/r/whatsthisrock

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Help identifying this “formerly” yellow mineral

2 upvotes • Zealousideal_Tooth88

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Chert?

2 upvotes • Lopsided_Phrase_7273

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What the heck are these? Found at work in the Coquihalla River, after an excavator ran then over. Founds on multiple job sites in our area. Thanks! (Near Hope, BC)

2 upvotes • Prestigious-Pay1694

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Found at the danish coast

2 upvotes • kventil

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dark green, glassy stone found in the woods. Is this obsidian ?

2 upvotes • ginmeme

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River rock

2 upvotes • 45fhosstrum

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How do I open these?

2 upvotes • cartenui

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Two rocks found on a beach in Eastern Ireland, does anyone know what they are?

2 upvotes • ims1999

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What type of rock is this?

2 upvotes • naturerocks86

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Helpp!!

2 upvotes • simbasmiles

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Help identifying this “formerly” yellow mineral	2	Zealousideal_Tooth88
Chert?	2	Lopsided_Phrase_7273
What the heck are these? Found at work in the Coquihalla River, after an excavator ran then over. Founds on multiple job sites in our area. Thanks! (Near Hope, BC)	2	Prestigious-Pay1694
Found at the danish coast	2	kventil
dark green, glassy stone found in the woods. Is this obsidian ?	2	ginmeme
River rock	2	45fhosstrum
How do I open these?	2	cartenui
Two rocks found on a beach in Eastern Ireland, does anyone know what they are?	2	ims1999
What type of rock is this?	2	naturerocks86
Helpp!!	2	simbasmiles