Dinosaur egg?

[Haroldm5875]

I would like to know what this is. Found in Washington Snohomish county 

[rocket]

a cool rock. The white lines should be quarz. Stones break due to compression while going deeper in the crust, quarz often fills the gaps

[Yoda]

Welcome to the Forum.

 

Agree, this doesn't look like an egg. 

If you look at the top of this ID section, there is a sticky on how to identify eggs. 

[Rockwood]

1 hour ago, rocket said:

a cool rock. The white lines should be quarz. Stones break due to compression while going deeper in the crust, quarz often fills the gaps

The quartz can come as colloidal silica from degraded volcanic glass. Thermal contraction, and tectonic forces also contribute to cracking. The shape of this piece does resemble some dino eggs, but it's almost certainly a coincidence. 

 

 

 

 

[Fossildude19]

 

[daves64]

You won't find dino eggs here in Washington. We were basically the bottom of the Pacific when they were roaming..