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 10530 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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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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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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1936 er­wirbt die Fir­ma "Sa­line Lud­wigshalle AG", Bad Wimpfen, die Grube Kallmünz­er. Da­raufhin wurde der Fir­men­name ( Be­sitz­er) in "Flußs­patw­erk Sch­warzen­feld GmbH, vorm. An­ton Kallmünz­er" geän­dert. Die Flußs­pat­grube wird von nun an Grube Cä­cilia, teils auch Grube Cä­cilie, ge­nan­nt. An­ton Kallmünz­er b ... more1936 erwirbt die Firma "Saline Ludwigshalle AG", Bad Wimpfen, die Grube Kallmünzer. Daraufhin wurde der Firmenname ( Besitzer) in "Flußspatwerk Schwarzenfeld GmbH, vorm. Anton Kallmünzer" geändert. Die Flußspatgrube wird von nun an Grube Cäcilia, teils auch Grube Cäcilie, genannt. Anton Kallmünzer bleibt Teilhaber und Geschäftsführer.
Schacht Cäcilia II ist mit 86 m Teufe Hauptförderschacht. Der Schacht Marie, ehemals zu Grube Freiung II zugehörig und der Reichhart-Schacht, ehemals Grube Freiung I, werden als Wetterschächte genutzt. Im gleichen Jahr erwirbt die Firma auch das Ausbeuterecht ... Ein Beitrag von Michael Kommer
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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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