GeologyRocks

Looks a little like goethite, but I think I'll guess that it's pyrolusite, because of the streak.

I'm an amature though, so please wait for confirmation from someone with more experience like John or Gus.

Nice specimen! Did you find it?

Edit : I'm not feeling good about pyrolusite either.... Not sure what it is.

thats for the reply. yep it was found along a beach

It looks like pyrite and the blackish streak would confirm that.  It would help to know where it came from because it may be a pyritized fossil such as an ammonite. 

thanks for the input. so much for it being something rare and valueable haha. it was found along a beach. doesn't really look like a fossil to me though, but i'm far from an expert.

 edit: the beach is on the west coast of Newfoundland, Canada

Ok maybe not a fossil then but almost certainly pyrite.

thank you very much sir.

I'd say pyrite as well, but coukd be (perhaps) classed as marcasite, which is still iron sulphate.  Need to see it closer.

John

“Civilisation exists by geological consent, subject to change without notice.” -  Will Durant

unfortunately i'm out of the province and i never brought the rock with me.

would  marcasite be somehting of value? i believe the may be lots more around they area where it was found.

Yeah. If you can find a Victorian jeweller who has a Victorian lady customer.  Fashioned into a brooch it would probably sell for about £3 14s 5d 3farthings - in the currency of the day of course.  Since the average wage would have been about 10/- a week it was quitea valuable prize.

Unfortunately, today, you couldn't give it away.

John

“Civilisation exists by geological consent, subject to change without notice.” -  Will Durant

thanks for the help sir

Glad to help, but I'm not a 'sir'.  The Queen forgot to put my name on the honours list last year.

We've had a chat about it and I've forgiven her of course, and she has promised to try and remember to knight me for next year.

Meanwhile I'll stay just plain Dr Quartz.

John

“Civilisation exists by geological consent, subject to change without notice.” -  Will Durant