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Showing results for tags 'tiger mountain formation'.
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Tiger Mountain Amber (Tukwila Fm./Renton Fm. [Boundary], Middle to Late Eocene)
Barrelcactusaddict posted a gallery image in Members Gallery
From the album: Fossil Amber and Copal: Worldwide Localities
- Subjects: Three exceptional specimens of amber, recovered from exposures on Tiger Mountain, Washington State; this is the second of two videos detailing the specimens' natural fluorescent and phosphorescent responses: longwave UV light (Convoy S2 flashlight) was used in this entry. All were prepared by hand using a diamond needle file, 240 to 3,000 grit SiC sandpaper, and chromium oxide (ZAM compound) on a Selvyt microfiber cloth. - Amber's Source Formations and Age: The amber-bearing coal contained within the the Tiger Mountain, Tukwila, and Renton Formations spans a geologic times© Kaegen Lau
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- fluorescence
- eocene
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From the album: Fossil Amber and Copal: Worldwide Localities
- Subjects: Three exceptional specimens of amber, recovered from exposures on Tiger Mountain, Washington State; this is the first of two videos detailing the specimens' natural fluorescent and phosphorescent responses: 140 lumen LED light (yellow phosphor) was used in this entry. All were prepared by hand using a diamond needle file, 240 to 3,000 grit SiC sandpaper, and chromium oxide (ZAM compound) on a Selvyt microfiber cloth. - Brief Description of Deposit: Tiger Mountain amber occurs in lignitic coal seams, mainly contained within two Geologic Formations, namely the Tukwila and Renton© Kaegen Lau