Tag: sagenitic agate

Sagenitic Agate

Sagenitic Agate

This cab, which is very large, approximately 1 1/4 x 2 1/2 inches, was not cut (as I usually do) from a large geode or nodule. Rather, the stone, when originally collected by me from The Carver Agate Field, was essentially the same shape and size as pictured. Rock # 4694 It had the classical amygdaloidal (almond) shape with a flat bottom and rounded top. I hand ground, smoothed and polished the outside of this specimen. While grinding away a small amount of the stone to reveal the underlying sagenitic agate, the crystal filled geode center appeared. When I began grinding, I had no idea that I would grind through the thin surface into an underlying crystal filled center. The end of the stone with the yellow dot which looks like it has ice around it (looks a lot like Antarctica, doesn’t it?) is what I have previously seen and […]

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Interesting Stuff from "The Carver" Texas Agate Field

Interesting Stuff from “The Carver” Texas Agate Field

I am finding lots of sagenitic agates and sagenitic material in the nodules, geodes, and vein agates from ‘The Carver’ agate field.  When cut, the sagenitic material appears as radiating needle-like inclusions often resembling a star burst or sun flower.   So what is sagenite?  Technically, it is not a type of rock but an inclusion appearing in a rock specimen.  Sagenitic agate is a radiating needle-like structure encased in a quartz or chalcedony nodule, geode, or vein agate. Please see the sagenite article and more photos in the complete report.