Any ideas on this sphere?

[diggummup]

The black areas are magnetic (see magnet in 1st photo). It's 4 1/2 inched in diameter. Purchased at a garage sale for $2.

[diggummup]

Does magnetite "spider" out like the magnetic dark areas on this sphere?

I tried to get a better close up but this is the best I could do, doesn't show too much but it may help-

[Eu_citzen]

Seems to be hydrothermally deposited magnetite, but the host rock is more difficult to say.
Probably quartz is somewhere there in the equation as hydrothermal activity rarely excludes it.

[diggummup]

Thanks EU. I can't resist buying rocks and spheres when I see them at sales. Just wish I knew what half of them were.

[Eu_citzen]

No problem, I personally like to collect them myself and when possible cut them also.

Here is for example a smokey quartz I cut with my own design to make it look like a cross in the stone:


Keep on posting then, it's always fun to see different kind of rocks.

[diggummup]

Very nice, you've got talent.

[kkglawson]

for one thing they never found it in a sphere it was polished to be like that and it looks like quartz with iron in it

[diggummup]

for one thing they never found it in a sphere it was polished to be like that and it looks like quartz with iron in it

Your kidding?? You mean there aren't perfectly round polished spheres under the ground all over waiting to be dug up?

Come on man, give me a little credit, i'm not a friggin i d i o t.

[tncreeker]

for one thing they never found it in a sphere it was polished to be like that and it looks like quartz with iron in it

Your kidding?? You mean there aren't perfectly round polished spheres under the ground all over waiting to be dug up?

Come on man, give me a little credit, i'm not a friggin i d i o t.