Got A Rock you Want Identified? Post it here! gimme a good picture or 3 or 4!

[Catinalynn]

Oh! Green/blue lava rock? It does sort of have that feel. It's slightly magnetic, not porous though but other small pebbles are embedded in it on the outside. Kind of makes sense.

 

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[arizau]

Oh! Green/blue lava rock? It does sort of have that feel. It's slightly magnetic, not porous though but other small pebbles are embedded in it on the outside. Kind of makes sense.

I'm no expert and I am also color blind so colors, particularly green, mean nothing to me...it just looks like lava to me. Maybe an expert will chime in. Check towards the bottom of this link about green sand. http://www.instanthawaii.com/cgi-bin/hi?Volcano.types. Maybe what you have is rich in olivine but not in crystalline form.

 

[Wamgold]

Thanks EU - lol, I need to keep my feet on the ground till I figure it out - yes, going to have it tested - it's a totally unexplored area, so no history to rely on

Just in case, I did a video that might show the gold grains better, but can't upload here. I'm wondering if the grains might be pyrite, as some of them are a slightly darker color than the others - but it's literally throughout all the grey parts of the rock, like icing sugar

 

[Wamgold]

No worries - I appreciate the time anyway, EU - heading out again for a couple of days, but will try again when I'm back

 

[arizau]

Thanks EU - lol, I need to keep my feet on the ground till I figure it out - yes, going to have it tested - it's a totally unexplored area, so no history to rely on

Just in case, I did a video that might show the gold grains better, but can't upload here. I'm wondering if the grains might be pyrite, as some of them are a slightly darker color than the others - but it's literally throughout all the grey parts of the rock, like icing sugar

If what you are seeing is still yellow in shaded light it probably is gold and if not, then it is not free milling gold and you can prove that by pulverizing and panning the fines.

 

[Eu_citzen]

View attachment 1433298 What is this? I inherited this and the gentleman is no longer with us. I have no idea where it was collected from. Possibly Montana.

Would need a better close up picture, please.

 

[Eu_citzen]

Thanks EU - lol, I need to keep my feet on the ground till I figure it out - yes, going to have it tested - it's a totally unexplored area, so no history to rely on

Just in case, I did a video that might show the gold grains better, but can't upload here. I'm wondering if the grains might be pyrite, as some of them are a slightly darker color than the others - but it's literally throughout all the grey parts of the rock, like icing sugar

I hear ya, I have the same problem on occasion. See arizau's comment, which can be helpful.

 

[UNERTHEN]

For the newbs....

....like myself. I know its just rock and crystal, but what kinds? Saw them while working at a construction site north texas. I mostly metal detect and i know there's little value in crystals, but I just can't walk by something cool like this....best surface find I had in a while.


Hope everyone hits paydirt.

 

[AlannaMichelle]

This was in my garden. The previous owners of the house both worked for the forestry service here in Oregon. I think they used to bring home rocks they found. We have a ton of petrified wood and other random rocks that I know nothing about but this was the prettiest one I've found so far.

 

[Wamgold]

If what you are seeing is still yellow in shaded light it probably is gold and if not, then it is not free milling gold and you can prove that by pulverizing and panning the fines.

Thanks Arizau - yes, they glow nicely even in shadow - hopefully know for sure soon

 

[Eu_citzen]

....like myself. I know its just rock and crystal, but what kinds? Saw them while working at a construction site north texas. I mostly metal detect and i know there's little value in crystals, but I just can't walk by something cool like this....best surface find I had in a while.
View attachment 1433917 View attachment 1433917 View attachment 1433918 View attachment 1433918

Hope everyone hits paydirt.

Possibly calcite or quartz in a sedimentary rock. I'd see if it reacts with vinegar - if yes, calcite.

 

[Eu_citzen]

This was in my garden. The previous owners of the house both worked for the forestry service here in Oregon. I think they used to bring home rocks they found. We have a ton of petrified wood and other random rocks that I know nothing about but this was the prettiest one I've found so far.

My mind slips to cavansite, due to color. No idea what it might be. Doubt it's cavansite.
It's nice for sure, to nice to do any (destructive) tests on. Bring it to a rock club, university or similar for a proper ID is my suggestion.
Many rocks are best seen in person.

 

[CrazyBasenjiLady]

Please identify?

Found this in a bucket of rocks at a flea market. Had a "local expert" look at it and he said it was valuable. He just wouldn't tell me what it was and wouldn't offer a value. Have a few other similar pieces in rougher form. If you need more photos, please email. Thanks!

 

[jaimieleeb]

I saw this rock the other day and I'm wondering what it is!
It was composed largely of coarse alkali felspars. It also had coarse crystals of quartz and what I think to be hornblende.
It had a fine grained dark matrix.

I almost want to call it some sort of syenite.
Any ideas?

Thanks!

 

[K913]

Super amateur but can you tell me what kind of rock is this? I found it in my backyard in Texas and is super smooth and rosey color. Never seen anything like it.

 

[Eu_citzen]

Found this in a bucket of rocks at a flea market. Had a "local expert" look at it and he said it was valuable. He just wouldn't tell me what it was and wouldn't offer a value. Have a few other similar pieces in rougher form. If you need more photos, please email. Thanks! View attachment 1435495

Nice color! Do a hardness test - find a quartz and see if one will scratch the other. If you don't have quartz - use a knife.
Might be massive aquamarine, something related to quartz or something else I can't think it right now.
The second option is more likely.

 

[Eu_citzen]

View attachment 1435531

I saw this rock the other day and I'm wondering what it is!
It was composed largely of coarse alkali felspars. It also had coarse crystals of quartz and what I think to be hornblende.
It had a fine grained dark matrix.

I almost want to call it some sort of syenite.
Any ideas?

Thanks!

Use a knife to see if the black stuff isn't mica. Syenite, as a rule of thumb, has max 20% quartz. You can estimate it just by looking at it.

From the image I'd say it certainly is bordering in between granitoid & syenite. A freshly exposed surface would help with the ID.

PS: I see a quartz crystal in the pic!

 

[Eu_citzen]

View attachment 1435575

Super amateur but can you tell me what kind of rock is this? I found it in my backyard in Texas and is super smooth and rosey color. Never seen anything like it.

Quartz, I'd say.

 

[Jerry Goodall]

I received these from my Uncle after he passed away> I don't know where he got them from. Sorry if I posted this wrong first time.

 

[Eu_citzen]

#1-2 Uncertain.
#3 Malachite
#4 Chalcedony
#5 Jasper
#6 Jasper