New New Mexico – the Sequel

Following on from previous updates, the long and thankless task of cataloguing the endless beautiful but almost indistinguishable New Mexico Browns continues!  Three more new locations have been launched.

Rockhound State Park is a location that has been on the gallery for a while in the form of a donated images, but now I have added two specimens of my own, including a larger one.  These reveal the complexity of the location – a seeming susceptibility to intrusions and punched in caps.


Rockhound State Park Thunderegg

The Los Cruces bed is a new one on me.  All I have to go on is this one specimen, but the presence of something edging towards cloud agate is a distinguishing feature here.


Los Cruces Thunderegg

And lastly, Fish Hook.  The specimens I have seen of these are very fine indeed – large and grand thundereggs (and way outside my budget at the moment!).  Here’s a nice one though, with brecciation and quartz.


Fish Hook Thundereg

I have no doubt there are many many more of these New Mexico Browns out there – all meeting that maddening description “more difference within the beds than between them”.  I look forward to finding more!




The White Ghosts of the Kaolin Pits

The German kaolin mines produce a group of thundereggs that are not quite like anything else out there.  They are clearly from the same geology, yet showing some distinct differences as well. They are characterised by an extremely weathered and crumbly matrix that is heading for white. Often incomplete or damaged, they can still be extraordinarily beautiful. The two commonest locations (as far as any of these are common), are Gröppendorf and Querbitzsch, but there are others out there.  I have a Kemmlitz stone on its way to me as well, which is only more weathered and more ghostly. I will publish that later on.

Gröppendorf Thunderegg

Gröppendorf Thunderegg

Gröppendorf specimens are more prone to solid agate than the others (that I have seen), especially a really striking white that can stand alongside any thunderegg in the world.

Querbitzsch Thunderegg

Querbitzsch Thunderegg

The Querbitzsch specimens, by contrast, are often crystalline with inclusions and the agate reduced to thin bands, if it is there at all. They can also be quite colourful with green or bright red mineralisation. I have more of these on the way or as yet unpolished, so keep an eye out for some of these more colourful specimens in the future.

Groppendorf Thunderegg

Groppendorf Thunderegg

The kaolin egg deposits in this geological area are also one of the sources of the Saxony gravelpits, especially Bokelwitz and Otterwisch.

Querbitzsch Thunderegg

Querbitzsch Thunderegg

Click here for the Germany gallery:

New New Mexico

A selection of new locations and new specimens from New Mexico have been uploaded to the gallery now – a welcom tidy up of that particular page.

South Canyon - IIRC, this is a fairly general location that includes Blue Sky - but not only that and this specimen comes with a tag of nearby. The same classic New mexico Brown though.

South Canyon – IIRC, this is a fairly general location that includes Blue Sky – but not only that and this specimen comes with a tag of nearby. The same classic New mexico Brown though.

An Agate Canyon specimen. This was a float egg and it is safe to say that i know nothing at all about this location.

An Agate Canyon specimen. This was a float egg and it is safe to say that i know nothing at all about this location.

A First Gate thunderegg showing some nice flowbanding.

A First Gate thunderegg showing some nice flowbanding.

A Rare Desolation Canyon Named Bed – Fly Ridge

Desolation Canyon - Fly Ridge Thunderegg

Desolation Canyon – Fly Ridge Thunderegg

How’s this for a turn up!  A stone that was hanging around for ages, sad and lonely and awaiting processing, has just been given a specific Desolation Canyon ID – Fly Ridge.  It is unusual in the extreme to find eggs classified to the actual beds in that part of the world.  There’s plenty of beds but like Lierbachtal and McDermitt, the stones rarely come with actual names. I only wish I could start tracing info and classifying the other specimens I have.  Will have to see …

I do, however, have a Lavish Lady specimen awaiting polishing.  Knowing my busy lifestyle, it might be a while but I will get to it eventually.

Here’s the reverse.  Note the little pink bumps.


Some Controversials

It’s time for the Eibonvale Thunderegg Blog to get controversial!  🙂  Here are two eggs that have sparked mysteries and discussion as I purchased them.

Richardson_unnamed01The first is a bizarre specimen from the Richardson Ranch.  I am told it comes from an area just south of and from a layer just under the Red Bed that has never been named or dug very much. Some people have used the name “Priday Black Bed” or “Black Bart” in association with this, but it seems this is not an official name. Discussion has not raised any alternative to that though. Basically, this is from one of the literally hundreds of pockets of eggs on the Richardson Ranch that have never really been catalogued. The name may have arisen due to the distinctly dark grey exterior of the eggs. In my specimen at least, it is a little darker than the Bed #1, for example.

ochocoredbed03The second is one of a batch of old eggs that turned up on the market recently under the name Ochoco Red Bed, a totally unknown name these days. Possible identities for these include Viewpoint or Yellowjacket – and either could be true. But as there was no resolution to the mystery, and as there seems something distinct about these in my limited experience, I will publish them on the gallery with their original tags for now.  See the others here.

The Rarely Seen Wild Iris Upper Level Thundereggs

Wild Iris Upper Level Thunderegg

Wild Iris Upper Level Thunderegg

I have managed to upload to the gallery a single specimen of the much less common Wild Iris Upper Level.  These are significantly different to the specimens from the lower level, which are becoming quite familiar now, in spite of being found very close indeed in the bizarre rock formation where these originate.  The matrix in particular is very distinct.

Click here to see the full large gallery of Lower Level specimens for comparison.

Eddy Bed Additions

Some very nice new Eddy Bed thundereggs have been uploaded.  Here’s some highlights!

eddybed05 eddybed06 eddybed08 eddybed09