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hausen - Mineraliengrosshandel.com
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Schorsch, Günter Blaß, stoanklopfer, heavy007, Wetterstoa, FrankD
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Mineralien Kalender
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17. May - Gera, Mu­se­um für Na­turkunde: Ausstel­lungseröff­nung
21. May - 29. In­ter­na­tio­nale Jahres­ta­gung Geo­Top der Fach­sek­tion Geo­to
03. June - Min­er­alien- Hausmesse Wech­sel­burg
06. June - GERA: „Min­er­alien­tr­eff im Ju­ni“
07. June - 4. Fest der edlen Steine im Rit­tergut Treb­sen/Sach­sen
13. June - Min­er­alien­börse in Knit­telfeld
14. June - Min­er­alien­börse im Fin­d­lings­park Nocht­en
21. June - Min­er­alien­börse
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Edelsteintage Konstanz
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China/Hunan, Provinz/Chenzhou, Präfektur/Yizhang, Kreis/Yaogangxian Mine
 
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Chalkopyrit
© Philip Blümner
Mineralien Kalender
https://www.chiemgauer-mineralien-fossiliensammler.de/
https://www.lithomania.de
17. May - Gera, Mu­se­um für Na­turkunde: Ausstel­lungseröff­nung
21. May - 29. In­ter­na­tio­nale Jahres­ta­gung Geo­Top der Fach­sek­tion Geo­to
03. June - Min­er­alien- Hausmesse Wech­sel­burg
06. June - GERA: „Min­er­alien­tr­eff im Ju­ni“
07. June - 4. Fest der edlen Steine im Rit­tergut Treb­sen/Sach­sen
13. June - Min­er­alien­börse in Knit­telfeld
14. June - Min­er­alien­börse im Fin­d­lings­park Nocht­en
21. June - Min­er­alien­börse
Calender
https://crystalparadise.de/
Edelsteintage Konstanz
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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 10587 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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https://vfmg.de/der-aufschluss/
Mineralien Kalender
https://www.juwelo.de
hausen - Mineraliengrosshandel.com
https://fossilsworldwide.de/
 
Stone tum­bling - Our ex­pe­ri­encesWe do not thumble stones to get smooth and even things that look like the tumbled stones in the esoteric shops, but to discover the secret of the stone. We have thumbled stones in the spirator for years and have documented our experiences with stones, machinery, abrasives and polishing techniques. Our experience will help you to avoid errors and run approach to the subject.
We do not thum­ble stones to get smooth and even things that look like the tum­bled stones in the es­o­ter­ic shops, but to dis­cov­er the se­cret of the stone. We have thum­bled stones in the spi­ra­tor for years and have doc­u­ment­ed our ex­pe­ri­ences with stones, machin­ery, abra­sives and pol­ish­ing tech­niques. O ... moreWe do not thumble stones to get smooth and even things that look like the tumbled stones in the esoteric shops, but to discover the secret of the stone. We have thumbled stones in the spirator for years and have documented our experiences with stones, machinery, abrasives and polishing techniques. Our experience will help you to avoid errors and run approach to the subject.
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Sock­el zur Min­er­alien­präsen­ta­tion aus Plexi­glasZur Präsentation besonders schöner Mineralienstufen werden gerne Stufen auf transparente Sockel aus Kunststoff in die Vitrine gestellt. Die Sockel, die sich üblicherweise auf dem Markt befinden (Mineralienbörsen oder div. Zubehörgeschäfte im Internet), sind praktisch immer aus Plexiglas hergestellt. Die Preise variieren von Anbieter zu Anbieter.

In der folgenden Anleitung soll gezeigt werden, dass man aus geschnittenen Rohlingen mit einfachen Mitteln solche Sockel selbst hergestellt werden können.
Zur Präsen­ta­tion be­son­ders schön­er Min­er­alien­stufen wer­den gerne Stufen auf trans­par­ente Sock­el aus Kun­st­stoff in die Vit­rine gestellt. Die Sock­el, die sich üblicher­weise auf dem Markt befin­d­en (Min­er­alien­börsen oder div. Zube­hörgeschäfte im In­ter­net), sind prak­tisch im­mer aus Plexi­glas hergestellt. ... moreZur Präsentation besonders schöner Mineralienstufen werden gerne Stufen auf transparente Sockel aus Kunststoff in die Vitrine gestellt. Die Sockel, die sich üblicherweise auf dem Markt befinden (Mineralienbörsen oder div. Zubehörgeschäfte im Internet), sind praktisch immer aus Plexiglas hergestellt. Die Preise variieren von Anbieter zu Anbieter.

In der folgenden Anleitung soll gezeigt werden, dass man aus geschnittenen Rohlingen mit einfachen Mitteln solche Sockel selbst hergestellt werden können.
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In­di­ca­tor stoneA Scandinavian indicator stone is a glacial erratic composed of a characteristic rock type derived from a small known source area in Scandinavia. This term not only applies to igneous and metamorphic rocks but also to some sedimentary rocks. The Jotnian Sandstone and most of the Palaeozoic limestones, and the Old Red Sandstone are not included in the definition, although the presence of these and other rocks provide some evidence about the source area(s) of erratics and should certainly not be neglected in a stone count. In all cases we recommend including the whole assemblage of erratics/stones in such account. This makes it possible to use several methods of Interpretation. However, it should be pointed out that the practise used in the past, whereby each researcher had her/his own method of interpreting stone counts, has proved to be unsatisfactory. We demonstrate on the bases of over 2000 counts of indicator stones that we have carried out on assemblages mostly from Lower Saxony and Schleswig-Holstein, but also from other N.German states and neighbouring countries, that the TGZ method (LÜTTIG 1958) yields the most reliable results. In addition to this method, the sources of individual indicator stones may be plotted on a so-called circle map and can be integrated with possible source data and the relative frequencies of other erratics in the assemblage. Some rock types are more suitable as indicator stones then others. It is unwise to use clearly unsuitable rock types; this would considerably reduce the reliability of the method and lead to erroneous results.
A Scan­di­na­vian in­di­ca­tor stone is a gla­cial er­rat­ic com­posed of a char­ac­teris­tic rock type de­rived from a small known source area in Scan­di­navia. This term not on­ly ap­plies to ig­neous and me­ta­mor­ph­ic rocks but al­so to some sed­i­men­tary rocks. The Jot­nian Sand­s­tone and most of the Palaeo­zoic lime­s­tone ... moreA Scandinavian indicator stone is a glacial erratic composed of a characteristic rock type derived from a small known source area in Scandinavia. This term not only applies to igneous and metamorphic rocks but also to some sedimentary rocks. The Jotnian Sandstone and most of the Palaeozoic limestones, and the Old Red Sandstone are not included in the definition, although the presence of these and other rocks provide some evidence about the source area(s) of erratics and should certainly not be neglected in a stone count. In all cases we recommend including the whole assemblage of erratics/stones in such account. This makes it possible to use several methods of Interpretation. However, it should be pointed out that the practise used in the past, whereby each researcher had her/his own method of interpreting stone counts, has proved to be unsatisfactory. We demonstrate on the bases of over 2000 counts of indicator stones that we have carried out on assemblages mostly from Lower Saxony and Schleswig-Holstein, but also from other N.German states and neighbouring countries, that the TGZ method (LÜTTIG 1958) yields the most reliable results. In addition to this method, the sources of individual indicator stones may be plotted on a so-called circle map and can be integrated with possible source data and the relative frequencies of other erratics in the assemblage. Some rock types are more suitable as indicator stones then others. It is unwise to use clearly unsuitable rock types; this would considerably reduce the reliability of the method and lead to erroneous results.
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Min­er­alien­por­trait Ana­tas... Der gewöhnliche Habitus des Anatas ist dipyramidal, wobei die Doppelpyramide {111} spitzer als die Doppelpyramide {112} ist und der Form nach einem Oktaeder gleichkommt (aber auch rundlich oder flachdipyramidal). Die Enden der Kristalle sind unterschiedlich, oft nur an den Kristallen eine Dipyramide ohne weitere Flächen. Dies ist der am häufigst vorkommende Habitus. Weniger, jedoch nicht selten, treten Dipyramiden mit abgestumpften Spitzen auf, bzw. auch durch eine Basisfläche angeschnitten, welche wiederum von Flächen weiterer Dipyramiden begleitet sein kann. Stumpfere Dipyramidern können ... Ein Beitrag von Peter Seroka
... Der gewöhn­liche Habi­tus des Ana­tas ist dipyra­mi­dal, wobei die Dop­pelpyra­mide {111} spitz­er als die Dop­pelpyra­mide {112} ist und der Form nach einem Ok­taed­er gleichkommt (aber auch rundlich oder flachdipyra­mi­dal). Die En­den der Kris­talle sind un­ter­schiedlich, oft nur an den Kris­tallen eine Dipyra ... more... Der gewöhnliche Habitus des Anatas ist dipyramidal, wobei die Doppelpyramide {111} spitzer als die Doppelpyramide {112} ist und der Form nach einem Oktaeder gleichkommt (aber auch rundlich oder flachdipyramidal). Die Enden der Kristalle sind unterschiedlich, oft nur an den Kristallen eine Dipyramide ohne weitere Flächen. Dies ist der am häufigst vorkommende Habitus. Weniger, jedoch nicht selten, treten Dipyramiden mit abgestumpften Spitzen auf, bzw. auch durch eine Basisfläche angeschnitten, welche wiederum von Flächen weiterer Dipyramiden begleitet sein kann. Stumpfere Dipyramidern können ... Ein Beitrag von Peter Seroka
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Über­her­rn... In Oberfelsberg angekommen, parkt man, der Hinweistafel folgend, in einer Seitenstraße. Dem Weg Richtung Burg laufend, erkennt man nach 10 Minuten zur Linken die ehemaligen Steinbrüche im Voltziensandstein. Die Werksteinzone steht hier mit zirka 10 m Mächtigkeit an. Hier wurde zum großen Teil der Sandstein zum Bau der Saarlouiser Festung gebrochen. Das größte Stück, das hier gebrochen wurde ... Ein Beitrag von Berthold Stein
... In Ober­fels­berg angekom­men, parkt man, der Hin­weistafel fol­gend, in ein­er Seit­en­s­traße. Dem Weg Rich­tung Burg laufend, erken­nt man nach 10 Minuten zur Linken die ehe­ma­li­gen Stein­brüche im Voltzien­sand­stein. Die Werk­stein­zone ste­ht hi­er mit zir­ka 10 m Mächtigkeit an. Hi­er wurde zum großen Teil de ... more... In Oberfelsberg angekommen, parkt man, der Hinweistafel folgend, in einer Seitenstraße. Dem Weg Richtung Burg laufend, erkennt man nach 10 Minuten zur Linken die ehemaligen Steinbrüche im Voltziensandstein. Die Werksteinzone steht hier mit zirka 10 m Mächtigkeit an. Hier wurde zum großen Teil der Sandstein zum Bau der Saarlouiser Festung gebrochen. Das größte Stück, das hier gebrochen wurde ... Ein Beitrag von Berthold Stein
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Min­er­al Por­trait PyriteThe term used in the plural "pyrites" has often been misused in the past or in common for marcasite, chalcopyrite, pyrrhotite and other yellow to brass-colored minerals. The word pyrite is derived from the Greek "pyrites lithos" (derived pyr = fire and lithos = stone) and describes a characteristic of the mineral, when rubbing against steel or flint (flint) to generate sparks. In prehistoric tombs pyrite concretions and unrolled pyrite where found, which supposed to be used for lighting a fire. (Article in German)
The term used in the plu­ral "pyrites" has of­ten been mi­sused in the past or in com­mon for mar­c­a­site, chal­copy­rite, pyr­rhotite and other yel­low to brass-col­ored min­er­als. The word pyrite is de­rived from the Greek "pyrites lithos" (de­rived pyr = fire and lithos = stone) and de­scribes a char­ac­teris­tic ... moreThe term used in the plural "pyrites" has often been misused in the past or in common for marcasite, chalcopyrite, pyrrhotite and other yellow to brass-colored minerals. The word pyrite is derived from the Greek "pyrites lithos" (derived pyr = fire and lithos = stone) and describes a characteristic of the mineral, when rubbing against steel or flint (flint) to generate sparks. In prehistoric tombs pyrite concretions and unrolled pyrite where found, which supposed to be used for lighting a fire. (Article in German)
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Cop­per - one of the old­est me­t­als of mankindCopper 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
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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Edelsteintage Konstanz
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