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Found 11 results

  1. Barrelcactusaddict

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

    From the album: Fossil Amber and Copal: Worldwide Localities

    Palm-sized piece roughly 80g in weight. There is a very thin layer of coal on the top and bottom of the piece, making it a good example of a seam-type formation. It's blue coloration is purely surface fluorescence, initiated in this case by a 140 lumen LED light; this fluorescence (especially under a non-LW UV light) is caused by the presence of an exceptionally high concentration of various hydrocarbons contained within the amber.

    © Kaegen Lau

  2. Barrelcactusaddict

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

    From the album: Fossil Amber and Copal: Worldwide Localities

    Palm-sized piece roughly 80g in weight, from the previous entry. Transmitted light through the deepest portion of the piece displays the amber's deep red coloration.

    © Kaegen Lau

  3. Barrelcactusaddict

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

    From the album: Fossil Amber and Copal: Worldwide Localities

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

    © Kaegen Lau

  4. Barrelcactusaddict

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

    From the album: Fossil Amber and Copal: Worldwide Localities

    4.3g dark, transparent blue amber from West Sumatra. After grinding and polishing, I was surprised to discover that it contains 2 ants and 2 winged ants (possibly wasps); these were a little tricky to photograph, due to the amber's strong fluorescence under 140 lumen LED light, so these inclusions had to be backlit. I used a Canon EOS 500D, Canon 60mm f/2.8 Macro Lens, and combined 2x and 4x Hoya circular magnifier lenses (8x).

    © Kaegen Lau

  5. Barrelcactusaddict

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

    From the album: Fossil Amber and Copal: Worldwide Localities

    4.3g dark, transparent blue amber from West Sumatra. Lateral view of the same Psudomyrmex inclusion in the previous entry. The antennae appear to have clubbed tips, but each is actually coated/overlain by a congealed drop of resin within the amber itself (this type of suspended resin formation is characteristic of and common in Indonesian amber).

    © Kaegen Lau

  6. Barrelcactusaddict

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

    From the album: Fossil Amber and Copal: Worldwide Localities

    4.3g dark, transparent blue amber from West Sumatra. This inclusion is most likely a winged ant of the Pseudomyrmex genus, although it may possibly be a wasp. A positive identification of both winged subjects is challenging, due to their deteriorated state and their position within the piece.

    © Kaegen Lau

  7. Barrelcactusaddict

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

    From the album: Fossil Amber and Copal: Worldwide Localities

    4.3g dark, transparent blue amber from West Sumatra. This displays 3 of the 4 inclusions contained in the piece itself, each one a Pseudomyrmex sp. (the winged ants may possibly be wasps, but it is unlikely).

    © Kaegen Lau

  8. Barrelcactusaddict

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

    From the album: Fossil Amber and Copal: Worldwide Localities

    4.3g dark, transparent blue amber from West Sumatra. The inclusion is that of a well-preserved Pseudomyrmex sp. of ant. There is very little documentation, written or photographic, of the flora and fauna inclusions in Indonesian amber, unfortunately.

    © Kaegen Lau

  9. Barrelcactusaddict

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

    From the album: Fossil Amber and Copal: Worldwide Localities

    4.3g dark, transparent blue amber from West Sumatra. The inclusion is that of a slightly deteriorated specimen of Pseudomyrmex sp. of ant. There is very little documentation, written or photographic, of the flora and fauna inclusions in Indonesian amber, which makes me all the more excited to have discovered this piece!

    © Kaegen Lau

  10. Barrelcactusaddict

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

    From the album: Fossil Amber and Copal: Worldwide Localities

    Small (5-8g) partial nodules of raw blue amber from the east flank of the Bukit Barisan range of West Sumatra. These pieces are clear as glass, and fluoresce very nicely under a 140 lm LED light. *This Sumatra material (and Indonesian amber in general) is believed to have been produced by a parent tree belonging to the Dipterocarpaceae family; it's spectroscopic signature is also incredibly similar to Bitterfeld amber (also produced by a dipterocarp source tree). **This blue amber's particular locality is part of the Sinamar Fm., and the layers containing the resin are dated to be approximat

    © Kaegen Lau

  11. Indonesia: First Humans May Have Arrived in Sumatra in Time for Toba Supervolcano Eruption, New Scientist https://www.newscientist.com/article/2142952-early-humans-may-have-seen-a-supervolcano-explosion-up-close/ Old teeth from a rediscovered cave show humans were in Indonesia more than 63,000 years ago August 10, 2017 by Kira Westaway, The Conversation https://phys.org/news/2017-08-teeth-rediscovered-cave-humans-indonesia.html Westaway, K. E., J. Louys, R. Due Awe, and others, 2017, An early modern human presence in Sumatra 73,000– 63
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