Indian Mound or Ceremonial Pick... or, What is it?

[NancyK]

I've had this stick sitting on my shelf for many years. I almost threw it away several times because I didn't know what it was. But now, I think it is an intrusive Indian mound pick or a ceremonial pick. I'd love your help identifying it and the age.
The material that baffles me the most. It feels like very hard stone... or possibly a wooden stick that turned to stone. Or maybe it was cut from a rock.
When I hold it, it is COLD. It's also surprisingly heavy for its size: ~3.2oz
Dimensions: ~8.9"L x 1.1"W at widest center point
Color are browns and greys. I can also see green streak and undertones with magnifier.
I found it in Florida at a recycling center - someone threw it away. It could have originally come from anywhere.
I tried to attach a bunch of photos plus here's a link.
https://flic.kr/s/aHsmP6xbAC or https://flic.kr/s/aHsmP6xbAC

I'd love your feedback! Thx

[Hal Gorges]

It looks like a marlin spike from a sailing vessel, they are heavy.. I’ve only seen brass ones, but some earlier ones might have been made from another non corrosive stuff. Nice save whatever it is...

[sailorjoe]

Hi Hal. Not a marlin spike for lots of reasons. I think you may be thinking of something else.

[Benji]

Not sure but hal may have nailed it

[Stansbery]

You have an historic artifact. It's a late 19'th to early 20'th century whetstone. Well used and worn on one end.

[Hal Gorges]

Boy, I was way Off on that one.

[antmike915]

Nice save what ever it is, I would have brought it home too.

[clovisoid]

Google scythe sharpening stone. The modern ones are made of modern whetstone material, but the historic ones were made from a lot of local stones and they get that characteristic shape and are generally pretty long.

Cool save.

[Olden]

http://www.busenrestoration.com/22401/617055.html