Скачать или смотреть Dinosaur Gembone Explained! In Ten Levels of Quality

Dinosaur Gem Bone occupies a unique spot in the world of rock. Blending a bunch of topics I already love -- geology, lapidary, biology and storytelling -- with Dinosaurs!

In this video, I walk through ten levels of gem bone from the Morrison Formation looking at factors like color, pattern, durability, specimen value and more. I'm presenting different ways to think about value as it relates to this fascinating material, not telling you what to value!

0:00 Intro
1:01 Level 1
1:17 Gem Bone vs Specimen Bone
1:48 Level 2
2:01 Cells and Trabecula
2:14 Level 3
3:02 Geologic Age
3:27 Level 4
4:20 A Word on Treatment
4:50 Level 5
5:28 A Word on Polishing
6:08 Level 6
6:45 Jewelry Grade Bone
7:29 Level 7
9:55 A Word on Macro-Photography
10:09 Level 8
11:15 Desert Varnish
12:31 A Word on Radioactivity
12:53 Level 9
14:15 Level 10
14:30 Outro