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Questions tagged [identification-request]

For help in identifying objects such as rocks, minerals, clouds, etc. Please include as many details as possible.

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Rock ID: Very hard, green, slightly transparent, some gray parts on outside. found in South Korea

Hi! My name is Thomas, I am a senior student in Canada. I found this rock as a kid in Korea in a high mountain area. I was always wondering what this thing was. Its very heavy, and also very hard. A ...
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Help identifying rock please

I have this rock that was given to me as a gift a few years ago but I have no information on it. I would like to find out what kind if rock it is. Can anybody help me figure that out please??
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This rock I found in a park, Arizona, not sure what is

I'm not sure what this is, it's a rock, looks to be hand made into its shape, but I'm not sure. You can see it sparkle on the inside, there seem to be little crystals when the light hits it. It is ...
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213 views

Metallic rock identification from Ontario Canada

This rock was found in Lake/Lac Clair near Sturgeon Falls Ontario Canada in about 2 feet of water next to the edge of the lake. It can easily fit in my hand. You can see a size comparison in the ...
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Rock ID: brown, magnetic inclusion in Carpathian amethyst geode

What I believe is an amethyst geode (roughly 6" = 15.24 cm across) from somewhere in the Carpathian Mountains contains an oval-shaped inclusion of material with what look like pits of green ...
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57 views

Rock identification?

This stone is part of a rock mass found in one of the plains of Iran. There are no rocky mountains around these rocks. I'm geologist and I guess it's part of the meteorite, what do you think? Color: ...
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Identification: Greenish Greek stone

Volume: 100ml +- 2% (yes, I couldn’t believe it either); Mass: measurement pending, but above 200g I just bought a mineral identification book and it says to take a streak. I tried with tiles at home,...
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89 views

What is this complex looking rock with lavender and yellow crystal areas on a lighter-colored matrix?

New to the forum and in search of a little help to id this specimen. Not sure of the specimen’s origin location. It has shiny, lavender colored crystals, as well as yellow-greenish crystals, on a ...
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Ordered arrangement of clouds

I happened to take a photograph of a region of clouds ,and it seems to have a rather ordered arrangement ,if one looks towards the left of the image. Would there be a physical explanation for this or ...
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Can anyone help me identify this rock found in Tulsa Oklahoma?

I was working in my front yard in Tulsa Oklahoma and ran over this rock with my lawnmower. It was logged in the ground enough I didn’t see it. It’s 2.5 inches in length. Black in color with what ...
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56 views

What is in this rock?

There were many, many examples of this, my photo simply shows a situation where I had even light and time to take a photo without making anyone wait for me. The basic rock is obviously sandstone. ...
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Identify tiny green crystals on a pinkish/yellowish rock coming from Epupa Falls on Kunene River North of Namibia

That my first post : I'll try to follow the guidelines. 1) I provide 2 pictures of my sample : the first one from the tiny green crystals themselves, and the second one from the rock supporting the ...
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64 views

Rock identification

Hardness 5 to 7. Colour brown, however turns grey with polishing. Lustre earthy doll, changing to shiny metallic after polishing. Gravity heavy. Not magnetic. Location eastern coast of Australia ...
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208 views

What kind of rock/mineral is this pinkish stone I found in Colorado?

I found this in my backyard and would love to know what I'm looking at. It reminds me of a fossil. I live in Colorado, Denver-metro. The sample is about 2 inches top to bottom, weighs maybe .5 lb, ...
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0answers
399 views

What is this white rock with black speckles throughout?

I was wondering if you have any ideas on what kind of rock this might be? I know that it doesn't effervesce with HCl (no reaction with hydrochloric acid at all) and the size and shape of each grain is ...
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What is this 6in Nor Cal beach boulder with waxy veins?

Nor Cal beach @ low tide. 6in, photographed wet, post acid wash. Veins look waxy.
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262 views

Is this a conglomerate type sedimentary rock?

This is my first attempt at studying geology. A year ago I found this stunning rock in the Maumee River here in Northwest Ohio. The rock is very smooth in texture, measures approx 2 cm, and was ...
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123 views

Can you Identify this?

I went hiking and I found this rock with something inside. I would like to know what it is. Thanks!!!
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44 views

What causes frozen “shooting water” spikes from ice covered water in the winter?

I have seen things like this appear once or twice on cold winter mornings, a frozen spike of water from an ice-covered container or very small body of water (puddle). I found the photo below at Mel ...
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Rock ID: black, white and orange, from Malaga, Spain

I picked up some very interesting rocks and pebbles on the beach in Malaga, Spain this summer. They are predominately flat and colored dark grey crisscrossed with stripes of orange and white. The dark ...
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112 views

Rock I.D: Plattsburgh, NY, Heavy, Metallic Luster

Can anybody help me identify this? It was found in a friends yard. It’s very heavy, non-magnetic, and shines like silver. The rock was found by a friend in the yard by itself. Seems extremely hard, ...
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Is this Basalt, Ophitic or Conglomerate?

This rock was picked up this summer at High Rock in Keeweenaw Co. MI. I'm sure it's basalt, but is odd the aggregate when chipped is tan to white inside and contain a lot of tiny crystals. The ...
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232 views

Is this Black Serpentine?

I found this rock at a lake edge in Co. Sligo Ireland,its shiny black,leaves a black streak, weighs 320 grams displaces 125ml of water which gives it a density of 2.56 https://www.youtube.com/watch?v=...
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What is this dull whitish rock with ornate black patterns found in the Arkansas Crater of Diamonds?

I found this rock while wet sifting dirt brought back from the Arkansas Crater of Diamonds. It looks as if it is hand painted. It is smaller than my pinky nail. It’s dull, and makes a chalk-like mark ...
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What are these gray and white rocks that show some rust coloration which were found in TN?

I found it in a gravel parking area at work (TN). It isn't magnetic and does not produce a streak. The surrounding rocks looked like they were "rusted" by these rocks. The rock on the left has a white ...
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Is it an egg? What type of rock please?

This stone was found by my uncle in Western Queensland. It’s light brown in colour and smooth. It's very heavy for its size. 780 grams. Pocket knife doesn’t scratch it. many thanks.
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Help me identify my rock is it jade?

Found this rock it looks like a vein of Jade but I have no idea. This is the inside of the rock. I found it already broke the rock is wet in the pic. It's is a hard rough texture and the green in the ...
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Identification required, rock formation found whilst on holiday in Cephalonia, Greece white object embedded inside?

This rock was found in kephalonia Greece, on a beach in lassi. The rock is black in colour, smooth with thumb like prints, very metallic smell and very slightly magnetic. We took this rock to oxford ...
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Interpreting an outcrop of a thick pure silica bed in a volcanic setting

How can a nearly pure silica bed with 250 m x 50 m x 1.5 m dimensions be interpreted in a volcanic/pyroclastic setting? Here is a photo of it.
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31 views

What kind of efflorecence is this?

It occures in a tunnel under tens of meters of vulcanic deposits (mostly Thephra i think) at Herculaneum, Italy. Water seems to come from the surface, however the sea is near. It's level is lower ...
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99 views

How could have this rock formed? - Penny inside rock, mostly iron

I was walking along a beach (in Southern California) and found this rock on the ground, and there were none like it on the beach. It is composed of mostly rusted iron, and a magnet will stick to most ...
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74 views

What makes this rock cavities inside? What type of rock is this?

I found this rock in the rocky mountain near dried up river. Found it around pile of many rocks and this one was interesting and just want to know what makes this cavity stucture inside that rock? Its ...
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71 views

Please help identify this rock

Heavy green rock. Please help me identify it.
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97 views

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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110 views

What types of stone are these rocks I found in Scotland

Please could someone tell me what type of stone this is I came across it while walking my dog. I'm in the highlands of Scotland!
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66 views

Fossil or just strange lines?

Found this in Souris, Manitoba. The lines are on both sides. What could this be?
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34 views

Can anyone identify my rocks? Found in Arizona, I would be hugely grateful

Hey, I collect rocks from every holiday, but unfortunately I'm a complete novice and have no knowledge of rock at all, I found this with another strange few rocks from the grand canyon and the ...
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A chemical formation or constructed by microorganisms?

This mineral formation was at the side of a fresh water canal in Gürpınar, Van, Turkey. It was dug out from the bottom of the canal. It is very brittle. I know that the natural water sources in the ...
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60 views

What are the name of these stones?

There are some kind of stone, I collected them and I want to be sure of their identification.
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72 views

What kind of gem is this

I had got this as a kid and I am wondering if it is worth anything.
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87 views

What kind of round grey rock is this? Is it a fossil of some sort?

Help me identify this rock please and thank you
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109 views

Can someone help me to identify this rock/mineral?

This is a small piece of a bigger chunk (about 9kgs). Someone told me it might be meteorite since its heavy for its size and has shiny particles. Others told me it might me an iron ore (magnetite). ...
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Curious what this brittle whitish-tan rock is from New York

I live in northern NY 15 minutes south of Canada and west of Vermont. We have a stone wall on the property as it was farmer's field way back when. I was walking it and this rock caught my eye as I ...
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Theorist speculate about dozens of loud atmospheric booms across globe

Theorist speculate on the dozens of loud atmospheric booms across globe. Has any recognized institutions offered a plausible explanation as of now?
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193 views

What is this orange/brown crystalline stone that I found near a mining city in the Philippines?

I found this light colored orange rock with white parts on the road in the Compostela Valley area of the Philippines. The back of this stone has a rough surface and is not shiny. Still, there are ...
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76 views

What mineral is this green part of stone?

On my trip to Chamonix Alps I found this stone and I'm really interested what is this dark green mineral. Color of the stone is dark green. I can't break a bit of it and it seems very much ...
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92 views

Identifying circle of light in night sky

I was recently reminded of when, while with some friends 20some years ago, we happened to look up and see a circle of what seemed to be light (in the sky of course). The circle was "empty" (only the ...
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Any thoughts about this? Fossil? Some sort of relic. Bone?

Found in northwestern Oregon. Willamette valley.
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35 views

Caspian Sea oil deposits

Azerbaijan appears to have vast development in its oil sector. Images on google earth show oil platforms connected by road ways far out into the Caspian Sea of the coast of Baku. Why is the majority ...
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What type of rock is this black and brown rock found in Virginia caverns?

Found this rock deep in the Luray Cavern System, what is it?