Questions tagged [rocks]
The rocks tag has no usage guidance.
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ROCK ID: Heavy, reddish/orange with black, smooth layer from Oklahoma, USA
ROCK ID: Heavy, reddish/orange with black, smooth layer from Oklahoma, USA
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Identification of these metal rocks
Very heavy rocks. If you look close you see crystals inside. Not very reactive to hydrochloric acid. Not magnetic.
Found together on the side of the road, at Chiltern, north east Victoria, Australia,...
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1answer
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Can someone please identify this rock
gray stones with short small dark shiny lines all over it found on beaches of Newport Rhode Island
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What has formed this rock and its colours? [on hold]
I found this rock in Oregon as a boulder in the countryside. It almost looks like a cut of meat in pattern with white crystal look and pops of lavender it weighs about 25 lbs
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Can someone identify these dark red rocks?
It has pretty even color - dark red rock with white snowflakes all over it.
I found it in MA, near lake, where water seems to wash out the shore. The main block was too big to take (but I saw it), so ...
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1answer
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What is this figurine made of:
Have several of these animal figurines, MADE IN USSR on bottom. Can't figure out what type of rock it is made from. Any ideas?
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Could one say that granites are metamorphic rocks, or not at all?
In my old textbooks, granites used to be part of the metamorphic rocks.
Is this still true or not ? If not fully true, to which extent ?
Could someone point me towards clear examples or definitions ...
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Can you identify this rock, please? [closed]
I found this rock at the edge of a field near a fill dirt pile in San Diego, CA
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1answer
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Identification: mystery rock with golden features and shimmer
I found this rock in our backyard in Germany. As our garden is filled with bushes it was very oddly placed and I have carried this rock around with me ever since, wondering what sort of rock it might ...
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1answer
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Help Identifying this rock with a rainbow
I found this rock and I want to know what it is. It looks like green-grey and when I put one side of the rock on the sun, it changes its colors on that side.
Thanks
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What a place that sells rocks is called [closed]
If a nursery sells plants, I'm wondering what a place that sells rocks is called. Something where they offer rocks of various sizes like this:
Well, those are all river rocks, but I'm wondering about ...
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1answer
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I need help with these geode like rocks [closed]
I found these rocks in my pasture and was excited because I thought I had found some geodes. The rocks were in a sandy bank and looked like eggs sticking out of the bank. I am located in Ness County ...
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Iron like rock in western pa, is this hematite?
Found this years ago when digging a garden here in western pa, finaly decided to figure out what it is. Its dull, but has thousands of very tiny crystaline specs, very ferus, even the “rocky” looking ...
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Can someone help me to i identify this rock found in macedonia [closed]
Can someone help me identify this rock? Also, will it react to acid?
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I found this strange spherical stone in Gillette Wyoming. I have no idea what it is. Please help.
These are recent pictures of it. It’s heavy, I see small minerals that catch the light in it, very bumpy, spherical, doesn’t seem to be magnetic, I was falling down a deep trench and kicked it up at ...
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1answer
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Can anyone identify these rocks?
I was swimming in the Mediterranean Sea and found all these shiny rocks underwater, so I dove down and got them. Any clue what these are? To be precise off the west coast of Northern Italy. Hopefully ...
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1answer
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heavy, brown, rock with crystals, please help identify
please help identify this rock. it is heavier than most. dark brown color. picture is shown with streak test. found in Philadelphia pa. at home demolition site. crystals seem to be different type and ...
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Rock identification - origin unknown
I'm trying to identify this rock. It's fairly fine-grained and has a green tint. It's fairly heavy for its size, I cannot scratch it with a figernail but I can make a scratch with a knife. The rock is ...
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1answer
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What kind of rock or stone is this? Where did it come from?
I found this on the side of the road in Oregon, i think it was left or forgoten about thats why it was left there but it has crystal pockets, multiple colors, some smooth sides, perfect circles and ...
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What is the identity of this rock?
I found this rock on the beach on the Dingle peninsula in Ireland. There were lots of sandstones and basalt too. I thought it might be dolomite because it is rhombohedral and has a white streak, but I ...
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1answer
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What kind of stone is this? Can I safely test it with acid?
Found in Wisconsin, top appears black to dark blue, slightly translucent at the edges.
Is it safe to use acid to test this material?
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Hollow sound from ground
There is a spot in my parents dirt driveway that produces a hollow thump when stomped on or struck.
As far as I can tell, the gravel is only 3 inches overtop a large boulder.
The entire area is ...
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1answer
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Can anyone help identify this? Or point me in a direction of someone who could
Can anyone help identify? It's crystalline structure is non geometric transparent to light milky (white/purple area) clarity the green color appears gritty and solid like suspended inside the crystal. ...
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2answers
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Can someone help me to identify this rock?
A-density:2.66g/cm3,weight:370g,rock attract the magnet
for this rock I do not have the density currently
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Peculiar Piece of Petrified wood? Or just another piece
Multiple years ago I found a chunk of petrified wood in my grandmothers yard in Northern Utah, what is unique about it is you can see the transition from rock to wood. But the wood feels like wood, ...
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1answer
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Help Identify My Rock Please [closed]
My daughter found this rock in a field and I am curious to know what exactly it is...please help!! Its like a white color (almost like concrete) but has specks of shiny blue and clear stones in it ...
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1answer
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Glacial erratic - Granite or Gneiss?
This boulder is a glacial erratic in New Jersey. Can anyone tell if it's granite or gneiss? When you look at from the side, there appears to be foliation... but when you look at from the top or other ...
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3answers
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How is this crumbly crystal-rich rock formed?
I found this crumbly rock embedded in the channel walls of a small creek in Everett, WA, USA. (North Creek that flows through McCollum Park.) If possible, I'd like to know how the rock formed... what ...
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1answer
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What is this red rock with crystal white inside?
I found this rock in the desert. I found similar rocks that are crystal white on the inside, but this one is rough on the outside and all the others are smooth. Plus all the rough rocks doesn’t have a ...
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1answer
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Can anyone help me identify this rock?
This is probably just something really common and boring to most people, but I was intrigued so I thought I might as well ask now I can. When I was in Portugal (I don’t know specifically where we were)...
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3answers
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Can anyone help me identify these rocks please?
I apologize for any errors in my pictures or writing. My first post.
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Whats this stone?
Found it couple days ago and it amazes me how smooth the surface is but cant identify it please help me.
Found it in north germany near a lake on a trip there.
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1answer
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Need help identifying this rock
I need a little help identifying this rock. It was found somewhere in the Sahara Desert. It is very hard and leaves a beige streak on a steel file (might be the concretized dirt covering it). The ...
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1answer
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Rock/mineral identification - smooth black inside
It’s yellow and grey on the outside but smooth and black on the inside. Very roughly 2.27 g/ml
Just curious, it almost like sea glass on the inside but it’s far too dense.
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2answers
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Help me figure out what this purple rock is
I found this in the ground at a job site in blue springs mo . Its purple with darker purple lines through it like growth marks on a tree. It is about the size of a large loaf of bread 7 inches across ...
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Can anyone help me figure out what kind of rock this is?
I was cleaning out my basement and I found this wrapped in a cloth inside a tin case. Does this rock hold value? What is the geological history of it? I'd really appreciate insight on this.
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Could you help me identify these rocks please
Found these whilst walking around Warwickshire please could you help.thanks
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2answers
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I believe we got this rock in the mountains of Creede Colorado
Solid, has some weight to it, looks like it possibly has some purple amethyst on the opposite side, but mostly consists of this silver:
Can anyone identify it as silver?
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2answers
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What type of yellow-green stone is this?
It's greenish yellow with white. Got it in a mixed stone package from Amazon.
No luster, I'd say a 7 in hardness, it doesn't look homogeneous.
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1answer
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Unidentified mineral found in France
(I am not a native english speaker, so I'm not really aware of the specific terminology.)
A few years back, I found an unidentified rock on a beach in Normandie (France). It looks and feels (texture-...
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1answer
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How does this melted-wax erosion pattern form in sandstone?
How does this kind of erosion pattern that looks like melting wax form in sandstone? Can you describe the kinds of processes and kinds of rocks that are needed for this? I've seen it in Nevada, but ...
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1answer
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Identify this transparent brown rock
t
The rocks are pretty small they are dark brown and comoleyelybsee through.
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Basalt, slag or meteorite?
I found this rock on the edges of a known Drumlin in North East England. It looks to be a fragment from a larger piece. It attracts a magnet strongly, it weighs 150 grams. It has vesicular holes (on ...
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Identification of rock samples
These samples were found unlabelled in a museum shelf. Could someone help me identify them?
https://imgur.com/a/LQ4qZ1T
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1answer
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Identification of rocks
My mother found a lot of unlabeled rocks samples in a museum shelf and has to label them. Unfortunately, both of us know nothing about rocks. Could someone help us in identifying these samples?
https:...
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1answer
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Please help me identify this stone (Look like some kind of quartz, but I'm not sure.)
My young sister found this stone on a street and she asked me what type it is. And I really don't know.
It was found in Western Ukraine, in North Galicia. But it may be that it was brought here from ...
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Identifying rocks, minerals
I am sorry to bother you.. before passing away, my grandfather gave me a special box that contained all types of beautiful, colorful rocks and minerals. I am having a hard time identifying them! Could ...
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2answers
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Strange scar marks on pebble
My question is not specifically about identification of this piece of rock. Instead I am focusing on the origin of the scar marks on this rock. I have found this stone in the pebbles in the path. This ...
