Wednesday, September 17, 2008

Frog inside a quartz crystal

It's Oil! It's a Frog! It's an Oily Frog!

A fun look at some of the more unusual gems and minerals in our world!

The fact that quartz crystals often form in hydrothermal intrusions into existing rock makes it no surprise that there are a lot of weird inclusions to be found in quartz crystals. But few are stranger than finding Light Sweet Crude Oil inside a quartz crystal. But that is exactly what we have at left. This is an enhydro quartz crystal that actually contains far more than first meets the eye. Let’s look at just a few of the unusual features in this specimen. Read this in its entirety
Source: Robert James FGA, GGPresident, International School of Gemology
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