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Chalcedony glow!
0:20
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Botryoidal Chalcedony n' Jasper Glow!
0:28
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Broken Thunderegg Cluster!
0:35
4
Chalcedony n' Quartz Veins!
0:36
5
Half a thunderegg!
0:52
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Thunderegg Cluster w Common Opal!
0:41
7
Red Thunderegg Shard!
0:42
Botryoidal Geode!
0:26
9
Botryoidal Geode!
0:36
10
Botryoidal Plume Agate!
0:43
11
Chalcedony Geode!
0:31
12
Geode Shot Glass!
0:33
13
Chalcedony Geode w/opal!
0:31
14
Agate Cut!
0:57
15
Hot mess of Conglomerate!
0:43
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Jasper w/iron inclusions!
0:34
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Chalcedony Chunk!
0:45
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Plume agate!
0:24
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Can't wait to cut this one!
0:45
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Crazy Lace Agate Cut!
0:51
21
Thundereggs?
0:59
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Chalcedony & Crazy Lace Cut!
0:59
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Plume w/CrazyLace cut!
0:59
24
Thought it would be three thundereggs!?!?
0:56
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Plume botryoidal chalcedony nugget!
3:03
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Plume slice!
2:03
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Botryoidal slice!
2:03
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Plume agate inspection!
4:32
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Plume flow!
2:13
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Botryoidal Chalcedony Nugget!
1:51
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Botryoidal Glow!
1:03
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Square geode!
0:33
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It's curved!
0:39
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Botryoidal formations!
0:32
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Jasper, Chalcedony, Opal & ???
0:52
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Nodule with crystals!
0:30
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Chalcedony or Opal!?
0:31
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Chalcedony!
0:24
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Carmel Chalcedony Nugget!
0:34
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Clear/White Banding!
1:02
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Looking for colors!
1:00
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Love the orange/yellow!
0:17
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Some botryoidal goins' on!
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One 4 cuttin'!
0:35
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Pretty chalcedony!
0:32
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White Chalcedony!
0:26
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Jasper? Chalcedony?
0:33
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Opal or Chalcedony?
0:17
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Chalcedony nodule!
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Green & White Chalcedony!
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Spot o' Orange!
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Half Nugget!
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Opal?
0:17
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Lil' bowl!
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Love the red!
0:31
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Chalcedony or Opal?
0:19
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Botryoidal chalcedony!
0:19
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White botryoidal chalcedony?
0:22
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Agate w/Orange Chalcedony!
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Smooth Shard!
0:22
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White Chalcedony Inside!
1:16
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More Cut White Chalcedony!
0:51
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Glow Shard!
0:46
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Nice Glow!
0:37
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Opal or Chalcedony?
0:24
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Chalcedony & Jasper!
0:30
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White/Yellow Chalcedony!
0:34
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Botryoidal chalcedony!
0:27
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Yellow & White Chalcedony!
0:33
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Agate Nodule w/Chalcedony!
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Sandwich o' Chalcedony!
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Chalcedony Sqared!
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Chalcedony Blob!
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Pretty Red Jasper!
0:40
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Beautiful Colors!
0:33
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Chalcedony?
0:36
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Chalcedony!
0:24
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Quartz or Chalcedony!?!?
0:28
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Chalcedony from a Thunderegg!
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Chalcedony!
0:30
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Chalcedony!
0:30

Botryoidal Geode!

18 days ago
35

This rock appears to be a geode filled with chalcedony or agate. Here's a detailed explanation:

Geode: Geodes are hollow, vaguely spherical rocks, often formed in volcanic and sedimentary rocks. They have a thin outer layer and are typically lined with crystals inside. The one in the image has been cut open to reveal its interior.
Chalcedony: This is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. Chalcedony can appear in various colors and forms, including agate, which has banding or layers.
Agate: If the chalcedony within the geode shows banding or layers, it could be classified as agate. Agate typically has more distinct color bands, which might not be very clear in this specimen due to the type of formation or the cut.
Formation: Geodes form when gas bubbles or volcanic cavities get filled with mineral-rich water. Over time, the minerals precipitate out of the water, forming layers or crystals inside the cavity. In this case, the minerals appear to have formed botryoidal (grape-like) structures, which is common in chalcedony.
Appearance: The white to light gray, rounded, botryoidal formations inside the geode suggest chalcedony. The outer shell seems to be a mix of quartz and possibly some iron staining, giving it the brownish hues.

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