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Help identify please

Erin80

By Erin80
in Rocks & Minerals

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Tidgy's Dad Regular Member

Tidgy's Dad

Posted
Posted

Very pretty.:)

I think it could be chalcedony or another of the cryptocrystalline or microcrystalline quartz varieties.   

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Mark Kmiecik Regular Member

Mark Kmiecik

Posted
Posted

Chalcedony?

 

 

Mark.

 

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Ludwigia Regular Member

Ludwigia

Posted
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I'll have to agree with chalcedony. Not a fossil at any rate. This should be transferred to rocks & minerals.

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Fossildude19 Regular Member

Fossildude19

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Moved to ROCKS AND MINERALS.  ;)

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daves64 Regular Member

daves64

Posted
Posted

Looks similar to what's called an eye agate.

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ynot Regular Member

ynot

Posted
Posted

Looks more like opal to Me. Does a piece of it feel heavy compared to a similar sized rock?

 

 

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  • 5 weeks later...
Oregon Coast Agates New Member

Oregon Coast Agates

Posted
Posted
On 5/3/2022 at 3:48 PM, Erin80 said:

Dug this up in my backyard

Hey! 

 

I'll agree with some of the other folks that mentioned "eye agate" and chalcedony. I would even go further and say it could be common opal or potch. It's also "brecciated" so you could add that onto the final title. 

 

Ex: Brecciated Eye Agate

 

The hardness will help determine what it is. Opal is softer than Quartz, so if you have a way of scratching the surface with something of a known hardness, you can narrow it down. 

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