What kind of rock is this?

Rww1987 · Jul 30, 2012

Found this next to the lake and it's magnetic.

Eu_citzen · Jul 31, 2012

I don't think you can get a proper ID on that one, maybe a qualified guess at best.
Rocks are a difficult thing, sometimes even with a loupe and the rock in hand.

I see what looks like K Feldspar.
Can you recognize any quartz, Biotite, or maybe Pyroxene in this rock?

Is it strongly magnetic or just weakly?

Rww1987 · Jul 31, 2012

Eu_citzen said:
I don't think you can get a proper ID on that one, maybe a qualified guess at best.
Rocks are a difficult thing, sometimes even with a loupe and the rock in hand.

I see what looks like K Feldspar.
Can you recognize any quartz, Biotite, or maybe Pyroxene in this rock?

Is it strongly magnetic or just weakly?

I don't seem to have any Biotite or pyroxene in it but maybe K Feldspar. A magnet will hold it's self to the rock. I'll try to post better pics.

Rww1987 · Aug 1, 2012

Rww1987 said:
I don't seem to have any Biotite or pyroxene in it but maybe K Feldspar. A magnet will hold it's self to the rock. I'll try to post better pics.

Another photo.