SKU: 13986068184

Ammoniet setje Groot

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Description

Ammoniet setje GrootAmmonieten zijn gefossiliseerde overblijfselen van uitgestorven zeedieren die behoren tot de orde Ammonoidea. Deze fossielen zijn niet alleen geologisch belangrijk, maar ook gewild onder verzamelaars en in sieraden. Ammonieten waren mariene ongewervelde dieren die behoorden tot de klasse van cephalopoden, verwant aan hedendaagse inktvissen, octopussen en nautilussen. Ze leefden van het Laat Devoon tot het Einde van het Krijt, ongeveer 400 tot 66

Ammonieten zijn gefossiliseerde overblijfselen van uitgestorven zeedieren die behoren tot de orde Ammonoidea. Deze fossielen zijn niet alleen geologisch belangrijk, maar ook gewild onder verzamelaars en in sieraden. 
Ammonieten waren mariene ongewervelde dieren die behoorden tot de klasse van cephalopoden, verwant aan hedendaagse inktvissen, octopussen en nautilussen. Ze leefden van het Laat-Devoon tot het Einde van het Krijt, ongeveer 400 tot 66 miljoen jaar geleden.

Ammonieten worden gekenmerkt door hun spiraalvormige schelpen, die zijn opgebouwd uit verschillende compartimenten of kamers. Deze schelpen konden verschillende vormen en maten aannemen, variërend van enkele centimeters tot meer dan een meter in diameter.  De compartimenten in de schelp waren verbonden door een buis genaamd de sifunkel. Deze structuur stelde de ammoniet in staat om de gasdruk en het drijfvermogen in de schelp te regelen. Na de dood van de ammoniet kon de lege schelp op de zeebodem terechtkomen waar hij bedekt werd met sediment. Door mineralisatie en de afwezigheid van zuurstof werden deze schelpen vaak gefossiliseerd, waarbij de originele organische materialen werden vervangen door mineralen. Ammonietfossielen worden over de hele wereld gevonden, vaak in sedimentaire gesteenten die ooit deel uitmaakten van oude zeebodems.


Kristallen die voorkomen in Ammonieten:

In sommige gevallen kunnen de kamers van ammonietfossielen opgevuld raken met mineralen, wat resulteert in de vorming van kristallen binnenin. De meest voorkomende kristallen die in ammonietfossielen worden aangetroffen, zijn:

Calciet: Dit is het meest voorkomende mineraal dat in ammonietfossielen wordt aangetroffen. Calciet kan variëren in kleur en helderheid en kan soms kristallijn zijn, wat een aantrekkelijk uiterlijk geeft aan het fossiel.

Pyriet: Bekend als 'fool's gold', kan pyriet soms de holtes van ammonietfossielen opvullen, waardoor een metallic glans ontstaat.

Aragoniet: In sommige gevallen kan aragoniet, een andere vorm van calciumcarbonaat, de kamers van een ammonietfossiel opvullen.

Kwarts: Hoewel minder gebruikelijk, kan kwarts ook voorkomen in de holtes van ammonietfossielen.


Deze kristalvorming in ammonieten draagt bij aan hun esthetische waarde en maakt ze tot populaire objecten voor verzamelaars en voor gebruik in sieraden en decoratieve kunst. Wetenschappelijk gezien zijn ammonieten belangrijk voor het begrijpen van de paleontologie en de geschiedenis van het leven op aarde.



✧ Werking 

Ammonieten worden vaak geassocieerd met aardende eigenschappen, waarbij ze worden verondersteld om een connectie met de aarde te bevorderen en spirituele groei te ondersteunen. Vanwege hun spiraalvormige structuur, die doet denken aan de gulden snede en natuurlijke cycli, worden ammonieten soms gezien als symbolen van voortdurende verandering en evolutie in het leven. In sommige tradities worden ammonietfossielen beschouwd als stenen van voorspoed, die rijkdom en succes zouden aantrekken. Ammonieten worden ook toegeschreven aan beschermende eigenschappen, vooral tegen negatieve energieën. Ze worden soms gebruikt om intuïtie te versterken en om toegang te krijgen tot oude wijsheid en kennis. 



✧ Afmeting

Bij bestelling ontvang je het kristal van de foto 

20 cm

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C Rasmussen MD, MS
San Leandro, US
★★★★★ 5
Horrifying but it is a must read
Format: Paperback
This book should be required reading for all high-school students rather than the friendly history books that treat Columbus as a hero. This man was a murderous psychopath. Strong words but after reading this powerful text you will agree. I am ashamed at what these monsters from Spain, and England and elsewhere did soon after Columbus "discovered" the Americas. And all of the sacred knowledge lost. Everything the Mayans wrote down was burned. Knowledge from prehistory--all gone. All of the knowledge from prehistory the Indians in the Amazon basin held, all of the technology on agriculture, building, medicine, sacred knowledge, and much more gone. And for what? I cannot tell you how powerful this book is. I cannot get it out of my head. If you think black lives matter well, sorry folks indigenous Indians of the New World MATTER MORE. They should be rioting for compensation from Spain and England. Oh, I forgot, nobody's left to riot. It was a complete deliberate genocide killing perhaps 80 million paleo-indians from the 15th century on. And they are still killing the rest of them in Mesoamerica and esp. the Amazon where oil and mineral companies are murdering the remainder. And nobody seems to care! Read this book and learn the truth finally.
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Reviewed in the United States on September 19, 2020
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Leric ashe
Carnegie, US
★★★★★ 5
In 600yrs. , life itself, is elusive
Format: Paperback
American Holocaust or books related to the Native American should be required reading. The carnage or genocide, on the inflicted erased thousands of years of culture. We have lost so much which makes us, all less. Hispaniola, had a population of 8,000,00, in 1496. By 1535 they were extinct. Equivalent to N.Y. city today. Spanish and British. One looking for gold, the latter imposing European values, to steal land. But what was most fascinating, the religious hypocrisy. To kill, enslave, torture in the name of God. Who snatches babies from their mother, and feeds them to dogs, hanging natives from a gibber, and burned alive, brand enslaved women's faces every time they are resold ? The British and Spanish were the "Very ministers of Hell".
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Reviewed in the United States on November 19, 2023
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Tameka Hanford
Pawtucket, US
★★★★★ 5
Academic / Thought-Provoking
Format: Paperback
They Were Her Property: White Women as Slave Owners in the American South is a powerful, eye-opening work that challenges long-held assumptions about slavery and gender in American history. Stephanie E. Jones-Rogers thoroughly dismantles the myth that white women were passive or marginal participants in the institution of slavery. Through meticulous research and extensive use of primary sources, including legal records, letters, and testimonies from formerly enslaved people—the book reveals that many white women were active, knowledgeable, and often brutal slave owners in their own right. What makes this book especially compelling is how it centers the voices and experiences of enslaved people to expose the economic, legal, and physical power white women wielded. Jones-Rogers shows that white women not only benefited from slavery but also enforced it, defended it, and used it to build wealth and social status. The writing is clear, authoritative, and accessible, making complex historical arguments understandable without oversimplifying them. This book is an essential read for anyone studying American history, slavery, race, or gender. It forces readers to confront uncomfortable truths and rethink narratives that have long softened or excused the role of white women in slavery. They Were Her Property is both academically rigorous and deeply impactful—a necessary contribution to honest historical understanding.
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Reviewed in the United States on December 16, 2025
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Eric Hobart
Chelsea, US
★★★★★ 5
Remarkable analysis of slaveholding women in Antebellum America
Format: Paperback
Stephanie Jones-Rogers has provided us with a book that looks at the South's "peculiar institution" through a very different lens - the slaveholders/slaveowners, but this analysis looks at women that owned slaves, thus opening up a new avenue of study that I hadn't previously seen. Jones-Rogers offers a well written account that is rich in historical details. She demonstrates through vivid historical evidence that the women that owned enslaved people were primarily driven by economic motives, and that these women were just as demanding and could be just as harsh as the "typical" slaveowner image that has been crafted over the years. The book is organized thematically, and each chapter demonstrates the economic motivation behind slave ownership. The reader is offered views of everything from young children becoming slave owners when their parents "gifted" them an enslaved person, and how these young girls were taught that this was "property" that could be used as desired to how these female slaveholders would sell their slaves to meet their economic goals. All told, this is a fascinating book that uncovers a long ignored slice of Antebellum American history that makes the historiographical literature of pre-Civil War history much richer.
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Reviewed in the United States on June 4, 2021
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Becca
Lowell, US
★★★★★ 5
Poignant, truthful look at women as powerful, business-savvy, yet brutal slave owners
Format: Paperback
Women slave owners were the norm in the South, not the exception. They increased in numbers, stature, and power while the men were off fighting the Civil War. Women often owned the slaves, not the men and knew how to sign prenuptial agreements back then to insure they kept all their property (including slaves) upon divorce or death of their spouse. They traded and bought and sold slaves with business savvy that most men envied. And they could be just as brutal towards their slaves. Ironically, it was the ownership of other people that empowered these women to not be bound to their husbands.
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Reviewed in the United States on January 26, 2025

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