Another "is this petrified wood" post

[winnph]

I'm becoming a habitual "is this wood" poster... I found this one yesterday on the shores of Lake Washington near an outcrop of the Blakeley formation, and just polished one face using sandpaper. Specimen measures 1.5 inches in the longest dimension and the polished face measures 1 inch x 1 inch. SG is 2.48 by suspension method, +/- 0.01g accuracy. The lighter spot on the polished face is where I got lazy before removing the entire weathered surface.

[ynot]

Yes, this is wood.

[winnph]

26 minutes ago, ynot said:

Yes, this is wood.

[Notidanodon]

I think so as well

[Rockwood]

Good demonstration of how to expose it as well. 

[winnph]

4 minutes ago, Rockwood said:

Good demonstration of how to expose it as well. 

It involved wearing down my underpowered arm muscles with 60 grit, 220, then 400 grit for good measure.

[Rockwood]

1 minute ago, winnph said:

It involved wearing down my underpowered arm muscles with 60 grit, 220, then 400 grit for good measure.

I would use my angle grinder with a tile cutting blade to start and finish with a random orbit sander.

Today I'm a plow jockey though because it's snowing here. 

[Plantguy]

On 4/8/2019 at 4:11 AM, winnph said:

It involved wearing down my underpowered arm muscles with 60 grit, 220, then 400 grit for good measure.

Nice....I do that 2!!...makes it much easier to see what the heck is going on inside. 

 

Regards, Chris