Interesting rock found on construction site.

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ruskmusic

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Interesting rock found on construction site.

What do you think it is?
Here is a couple pictures:

 








The shinny parts are silver in color, they are layers and quite soft/maluable. Found it in an excavation pit in upstate Massachusetts, US. Its 3"x4" and weighs about 2lbs, which feels heavy for a stone this size. Also found nearby was a large piece of quartz with ribbons of purple in it, to big to bring home lol I am no longer on that jobsite so cant snap a picture of that.

My guess so far from looking threw pictures with my limited knolage:

ACTINIUM
ASTROPHYLLITE
JAMESONITE

 I would love to hear some opinions and hope the pics and description helps.

Thanks guys,

~Jon

 

Gus Horsley

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It looks like a variety of

It looks like a variety of mica to me - possibly muscovite.

geo_girl

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I second Gus, Muscovite Mica

I second Gus, Muscovite Mica was the first thing that popped into my head. 

 

Leah

 


At first you Mafic I'm basicaly intrusive, but when you get to know me you'll realise I'm orthogneiss.

ruskmusic

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Thanks guys!

Yup thats most likly it. I had a friend take a look in person and he also said Muscovite Mica. Thanks alot I'll post any more cool ones I find on here.

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