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Sumatra Blue Amber (Sinamar Fm., ~30 Ma)
 
© Kaegen Lau

Sumatra Blue Amber (Sinamar Fm., ~30 Ma)

Barrelcactusaddict

By Barrelcactusaddict

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Palm-sized piece roughly 80g in weight, from the 2 previous entries. This photo better displays the surface fluorescence of the specimen.

Copyright

© Kaegen Lau
From the album:

Fossil Amber and Copal: Worldwide Localities

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Photo Information for Sumatra Blue Amber (Sinamar Fm., ~30 Ma)

Taken with SAMSUNG SAMSUNG WB35F/WB36F/WB37F

  • 4.3 mm
  • 1/33
  • f f/3.1
  • ISO 100
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Barrelcactusaddict

Barrelcactusaddict

Posted

Correction: After reviewing various publications and stratigraphic diagrams of the South Sumatra Basin, and comparing these with information from the seller, I've come to revise the provenance and age of this particular specimen (and others in the lot): it comes from the island of Sumatra, and from the Gumai, Air Benakat, or Muara Enim Formations; the age ranges from ~30-6.3 Ma. There are several different names, which vary by publication, for the Formations throughout the South Sumatra Basin and its Sub-Basins.

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