![Amber (Tukwila Fm./Renton Fm. [Boundary], Middle to Late Eocene)](http://content.invisioncic.com/e327962/monthly_2021_09/small.7769DFDE-C892-42AB-BE53-3EAF63138C09_1_201_a.jpeg.163f3b382a95394ceb28b16328f7f6f0.jpeg)
![Oise Amber (Argiles à lignites du Soissonnais, Lowermost Eocene [~56-53 Ma])](http://content.invisioncic.com/e327962/monthly_2022_03/small.SAM_3437.JPG.27ecba4e1679d184d6b54f60b7736cd6.JPG)
By Barrelcactusaddict
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Dominican amber from the La Cumbre Mine, from the Cordillera Septentrional. Most pieces range from 5-10g in weight, with at least one containing a large two-phase inclusion (enhydro). Material from this mine frequently presents exterior crusts/aggregates of pyrite (iron sulfide); these were likely formed in a reducing, marine/lacustrine environment, where marine sediments, organic detritus, volcanic material (i.e., ash), and sulfate-reducing bacteria helped to provide the sulfides and iron needed.
Copyright
© Kaegen Lau
From the album:
Fossil Amber and Copal: Worldwide Localities
· 163 images- 163 images
- 2 comments
- 21 image comments
Photo Information
- Taken with SAMSUNG SAMSUNG WB35F/WB36F/WB37F
- Focal Length 4.3 mm
- Exposure Time 1/26
- f Aperture f/3.1
- ISO Speed 200
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