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05. Apr. - Ta­tort Franken – Das stein­erne Grab der Rie­sen­lurche
10. Apr. - Min­er­alien­börse im Lausitz-Cen­ter in Hoy­er­sw­er­da
11. Apr. - Min­er­alien­börse im Lausitz-Cen­ter in Hoy­er­sw­er­da
11. Apr. - 23. Min­er­alien-IN­FO im Ahrn­tal - Südtirol
11. Apr. - Min­er­alien.- und Fos­silien­börse Rosen­heim - Auer Fes­thalle
12. Apr. - 31. Min­er­alien- und Fos­silien­samm­ler­börse Eg­gen­burg / AT
12. Apr. - Min­er­alien­börse Her­born-Merken­bach
17. Apr. - GERA: Bild­vor­trag „Der Ein­fluss Preußens auf den Berg­bau im
19. Apr. - 25. Bay­er­wald-Min­er­alien­börse Bad Kötzt­ing, DE
26. Apr. - 34. Min­er­alien- und Fos­silien­börse Arns­berg-Müschede, DE
09. May - 77. In­ter­na­tio­nale Min­er­alien­börse in Freiberg/Sach­sen
09. May - 50. Min­er­alien- & Fos­silien­börse “MIN­ER­AN­T2026” - Gol­d­en
09. May - 43. Aschaf­fen­burg­er Min­er­alien­börse
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Deutschland/Nordrhein-Westfalen/Arnsberg, Bezirk/Hochsauerlandkreis/Arnsberg/Holzen
 
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Calcit
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05. Apr. - Ta­tort Franken – Das stein­erne Grab der Rie­sen­lurche
10. Apr. - Min­er­alien­börse im Lausitz-Cen­ter in Hoy­er­sw­er­da
11. Apr. - Min­er­alien­börse im Lausitz-Cen­ter in Hoy­er­sw­er­da
11. Apr. - 23. Min­er­alien-IN­FO im Ahrn­tal - Südtirol
11. Apr. - Min­er­alien.- und Fos­silien­börse Rosen­heim - Auer Fes­thalle
12. Apr. - 31. Min­er­alien- und Fos­silien­samm­ler­börse Eg­gen­burg / AT
12. Apr. - Min­er­alien­börse Her­born-Merken­bach
17. Apr. - GERA: Bild­vor­trag „Der Ein­fluss Preußens auf den Berg­bau im
19. Apr. - 25. Bay­er­wald-Min­er­alien­börse Bad Kötzt­ing, DE
26. Apr. - 34. Min­er­alien- und Fos­silien­börse Arns­berg-Müschede, DE
09. May - 77. In­ter­na­tio­nale Min­er­alien­börse in Freiberg/Sach­sen
09. May - 50. Min­er­alien- & Fos­silien­börse “MIN­ER­AN­T2026” - Gol­d­en
09. May - 43. Aschaf­fen­burg­er Min­er­alien­börse
Calender
hausen - Mineraliengrosshandel.com
https://www.mineral-bosse.de
Edelsteintage Konstanz
 
 
 
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 10531 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.
 
Edelsteintage Konstanz
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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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Min­er­al Por­trait CalciteCalcite is one of the most abundant natural minerals. It is found in very different shapes, both compact as limestone as well as sinter in caves and in the crystalline state. But even in our daily life calcite is always present: in some regions it blockes water pipes as "chalk", we build our houses with it, it is in our food chain and without it we could not stand upright.

Calcite is not rare, but the varied mineral on Earth. The variety of forms and variations of the forms of calcite are unmatched in the world of mineralogy. By 2009, more than 800 Calcit forms have been described.
Calcite is one of the most abun­dant na­t­u­ral min­er­als. It is found in very dif­fer­ent shapes, both com­pact as lime­s­tone as well as sin­ter in caves and in the crys­tal­line state. But even in our dai­ly life calcite is al­ways pre­sent: in some re­gions it block­es wa­ter pipes as "chalk", we build our hous­es ... moreCalcite is one of the most abundant natural minerals. It is found in very different shapes, both compact as limestone as well as sinter in caves and in the crystalline state. But even in our daily life calcite is always present: in some regions it blockes water pipes as "chalk", we build our houses with it, it is in our food chain and without it we could not stand upright.

Calcite is not rare, but the varied mineral on Earth. The variety of forms and variations of the forms of calcite are unmatched in the world of mineralogy. By 2009, more than 800 Calcit forms have been described.
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Ge­o­log­ic Por­trait - Weather­ing and Ero­sionWeathering is a continous process by which rocks are broken down and decomposed by the action of humidity (rain), wind, temperature changes, chemical agents, bacteria and plants. Being an integral part of the rocks cycle, weathering is the initial stage towards denudation, which results in general lowering of the land surface. An essential feature is that it affects rocks in situ; no transportation is involved. This is the factor which dsitinguishes weathering from erosion. The two main types of weathering are mechanical and chemical. Climate plays a leading role in weathering, whereas chemical weathering is almost absent in arid regions. Effecrtive freeze-thaw cycles are confined to cold temperate and permafrost climates.

Erosion is part of the process of denudation which involves the wearing away of land surface by mechanical action of transported debris. Main cycles of erosion are glaciers, wind erosion, marine erosion.
Weather­ing is a conti­nous pro­cess by which rocks are bro­ken down and de­com­posed by the ac­tion of hu­mid­i­ty (rain), wind, tem­per­a­ture changes, chem­i­cal agents, bac­te­ria and plants. Be­ing an in­te­gral part of the rocks cy­cle, weather­ing is the ini­tial stage to­wards de­nu­da­tion, which re­sults in gen­er­al l ... moreWeathering is a continous process by which rocks are broken down and decomposed by the action of humidity (rain), wind, temperature changes, chemical agents, bacteria and plants. Being an integral part of the rocks cycle, weathering is the initial stage towards denudation, which results in general lowering of the land surface. An essential feature is that it affects rocks in situ; no transportation is involved. This is the factor which dsitinguishes weathering from erosion. The two main types of weathering are mechanical and chemical. Climate plays a leading role in weathering, whereas chemical weathering is almost absent in arid regions. Effecrtive freeze-thaw cycles are confined to cold temperate and permafrost climates.

Erosion is part of the process of denudation which involves the wearing away of land surface by mechanical action of transported debris. Main cycles of erosion are glaciers, wind erosion, marine erosion.
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Al­ten­berg (Vieille Mon­tagne)... Die Nutzung der Zinkerze der Lagerstätte Altenberg ist seit 1344 belegt. Dort wurde Galmei abgebaut, welches schon vor der Erfindung der Direktverhüttung von Zinkerzen die Messingherstellung ermöglichte. Die hier betrachtete Lagerstätte Altenberg kann allerdings, im Gegensatz zur benachbarten Lagerstätte Gessenich (römisch: Grasciniacum) im Stolberger Raum, nicht bis in die Römerzeit zurück verfolgt werden. Auf den aktuellen topografischen Karten (z.B. Top25 Deutschland, Blatt 5202 Aachen) ist der Altenberg nicht mehr zu finden... ein Beitrag von Norbert Kirchhoff
... Die Nutzung der Zink­erze der Lager­stätte Al­ten­berg ist seit 1344 belegt. Dort wurde Galmei abge­baut, welch­es schon vor der Erfin­d­ung der Di­rektver­hüt­tung von Zink­erzen die Mess­ingher­stel­lung er­möglichte. Die hi­er be­trachtete Lager­stätte Al­ten­berg kann allerd­ings, im Ge­gen­satz zur be­nach­barten La ... more... Die Nutzung der Zinkerze der Lagerstätte Altenberg ist seit 1344 belegt. Dort wurde Galmei abgebaut, welches schon vor der Erfindung der Direktverhüttung von Zinkerzen die Messingherstellung ermöglichte. Die hier betrachtete Lagerstätte Altenberg kann allerdings, im Gegensatz zur benachbarten Lagerstätte Gessenich (römisch: Grasciniacum) im Stolberger Raum, nicht bis in die Römerzeit zurück verfolgt werden. Auf den aktuellen topografischen Karten (z.B. Top25 Deutschland, Blatt 5202 Aachen) ist der Altenberg nicht mehr zu finden... ein Beitrag von Norbert Kirchhoff
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Schacht 371Der Schacht 371 der ehemaligen SDAG Wismut befindet sich östlich der Straße zwischen Niederschlema und Hartenstein an dem großen Doppel-Bogen der Zwickauer Mulde. In der Nähe befindet sich das bekannte Ausflugsziel "Prinzenhöhle". Das Schachtgelände einschließlich der mächtigen Halden erstreckt sich vom Ostufer der Zwickauer Mulde zum einen über das fast vollständig verfüllte Kohlungsbachtal (Teilhalde 371/I) und zum anderen bis hin an die Felskuppen der Hohen Warte in ... ein Beitrag von Thomas Uhlig
Der Schacht 371 der ehe­ma­li­gen SDAG Wis­mut befin­d­et sich östlich der Straße zwischen Nied­er­sch­le­ma und Harten­stein an dem großen Dop­pel-Bo­gen der Zwick­auer Mulde. In der Nähe befin­d­et sich das bekan­nte Aus­flugsziel "Prinzen­höh­le". Das Schacht­gelände ein­sch­ließlich der mächti­gen Hal­den er­streckt sich ... moreDer Schacht 371 der ehemaligen SDAG Wismut befindet sich östlich der Straße zwischen Niederschlema und Hartenstein an dem großen Doppel-Bogen der Zwickauer Mulde. In der Nähe befindet sich das bekannte Ausflugsziel "Prinzenhöhle". Das Schachtgelände einschließlich der mächtigen Halden erstreckt sich vom Ostufer der Zwickauer Mulde zum einen über das fast vollständig verfüllte Kohlungsbachtal (Teilhalde 371/I) und zum anderen bis hin an die Felskuppen der Hohen Warte in ... ein Beitrag von Thomas Uhlig
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Min­er­al Days in Mu­nich 2012 or „The Mu­nich Show“For the 49th year once again the Munich Mineral Show was held. A few years ago under the old leadership the motto almost entirely stood under the theme of minerals and fossils. This year not only the name seems to change away from the "Munich Mineral Show" changing to "The Munich Show". The new exhibition management, led by the young Mr. Keilmann seems not quite knowing where to go or has something bigger in mind. One can imagine something in "Munich Mineral Days", it is difficult in the name "The Munich Show". The new show management seems to leave the common way, to keep all options open with a new name. - A comment and fair report written in german language by Stefan Schorn
For the 49th year once again the Mu­nich Min­er­al Show was held. A few years ago un­der the old lead­er­ship the mot­to al­most en­tire­ly stood un­der the theme of min­er­als and fos­sils. This year not on­ly the name seems to change away from the "Mu­nich Min­er­al Show" chang­ing to "The Mu­nich Show". The new ex­hi ... moreFor the 49th year once again the Munich Mineral Show was held. A few years ago under the old leadership the motto almost entirely stood under the theme of minerals and fossils. This year not only the name seems to change away from the "Munich Mineral Show" changing to "The Munich Show". The new exhibition management, led by the young Mr. Keilmann seems not quite knowing where to go or has something bigger in mind. One can imagine something in "Munich Mineral Days", it is difficult in the name "The Munich Show". The new show management seems to leave the common way, to keep all options open with a new name. - A comment and fair report written in german language by Stefan Schorn
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"Ober­fränkisch­es Re­vi­er" a min­ing por­traitThe mining in the Franconian Forest has produced a lot of pits in the area and counts to the oldest mining areas in Germany. Indeed, one searches in the World Wide web in vain according to the information of which are documented by photos or maps. This comprehensive contribution gives you a wide view into this extended mininig area.

Researched and written from Michael Kommer (in german language)
The min­ing in the Fran­co­nian For­est has pro­duced a lot of pits in the area and counts to the old­est min­ing ar­eas in Ger­many. In­deed, one search­es in the World Wide web in vain ac­cord­ing to the in­for­ma­tion of which are doc­u­ment­ed by pho­tos or maps. This com­pre­hen­sive con­tri­bu­tion gives you a wide vie ... moreThe mining in the Franconian Forest has produced a lot of pits in the area and counts to the oldest mining areas in Germany. Indeed, one searches in the World Wide web in vain according to the information of which are documented by photos or maps. This comprehensive contribution gives you a wide view into this extended mininig area.

Researched and written from Michael Kommer (in german language)
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