Besteg) bestanden, die mit den primitivsten Werkzeugen gewonnen werden konnte, war die Bearbeitung leicht. Sowohl in Kärnten als in Salzburg kann man mehrere in Schrammarbeit getriebene Stollen sehen, die mit Sicherheit entweder aus jener Zeitperiode oder der darauffolgenden unter den Römern herrühren. Viele aber liegen jetzt unter dem ... Ein Beitrag von Michael Kommer
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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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This is the most com­pre­hen­sive syn­op­sis re­lat­ed to the his­to­ry, the min­er­al­o­gy, the ex­ploi­ta­tion and the most ac­tu­al eco­nom­ic and po­lit­i­cal re­sumé on rare earth el­e­ments and their min­er­als to be found in the in­ter­net. REE be­long to the most im­por­tant raw ma­te­rials of the 21st cen­tu­ry, which are used ... moreThis is the most comprehensive synopsis related to the history, the mineralogy, the exploitation and the most actual economic and political resumé on rare earth elements and their minerals to be found in the internet. REE belong to the most important raw materials of the 21st century, which are used in a large number of key technologies. However, due to the fact that almost 97% of the world's REE are mined and produced in China, REE have become an ongoing political issue, mainly amongst technology providing countries like the US, Japan and Western Europe.

This portrait tries to explain the characteristics of REE and their role for our modern world. Written and investigated by Peter Seroka. (Article in german)
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Ti­tanit ist ein Min­er­al, welch­es man in Vorkom­men un­ter­schiedlich­er Ge­nese an­trifft. In Granit­peg­matiten kön­nen Kris­talle bis 25 cm groß wer­den; in Al­ka­ligestei­nen bis zu 6 cm. Kris­talle von er­stk­las­siger Qual­ität (rel­a­tiv auch Edel­stein­qual­ität) fin­d­et man je­doch nur in alpino­typen Klüften. Er­st­ma ... moreTitanit ist ein Mineral, welches man in Vorkommen unterschiedlicher Genese antrifft. In Granitpegmatiten können Kristalle bis 25 cm groß werden; in Alkaligesteinen bis zu 6 cm. Kristalle von erstklassiger Qualität (relativ auch Edelsteinqualität) findet man jedoch nur in alpinotypen Klüften. Erstmals gefunden wurde Titanit 1795 in den Hauzenberger Graphitgruben im Bayerischen Wald und beschrieben durch Martin Heinrich KLAPROTH, der das Mineral nach seinem Gehalt an Titan benannte. Soweit nachvollziehbar, führte KLAPROTH die Erz-Analysen im Auftrag eines Bergbauunternehmens durch.
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... As al­ready men­tioned else­where, min­ing in Il­me­nau dates back to the year 1200. In 1216, Count Pop­po v. Hen­ne­berg was en­fe­offed with the Ber­gre­gal by Frie­drich den II. At that time one had dis­cov­ered min­er­alised steep cop­per slate near Ro­da and on the Sturmheide. Pre­sum­ab­ly, in­di­vi­d­u­al min­ers had ... more... As already mentioned elsewhere, mining in Ilmenau dates back to the year 1200. In 1216, Count Poppo v. Henneberg was enfeoffed with the Bergregal by Friedrich den II. At that time one had discovered mineralised steep copper slate near Roda and on the Sturmheide. Presumably, individual miners had been enfeoffed, who extracted copper slate and sandstone in accordance with the mining freedom. This is generally regarded as the beginning of the first main period of Ilmenau mining. The ore was mined in small open pits to a maximum depth of 50m. ... A Contribution of {:10697:}
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