Tag: geology

West Texas Baconite from the Carver Agate Field

West Texas Baconite from the Carver Agate Field

This pink and white banded agate looks like a bacon slice and so that is the name I gave it. The upper edge of the ‘baconite’ contains petite quartz crystals–technically euhedral quartz crystals–that formed in the center of a geode of which this is a part. The outer rind of the geode is seen at the bottom edge of the ‘baconite’ specimen.  

Brecciated Jasp/Agate from The Carver Agate Field

Brecciated Jasp/Agate from The Carver Agate Field

The Carver has produced red and yellow jaspers, sometimes mixed with green.   Yellow and red are seen in this photo.  After the jasper had initially formed, volcanic forces cracked/fractured the jasper into angular shards. Eventually a silica solution in either a liquid or semi-liquid state filled the fractured shards and then hardened, cementing the jasper back together.  These shards that are cemented back together are called brecciated.  Since some of the silica filling in the areas between the shards took on a banding (see particularly the upper left corner of the stone), we see a fortification agate which has formed within the brecciated jasper. For this reason, this specimen can be described as jasp/agate (part jasper, part agate) which is brecciated.

5 NEW Diversity Galleries for 2019

5 NEW Diversity Galleries for 2019

Wow! Three months collecting rocks on ‘The Carver’ in the fall of 2018 and January 2019 has yielded amazingly varied and beautiful geodes, agates, and jaspers. I have selected 108 specimens that I believe show the extraordinary variability of color, banding, and sagenitic inclusions (those neat weird shape things you can see hidden in each rock specimen). There are 5 galleries in this set 2019 Diversity Gallery #1 2019 Diversity Gallery #2 2019 Diversity Gallery #3 2019 Diversity Gallery #4 2019 Diversity Gallery #5 If you have questions or comments about any specimen, I would like to hear from you. ‘The Carver’ agate field is all about geological diversity.  I hope you enjoy viewing these new galleries.  

Small Pocket Yields Amethyst and Smoky Quartz Geodes and More

Small Pocket Yields Amethyst and Smoky Quartz Geodes and More

A small but rich pocket, recently uncovered on ‘the Carver’, is yielding an amazing number of geodes and nodules. The nodules contain banded blue and gray agates and many contain amethyst and smoky quartz crystals found within geodes (hollows) within the nodules. One large geode has a spectacular void with a sparkly druzey cavity. This pocket, which is still being explored, has yielded hundreds of nodules and geodes, some as small as a finger nail, some exceeding 17 pounds in weight. On one particular hunting foray, the pocket yielded blue, gray, and white banded agate nodules of the following weights: 17.6 pounds, two at 13 pounds each, 8.2 pounds, two at 3.4 pounds each, and 2.7 pounds. On another rocking foray, an astounding quantity of medium-sized nodules was recovered. I am in the process of cutting and polishing many of these nodules, although with the number involved the task will […]

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Geologically Significant: New Amethyst Agate Geode Find

Geologically Significant: New Amethyst Agate Geode Find

A 16+ pound amethyst agate geode found on ‘the Carver’ has recently been cut into 3 pieces, and polished. The geode rind is purple amethyst and approximately 1 1/2″ thick in most places. This thick amethyst rind encircles an approximately 5 1/2″ x 2″ crystal-filled hollow center. The amethyst crystals in the geode center are covered with a secondary surface mineral crystallization of a yellow/beige color. Even more interesting, the yellow/beige mineralization layer coating the amethyst is, in places, coated with a gray/black crystallization layer apparently involving a third type of mineral (I am seeking expert assistance to identify the mineralization involved). The gray/black mineralization layer appears to have intruded into the geode through the rind of the geode, into its center. This intrusion is visible on the photos shown.   Amethyst Agate Geode Slice A Amethyst Agate Geode Slice B   This specimen is geologically significant because it was […]

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