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

[Gold4Mike]

Just curious if these rocks are anything interesting. The smaller rocks next to the tape measure I found in my backyard creek that is a short couple mile or so creek running down from the hillside above me. Could be from glacial till but the USGS geologic report also shows potential gold bearing geology. I will be doing some sluicing of the gravels this summer and crossing my fingers! The larger rocks are from a gold bearing creek off of the Sauk river south of the Skagit River in Skagit County, Washington. I am not very knowledgeable but am interested in learning more about what I'm looking at. Do any of these look interesting?

 

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[chiseler]

i found a few of these strange rocks at my beach. the colors range from black to a strange dark green. they are a lot heavier than they look and have bubbles in them as though they were liquid in the not so distant past. also they have kind of a ring to them almost like they are metal or glass.

 

[Eu_citzen]

It scratches really easy. I could even shave it with a knife if I wanted. It's flaky, like I could pull of layers.

It sorta has me thinking "clay". Will it soak in water? If yes my best guess is clay/kaolinite.
If no, I suppose you're better off letting someone check it out in person. very difficult to ID without seeing it in person.

 

[Eu_citzen]

not sure what this is but hoping you can help. its been in the family since i can remember. my dad said he found it in the ground. View attachment 1458283

Glass would be my initial thought.

 

[Eu_citzen]

Just curious if these rocks are anything interesting. The smaller rocks next to the tape measure I found in my backyard creek that is a short couple mile or so creek running down from the hillside above me. Could be from glacial till but the USGS geologic report also shows potential gold bearing geology. I will be doing some sluicing of the gravels this summer and crossing my fingers! The larger rocks are from a gold bearing creek off of the Sauk river south of the Skagit River in Skagit County, Washington. I am not very knowledgeable but am interested in learning more about what I'm looking at. Do any of these look interesting?

The top left on pic #1 looks interesting. "Rust" (=limonite) in general is a good sign.
Indeed, note the "vuggy" (porous?) structure of the quartz, that to can be a good sign. Do some sampling!

 

[Eu_citzen]

i found a few of these strange rocks at my beach. the colors range from black to a strange dark green. they are a lot heavier than they look and have bubbles in them as though they were liquid in the not so distant past. also they have kind of a ring to them almost like they are metal or glass.

Slag.

 

[spaghettigold]

found these greenish quartz in a goldbearing riveralluvium .It reminded me of goldore i saw exposed behind glass in a hotel near the italian alps with old goldmines and so i picked it up.
Chipped a little piece and crushed it with a hammer and panned it.
I found a tiny piece of gold maybe half a milimeter,but i,m not shure now if the pan was clean before.
Like to know about the minerals in it ,probability of goldcontent and if crushing and panning is the best way to treat it.
Thanks

 

[Nasus]

rock id

Part of a family collection so I don't know where it was found but likely in Mississippi. It is sparkly under light and has dark specks also. It seems to have a chiseled texture and apperance.

 

[Eu_citzen]

found these greenish quartz in a goldbearing riveralluvium .It reminded me of goldore i saw exposed behind glass in a hotel near the italian alps with old goldmines and so i picked it up.
Chipped a little piece and crushed it with a hammer and panned it.
I found a tiny piece of gold maybe half a milimeter,but i,m not shure now if the pan was clean before.
Like to know about the minerals in it ,probability of goldcontent and if crushing and panning is the best way to treat it.
Thanks View attachment 1459247
View attachment 1459248

View attachment 1459249
View attachment 1459250
View attachment 1459251
View attachment 1459252
View attachment 1459253

I don't see any rust, which is a typically good indicator of gold. The green might be from epidote or some other metamorphically formed mineral.
That is, if it's not organic. I can't tell. I see some quartz in there. Quartz veins would be optimal. This probably is in a granitoid host rock.

Chances seem slim to me, judging just from the pics. And that is awfully little to go on.
In fact, that observation holds no value at all considering your previous test of crushing and panning.

You've got the rocks in your hand. Crush and pan another - the cheapest method. The best method is a fire assay.
Just get some dishwashing liquid and scrub the gold pan clean before testing it again. Avoid contamination.

 

[Eu_citzen]

Part of a family collection so I don't know where it was found but likely in Mississippi. It is sparkly under light and has dark specks also. It seems to have a chiseled texture and apperance. View attachment 1459366

Looks jasper or chert like to me. The texture is unusual. Perhaps some other mineral has been weathered away.
If the holes were more round-ish I'd said slag. But I suppose in this case it may be something else.

 

[chiseler]

Slag.

isnt slag normally light weight and full of holes? these are mostly solid and only have a few holes. the one in the picture probably weighs about 3-5 lbs

 

[spaghettigold]

thanks eu,i try again

 

[Eu_citzen]

isnt slag normally light weight and full of holes? these are mostly solid and only have a few holes. the one in the picture probably weighs about 3-5 lbs

Not all slags are created equal. Iron-rich slags from smelting for example can be heavy. They can also vary greatly in amount of bubbles or lack thereof.
They typically have holes, or rather "bubbles", that's the main reason for me going with slag here.

Not many natural rocks display that phenomena.

 

[chiseler]

Not all slags are created equal. Iron-rich slags from smelting for example can be heavy. They can also vary greatly in amount of bubbles or lack thereof.
They typically have holes, or rather "bubbles", that's the main reason for me going with slag here.

Not many natural rocks display that phenomena.

ok ty

 

[easywolf31]

Help me identify my rocks for Aquariums

Hi guys, found this nice forum and topic googling "identify my rock forum". Very nice to know something like this exists! I'm wondering if you pros can help me identify these 8 rocks I've placed in my aquariums because I'm now researching which rocks release what and how it affects my water's chemistry. Alright here I go with some pictures: (Please ignore the white-brownish coral reef rocks). I can take better more close up pictures also.

 

[Blondiee822]

wanted to know if anyone knows what type of rock it is?

 

[Eu_citzen]

Hi guys, found this nice forum and topic googling "identify my rock forum". Very nice to know something like this exists! I'm wondering if you pros can help me identify these 8 rocks I've placed in my aquariums because I'm now researching which rocks release what and how it affects my water's chemistry. Alright here I go with some pictures: (Please ignore the white-brownish coral reef rocks). I can take better more close up pictures also.

View attachment 1460001

Right, so:
#3 is schist.
#4-5 are likely quartz
#7 Also has some quartz.

I need better pics of the others. Preferably with better color balance..
No matter how much I like blue rocks, it's not helpful for ID.

 

[Eu_citzen]

View attachment 1460127 wanted to know if anyone knows what type of rock it is?

Is it really that "shiny"? Or is it wet?
Will a knife scratch it?

 

[n01d3x]

It won't soak in water, I can "shave" it into a powder pretty easily though. Thanks for trying!

 

[Blondiee822]

Its not wet ..it does scratch it a lil