Found this rock in the desert in texas has odd properties

[Bkfinds]

Did streak test silver matalic part streaks dark grey,black Rock part streaked red. They are not mixed together but hooked to each other. I though hematite and magnatite, but their attractions to a magnet is backwards for those. It is heavy and acclamates to hot or cold in less than a minute

 

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[Bkfinds]

Any one know what it is. I hung it from a string and it just spun in a circle,makes a compass go crazy

 

[Daryn]

Please say it isn’t so 🤦*♂️?! Another rock post

 

[3cylbill]

we LOVE rocks around here ........without rocks where would we be....?

 

[Audozer]

Bk I'm pretty sure Charlie wasn't trying to offend you I think he was just saying that it is implied that this particular section leans more toward the identification of artifacts as opposed to minerals and rocks, I believe you would be more successful at getting a proper ID in rocks/gems. Neat looking rock by the way

 

[The1rod]

Impure magnetite?

But please - take it to a site that cares about rocks. Like the link below. We're after artifacts here.

Rocks/Gems

No where in the name of this forum does it say it's for artifacts, it's simply "our discoveries" which bkfinds discovered this, and "what is it" which he/she wants to know. He/she has every right to post it here, yes they may get a better response in the rock and gem forum, but that doesn't give you a right to try to run him/her out of here under false pretenses that this is an artifact section because it is not.

 

[Tnmountains]

Bkfinds
I am moving your post to where the experts are in this type of identification. I am sorry the other members were so rude here. You have the right to post it here or in the geological section where people are more knowledgable.

 

[Bkfinds]

I posted in the geological section 5 days ago,only tried here for more exposure because it's pretty slow getting a response there.didn't mean to ruffle anyone's feathers that want this forum for their self

 

[olroy70]

I have been to a couple of deserts, but have lived in Texas most of my life... where did you find a desert??

 

[DDancer]

BKfinds, speaking for myself and maybe a few others here in the Rock forum, it is difficult to identify most minerals with just a picture unless they have outstanding attributes. In many cases one of us will ask for simple tests to narrow down what something maybe as well as locality for what is being shown. If we are slow around here its because we want to do the best we can to help out.... or we simply don't know. So post away here if you'd like someone to take a crack at identifying you finds. With some minerals like the one shown you can also try the Gold forum where prospectors and miners hang out.
I enjoy the challenge personally but I dont respond to everyone's posts

You streak tested the specimen, great, the dark grey to me indicates that the metalic portion may be lead~ galena with something more in it. The red indicates iron minerals like hematite. If there is enough magnetite in it then your compass and magnet on a string experiments have some value however these are not really considered good ways to test a mineral. Galena and hematite or iron minerals can occur together in some localities so where you found it may be of value. Often they appear separated. Looks neat though.

 

[Bkfinds]

It was found south of Columbus Texas where it was just sand and cactus. Just sitting on top in the middle of nowhere.the part that streaks red like hematite is magnetic, just thought that was odd

 

[IAMZIM]

It was found south of Columbus Texas where it was just sand and cactus. Just sitting on top in the middle of nowhere.the part that streaks red like hematite is magnetic, just thought that was odd

Hematite can be magnetic. Interesting find!

 

[Eu_citzen]

Hematite can be magnetic. Interesting find!

I'd like to point out: Usually if hematite appears to be magnetic it is due to (trace) amounts of magnetite.
Hematite on it's own isn't magnetic.

_________

Will a knife scratch the silvery stuff?

 

[Bkfinds]

No,hardly could do any thing to it even with a machete file. On both parts.

 

[DDancer]

I've found a lot of rocks in the desert just sitting in the middle of no where EU points out an interesting fact concerning hematite as well ( ).
The hardness is a bit high but I'm thinking pyrite or pyrrhotite are candidates for the silver stuff. I get the impression its monoclinic from the bright spots that show how it fractures.

 

[toddbbq]

I found this wonderful website that has a ton of useful information on meteorites and meteor-wrongs

iron-oxide concretions & nodules 1

 

[IAMZIM]

I'd like to point out: Usually if hematite appears to be magnetic it is due to (trace) amounts of magnetite.
Hematite on it's own isn't magnetic.

_________

Will a knife scratch the silvery stuff?

Thank you sir for correcting me! I learned something new!

 

[Bkfinds]

Thanks those suggestions make sence. It definitely is monoclinic,having crystal like structure on the silver part that is not uniform. The what seems to be hematite part being magnetic is what kept stumping me through my own research. The suggestion being made have been helpful in narrowing it down more.

 

[Bkfinds]

Thanks that makes sence. The silver part is definitely monoclinic having a crystal like structure that is not uniform. The hematite looking part being magnetic is what kept stumping me through my own research. Your suggestions have been helpful in narrowing it down. I've seen pictures of lodestone that looked the same.would that streak red? I figure my rock is probably volcanic sence we found a lot of petrafied wood and a perfect fossilized reptile skull there. Sence part of the silver part is melted also.