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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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Found a white, glittery rock in the woods of Illinois. Help with identification?

Its mostly white, kind of grayish but not really. And it has little particles or minerals that make it look really glittery. Im really hoping its some type of quartz rock or it at least has quartz in ...
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1answer
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Rock ID: 2 layer, hard dark brown top, sandy light orange bottom, Southern Utah redrock country

Dull luster, with 2 main layers: TOP) about 1 cm thick, plate-like, dark coffee brown, bubbly melty looking texture. The top layer is harder (about a 5, scratched with a knife) and the edges are ...
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1answer
26 views

Please help me identify this rock. Thanks! [on hold]

I found this rock in our home and I was curious, about the type and background of the rock. We live in the Midwest. Any information would be greatly appreciated.
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16 views

What is this smooth flat black rock? [on hold]

I am trying to identify a rock for my school project/ my rock is smooth, flat and shiny. It closely resembles a pebble in shape. I believe that it is very strong and doesn't leave powder when ...
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33 views

I found a large 3925lb rock [on hold]

It,s almost totally round a little Oval shape. It's close to old volcano's I did weight it and it weight's 3925 lbs, it's about 3 ft tall There was another one found in the same area I was ...
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2answers
357 views

What are these Gizmos at Izaña Atmospheric Research Center in Spain?

This tweet from the account of the Centro de Investigación Atmosférica de Izaña (AEMET) http://izana.aemet.es Izaña Atmospheric Research Center (AEMET) shows images of meteorological instruments ...
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1answer
27 views

Found a rock like no other [on hold]

identification request This rock was found in Somerset Co, NJ. It weighs about 10 lbs. It was found buried about a foot under a patch of daffodils in the middle of the woods. It is triangular in shape ...
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Found rock please help identify [on hold]

Hi found this rockhounding It has metal and gold shyne in body any help would be wonderful Pic is of a window Thank you
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Weird looking rocks/fossils? [closed]

I found these two pieces while arrowhead hunting in northwest Ohio. I’ve never seen anything like it before, I’m not sure if it’s petrified wood or some sort of fossil. Any help would be greatly ...
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2answers
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Rock Identification: clear, hues of yellow/orange. Washington State

I purchased this rock at an estate sale along with some rose quartz. The sellers had no information on it. My husband was able to break it today with a hammer, but I have no idea what the material is. ...
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1answer
55 views

Id request: Unusual shape, gritty texture hard rock

What are these rocks? We are importing dirt from local pool companies digging in the area. We live denton, tx (north texas). One company dumped about 4 loads of very red sandy loamy dirt and 3 loads ...
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1answer
468 views

Identification of a rock from Kentucky [closed]

I was hiking the other day in southeastern Kentucky and ran across this rock on a river bank. I've never seen a rock like this before. Can anyone here identify it?
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1answer
41 views

Anyone have any idea what these are? [closed]

Can someone please help me identify these rocks please ](https://i.stack.imgur.com/y28zy.jpg)
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1answer
48 views

Help me to identify this strange rock [closed]

About 9 years ago I found this rock in the middle of the river. It reminds me of a some kind of a volcanic rock, but I live in Finland, and we only have dead volcanoes around here. Outer layer is just ...
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0answers
58 views

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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1answer
42 views

Please help me identify these two metal looking rocks…?

These were found at to the top of a hill by McLaren park near the Blue Water Tower in San Francisco, in the dirt in the middle of the path. They feel slightly heavier than normal (same size) rocks. ...
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1answer
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Dark green opaque stone of length < 1 inch

Found it on a construction site. What kind of stone it is ? I understand that it is not gemstone. It is very hard, cannot be scratched by metal, and it's smooth. Also there is no visible layers. It ...
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0answers
43 views

Artifact? Found in US North Carolina close to Morrow Mountain State park [closed]

Scale in inches. I found this in a river. One surface of it (narrow surface) is so flat that I couldn’t quit looking at this find.
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0answers
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Hi! Can anyone help me to find what type of rock this might be

Hello, this rock was found on a hike near a stream of water at Eaton Canyon in Altadena, California. The rock seems to be made of layers that when hit against the concrete floor will break apart into ...
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1answer
61 views

What is a Rotating Shadowband Radiometer, and how does it work?

This answer explains that the device labeled "B" in the photo below is a "Ultraviolet Multifilter Rotating Shadowband Radiometer." What is a Rotating Shadowband Radiometer, and how does it work? ...
2
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1answer
124 views

What are these Gizmos at Mauna Loa Observatory?

Artist Rosten Wu's Vimeo channel has a video title Bridging Time and there is discussion about the Keeling Curve and the site where it all began in Hawaii. In the video there is a shot of a weather ...
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2answers
53 views

Can anyone identify this stone

i found this stone on the east coast of south island in New Zealand, it's 200 grams and very hard,i used a metal file on it and it left steel residue on the stone.
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1answer
36 views

rock id:hard,green,other ones were around but not with black streaks [closed]

Located in vermilion river Lasalle Il. It is a green and has black streaks with what looks like air bubbles at the end.
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3answers
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how can a asterisk/star like crack occur on a rock?

how can a asterisk/star like crack occur on a hard pyroclastic rock? Could it caused by a meteroite or by some other mechanism? You may see the shape of the rock on attached photo.
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37 views

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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1answer
109 views

Is this Dragon Jasper?

Bought these rocks at a shop they were selling as Dragon Jasper,but when I density tested them they were 3.09 which I thought was a bit high for Jasper, and generally Dragon Jasper has Deep red veins, ...
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1answer
43 views

Is this an agate? [closed]

So I have found these in a creek there are some that look like this and I have broke them open and they were full of crystals these seem to small and I have tried cracking then and they wont budge I ...
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1answer
52 views

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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1answer
102 views

Can someone please help me identify my rock?

I found this rock under water over 20 years ago while swimming in Lake Huron near Kincardine, Ontario. It’s a little smaller than a baseball although it is very dense and a lot heavier than it looks. ...
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1answer
39 views

I found this rock on my property years ago and was curious what it was [closed]

What kind of rock is this? I found it on my property a long time ago and I can pinpoint exactly what. I was thinking red jasper maybe?
5
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1answer
59 views

Identification of limestone type

These are images of a stone found and used extensively in the Jammu & Kashmir region between India and Pakistan. These are called devir or devri in the local parlance. Following is the ...
3
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1answer
57 views

What do the little flags on these martian wind speed data points mean?

According to this answer the weather at the InSight lander on Mars can now be seen online at https://mars.nasa.gov/insight/weather/ This includes the wind speed and I believe the direction (if that's ...
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1answer
37 views

can you help identify my crystal [closed]

it is green is color With silky luster Hardness is about 7 Found in lake Elsinore mountain s
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1answer
131 views

Found this rock in Cambridge, UK, on a recently ploughed field

I found this rock while out walking it’s of a metallic Luster and black in colour, smooth to the feel but bumpy in places, with one small rough patch shown on the picture and no colour change anywhere....
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1answer
86 views

Please identify this rock

I found this rock along the Illinois river basin in cave junction, oregon. It was laying on the top layer of a massive beach of rock. It's shape is what drew me too it, then after closer inspection ...
2
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1answer
70 views

Metallic Balls Found in Sandstone or Mudstone Layer

Found metallic balls of some type of metal ore surrounded by yellow mudstone the metallic balls crush easily into a fine gray powder. The gray balls are situated between sandstone layers in a soft ...
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53 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. ...
3
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1answer
89 views

I found this near Charmouth, UK. Seems to be metallic

It's somewhere between 5.5 and 7 on the hardness scale Feels very heavy Cold to the touch Doesn't clean up with water, vinegar or alcohol Small bumps on the surface all over
2
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0answers
46 views

Identify rock found on beach in Florida [closed]

This rock was found in Florida on the beach on top of the sand. There were no others found. Color of rock is white, the outer rim is clear (see through) the inner layer is solid. The inner layer is ...
2
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1answer
77 views

Could this rock be Basalt?

This rock is 2 3/8", weighs 71 grams has a density of 2.958,I tested the density a few times and its always 2.958, has a hardness of 6-7 almost clear streak test, I tested the streak again and I would ...
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1answer
40 views

Identify rock, found in Florida

Round with crystal looking around it, hard. Seems to have layers in the center. The inside is smooth and the outside layer is textured. The white layers go all the way through the rock. Found on the ...
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0answers
29 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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1answer
139 views

What is this green yellow heavy stone?

no known origin,its opaque its 2 1/4" leaves no streak, has a hardness of 6-6 1/2 I drilled it with a diamond plated bit,it is a very tough stone.It weighs 2ozs 56.6 grams.When I drilled it the powder ...
3
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1answer
106 views

What kind of lava tube feature is Cleopatra's Grave?

Cleopatra's Grave is a natural feature inside (warning: PDF) Catacombs Cave in Lava Beds National Monument near Modoc, California. Source: LookBeforeYouLive My apologies, as this image is somehow in ...
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1answer
60 views

Help identify my redbrown rock with crystal like formation on the inside

This rock is red/orange/brown in color. It is slightly clear/translucent when held up to light. Will not scratch with a knife. Has a crystal like structure on the inside.
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0answers
96 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 ...
2
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0answers
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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1answer
54 views

Mineral/rock identification [closed]

I found this rock in the Himalayan region in India. It was on the roadside of a hill that we were trekking. It has a silver lustre. It has a hardness of 5.5(I can scratch it with a knife blade).it has ...