- [SOLD]
- Dinosaur Bone Agate
- Silicified Bone
- Jurassic Period, Colorado and Utah, USA
- Brown, Red, Orange, Yellow, Blue
In some rare instances, bones that were buried by volcanic
activity or washed downstream and buried in sediments were slowly
replaced cell by cell with microscopic quartz. Impurities in
the silica cause the replacement to be quite colorful. In many
cases, the actual cell structure was preserved and in some cases,
the bone casing is still intact. It is increasingly rare to find
colorful bone. Few old collections remain from the 30's when
most of it was surface mined by old time rock hounds. It is prized
by cutters and collectors all over the world.
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