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.
 
hausen - Mineraliengrosshandel.com
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Mineralien Kalender
 
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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... In dem Gruben­feld waren vor 1940 mehrere Klein­be­triebe tätig, die die einzel­nen Gänge an völ­lig un­ter­schiedlichen Stellen zuerst in Ta­gröschen und später mit­tels Sch­lepp- (tonn­lägiger Schacht, d.h. im Gang abge­teuft) oder Saiger­schacht aus­ge­beutet hat­ten. An kein­er Stelle hat es allerd­ings, wie ... more... In dem Grubenfeld waren vor 1940 mehrere Kleinbetriebe tätig, die die einzelnen Gänge an völlig unterschiedlichen Stellen zuerst in Tagröschen und später mittels Schlepp- (tonnlägiger Schacht, d.h. im Gang abgeteuft) oder Saigerschacht ausgebeutet hatten. An keiner Stelle hat es allerdings, wie es bei allen anderen Gruben üblich war, eine Konzentration an einem bestimmten Standort gegeben und so kam es mit Hilfe der Reichsregierung zwischen 1940 und 1942 dazu, dass die Grube Hermine ins Leben gerufen wurde. Wenn der II. Weltkrieg nicht ausgebrochen wäre, weil Flußspat dringend für Rüstungszwecke gebraucht wurde, dann hätte es unter Umständen die Grube Hermine gar nicht gegeben und die Gänge wären von Grube Cäcilia und Grube Erika abgebaut worden. ... Ein Beitrag von Michael Kommer
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Min­er­al por­trait gar­netThis portrait mainly deals with the 6 classic garnets, their amazing history, the world’s best known classic and modern localities and deposits and their use as a gems or abrasives. It also deals with the common belief related to the non-existence of blue garnets and its refutation proven by new finds. A separate chapter deals with synthetic garnets. But it also deals with the mix up of definitions, groupings and old and unnecessary terms, which have finally been terminated or brought to a common denominator.

In 2012 the IMA (CNMNC) has defined garnets as members of the Garnet Supergroup, which include all minerals isostructural with garnet regardless of what elements occupy the four atomic sites; i.e. the supergroup includes several chemical classes . Those minerals are closely related to each other and may form a series with each other. Some garnets form intermediary minerals between each member, and may even be intergrown within a single crystal.

With the publication of the new nomenclature of the garnet supergroup, the term “garnet group” does not have its meaning anymore and the intermediate working term “Garnet superstructural group” has been replaced by “Garnet Supergroup”.
There are 32 approved species and 5 “candidate” species waiting on approval. The 32 species are subdivided by their Z-charge into 29 species, which belong to 5 groups and to 3 single representative species.
One of those 5 groups is the “Garnet group”, consisting of the 6 former (classic) garnets Pyrope, Grossular, Spessartine, Almandine, Uvarovite and Andradite plus 8 rarer garnets , as Menzerite-(Y), Eringaite, Goldmanite, Momoiite, Knorringite, Calderite, Majorite and Morimotoite.
This por­trait main­ly deals with the 6 clas­sic gar­nets, their amaz­ing his­to­ry, the world’s best known clas­sic and mod­ern lo­cal­i­ties and de­posits and their use as a gems or abra­sives. It al­so deals with the com­mon be­lief re­lat­ed to the non-ex­is­tence of blue gar­nets and its refu­ta­tion proven by new ... moreThis portrait mainly deals with the 6 classic garnets, their amazing history, the world’s best known classic and modern localities and deposits and their use as a gems or abrasives. It also deals with the common belief related to the non-existence of blue garnets and its refutation proven by new finds. A separate chapter deals with synthetic garnets. But it also deals with the mix up of definitions, groupings and old and unnecessary terms, which have finally been terminated or brought to a common denominator.

In 2012 the IMA (CNMNC) has defined garnets as members of the Garnet Supergroup, which include all minerals isostructural with garnet regardless of what elements occupy the four atomic sites; i.e. the supergroup includes several chemical classes . Those minerals are closely related to each other and may form a series with each other. Some garnets form intermediary minerals between each member, and may even be intergrown within a single crystal.

With the publication of the new nomenclature of the garnet supergroup, the term “garnet group” does not have its meaning anymore and the intermediate working term “Garnet superstructural group” has been replaced by “Garnet Supergroup”.
There are 32 approved species and 5 “candidate” species waiting on approval. The 32 species are subdivided by their Z-charge into 29 species, which belong to 5 groups and to 3 single representative species.
One of those 5 groups is the “Garnet group”, consisting of the 6 former (classic) garnets Pyrope, Grossular, Spessartine, Almandine, Uvarovite and Andradite plus 8 rarer garnets , as Menzerite-(Y), Eringaite, Goldmanite, Momoiite, Knorringite, Calderite, Majorite and Morimotoite.
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Re­port about a ge­o­log­ic - and ge­ol­o­gy of de­posits ex­cur­sion through cen­tral and south­ern Namibia as well as the Na­maqua­land bor­der­ing to the South and parts of the North­ern cape in au­tumn, 2009., Amongst other lo­cal­i­ties in Namibia the au­thor visit­ed the tin de­posit Uis, the ex­plo­ra­tions pro­ject Na ... moreReport about a geologic - and geology of deposits excursion through central and southern Namibia as well as the Namaqualand bordering to the South and parts of the Northern cape in autumn, 2009., Amongst other localities in Namibia the author visited the tin deposit Uis, the explorations project Namib Lead near Swakopmund, as well as the important mines Rosh Pinah and Scorpion Zinc in the south of Namibia. In the Republic South Africa the trip led to the copper mining region of Okiep as well as the lead zinc mines of Aggeneys and, finally, to the Kalahari manganese ore districts of Postmasburg and Kuruman.

(Full text in german)
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Edelsteintage Konstanz
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https://crystalparadise.de/