Questions tagged [identification-request]

For help in identifying objects such as clouds. Please include as many details as possible. DO NOT ASK ROCK IDENTIFICATION REQUESTS — rock identification requests are off topic.

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5
votes
1answer
335 views

What are the circular features in this rock? [closed]

I found this rock by the shore of Lake Ontario. It's light weight and it was grouped with some other rocks with the same patterns.
3
votes
1answer
756 views

What kind of rock is this? [closed]

We found this today in Acton CA USA. Would like to know what it is.
4
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2answers
2k views

What is this silvery rock? [closed]

I found this silver-colored rock on Mount Shasta. It has these features: non magnetic sharp edges when light hits it shows the colors of the rainbow its not too heavy Can you identify it?
7
votes
3answers
2k views

How was this egg shaped rock made and what is it? [closed]

The following small egg-like rock was found laying on the ground in Tampere, a city in southern Finland. It weights about 950 grams, has a volume of about 360 cm3 and thus a density of about 2600 kg/...
4
votes
1answer
494 views

Rock ID: a glassy, black, translucent mineral [closed]

Hardness : it barely scratches glass, can't scratch gorilla glass of my lg g2 Transparency : translucent, you can see the flashlight of a smart phone. Luster : it has glassy luster. Shiny surfaces. ...
8
votes
2answers
2k views

What is this blue rock? [closed]

I am trying to identify a rock my husband found.The rock was found in Columbus Ohio about 20 feet (6 m) down. It is about the size of a basketball and extremely heavy (90 lbs) and difficult to cut ...
3
votes
2answers
752 views

What is this white rock with black speckles throughout? [closed]

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 ...
3
votes
1answer
90 views

What rock is underneath malachite [closed]

I recently bought a large piece of malachite, for the purpose of trying to extract the copper. The piece looks like this. I would like to identify the rock, because I would ideally dissolve it in ...
0
votes
1answer
109 views

I found this rock on my way home and have done some research and only found one picture that relates to this rock, WHAT IS IT? [closed]

I have found this strange rock on my way home it piqued my interest so I picked it up did some research and found little to nothing. Might be related to shale not sure though. What is this strange ...
2
votes
1answer
76 views

What is this figurine made of: [closed]

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?
1
vote
1answer
307 views

Metallic rock identification from Ontario Canada [closed]

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 ...
6
votes
1answer
803 views

Rock identification: meteorite or lava? [closed]

I was told by a crystal quartz store owner it was a type of lava rock but I have high doubts. hardness: diamond size: 4'' $\times$ 4'' weight: 1.5 lb location: unknown smell: sulfur trait: ...
5
votes
2answers
173 views

Rock Identification: clear, hues of yellow/orange. Washington State [closed]

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. ...
3
votes
1answer
84 views

Id request: Unusual shape, gritty texture hard rock [closed]

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 ...
1
vote
1answer
95 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 ...
2
votes
1answer
77 views

What is this translucent and blue vein crystal, 7.5 < Mohs < 9, Lustre: Aventurescence [closed]

It looks like quartz, but it has blue veins on the surface that look died. Not all surface scratches are blue though. Hardness: > 6.5. Nail file will not scratch it. > 7 quartz will not scratch it. >...
1
vote
2answers
120 views

Can anyone identify this stone [closed]

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.
7
votes
0answers
171 views

Rock ID: brown, magnetic inclusion in Carpathian amethyst geode [closed]

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 ...
3
votes
0answers
5k views

What is this black, shiny, smooth, kind of heavy, metallic rock? [closed]

Its kind of heavy for it size, though not extreme - about two pounds. Looks like a chunk of metal, but not quite sure what it is.
3
votes
0answers
68 views

What is in this rock? [closed]

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. ...
2
votes
1answer
139 views

Could this rock be Basalt? [closed]

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 ...
2
votes
0answers
120 views

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

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 ...
0
votes
1answer
58 views

What type of crystal is this? [closed]

I feel like it's clear quartz that had been ripped from a cluster. However, I haven't seen this before, so I'm not sure. Can anyone confirm or correct me?
5
votes
1answer
375 views

What is this yellow stone [closed]

I found this yellow stone in a creek.It was easy to break by slamming it against another stone and has evenly spaced crystal clear grains.They are very clear that under the sun I thought that water ...
2
votes
1answer
182 views

What type of rock is this, Nephrite? [closed]

Its a very dark green opaque smooth rock, resists stainless knife blade 6.5-7 hardness, its 4x2cm, aprox 40 grams weight. I found this rock among cobble stones in County Roscommon Ireland.Its not ...
2
votes
1answer
202 views

What is this red, brown and yellow rock? [closed]

I have no clue its origins. I believe it is from somewhere in the USA. It feels light for its size. It did not scratch with the knife test.
2
votes
2answers
157 views

What two mineral/stones are these that formed together? [closed]

NEW EDIT. I took a sharp knife and scratched at the orange/amber area. The area the blade tip went across would develope a faint white mark; however if I licked my finger and wiped the mark it ...
0
votes
1answer
76 views

Carbonaceous Chondrite [closed]

Can you please help me identify this rock? Is it a meteorite; if so, what kind? I sought the advice of the only scientist I know, but geology is not his primary field. He suggested a mineralogist ...
5
votes
1answer
163 views

Identification: mystery rock with golden features and shimmer [closed]

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 ...
6
votes
1answer
175 views

Identify yellow-tinted translucent mineral [closed]

I found a mineral near the hexagonal rock formations in High Island, Hong Kong that I'd like to get ID'd. It has a greasy and subadamantine lustre. It can scratch a U.S. Quarter Dollar and some types ...
1
vote
1answer
129 views

Need help identifying this rock [closed]

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 ...
0
votes
1answer
118 views

Rock ID - Heavy, Smooth Gemmy Rock from river in the Laurentian area of Quebec, Canada [closed]

I have recently become passionate about rocks, minerals and semi precious stones, found in many of the rivers and lakes where I live, in the Laurentian area of Quebec. I found this rock in a little ...
1
vote
1answer
104 views

What is this rock. Solid, Heavy, Metallic. Unknown origin [closed]

A few weeks ago i found this rock in the geology collection cupboard that my Geography teacher inherited from his predecessor. It is numbered 3729 but no list exists of the collection so we can not ...
4
votes
1answer
311 views

ROCK ID: Near Big Bend National park, hard on outside, soft inside [closed]

I found this on a hike in Terlingua, Texas, near Big Bend National Park. It can't be scratched on the outside shell, but the white part on the inside is scratch-able with a knife. It is heavy.
2
votes
1answer
301 views

Help Identifying this rock with a rainbow [closed]

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
3
votes
0answers
120 views

Identification of a rock. White marble? [closed]

Could you please help me identify the rock found commonly near many of the ancient Greek foundations and rubbles? This one was at the base of Poseidon's temple. White in colour with a smooth texture ...
2
votes
2answers
2k views

What is the identity of this heavy, smooth, shiny black and red rock? [closed]

. It's very shiny and layered. It has rough texture but spots with smooth red colored pieces.
1
vote
2answers
87 views
3
votes
1answer
332 views

heavy, brown, rock with crystals, please help identify [closed]

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 ...
7
votes
1answer
379 views

Mineral Rock Identification [closed]

Went out hiking after some heavy rains and came across an area that looked like broken glass sticking out from mud. On a closer look this is what we found. Not sure what it is and would like to know ...
6
votes
1answer
550 views

What kind of stone is this? Green tourmaline, or something else? [closed]

I was looking near mountain rivers for stones that I know like quartz, calcite, jasper. By chance on the top of the ground there was this one. It's a silky lustre semi translucent green-yellowish, ...
1
vote
1answer
51 views

What are these objects found on my property in Merced, CA? [closed]

These objects were found on my property when preparing for the replacement of a cement driveway. I would like to know what they are and, if possible, how they arrived at the place found?
2
votes
1answer
402 views

Please identify this pink transparent stone? [closed]

Pink transparent stone it maybe obsidian but my research indicates pink colour is very unusual for obsidian It’s translucent, all pink, slightly refractive you can read letters through when stone is ...
1
vote
1answer
525 views

Are these rocks raw jet? [closed]

Found these on the beach after some high tide and flooding thanks to a storm. Wondering if it is jet. One is much larger than the other. The smaller of the two is harder. The larger rock flakes when ...
3
votes
2answers
190 views

Help me identify this pink stone sphere that I bought [closed]

I found this amazing sphere in an oddball shop the other day, and the shop owner and I were guessing it may be Rhodochrosite or Rhodonite. It looks more brown in the photo than it truly is - it's ...
1
vote
1answer
103 views

Can this rock be identified? [closed]

Hey all, I came across this rock in a river in Western New York. There are two different parts of this rock. There are smooth, rounded parts that are brown to red in color. Their is a slight luster ...
1
vote
1answer
96 views

Glacial erratic - Granite or Gneiss? [closed]

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 ...
5
votes
1answer
169 views

Hollow tubular ferromagnetic rock? What is this? [closed]

I'm hoping others can help me identify this odd looking hollow rock/mineral/metal thing. I'll give pictures, then a video, then some other helpful info. First, here are some pictures. It's roughly 10 ...
1
vote
1answer
514 views

What are these inclusions inside this Rainbow moonstone? [closed]

I got this rainbow moonstone from Jaipur, India. The front and back are polished, has black tourmaline around it’s edges, and is 25x28mm. I didn’t notice it when I bought it but It seems to have ...
3
votes
1answer
126 views

What's this mineral? [closed]

I'm 99% sure I got it in California on base while walking near the airstrip so it could have come from litterly anywhere. I can't seem to break any pieces off. It's kinda heavy for its size and hard. ...