r/meteorites

▲ 137 r/meteorites+1 crossposts

Fireball meteor (?) Mid-North coast NSW, Australia

Kiddo took this video a few minutes ago. It was in the air for ages! This was from near Taree looking north-east. Her friend is fishing on the coast and also got a great video of it.

u/tiranamisu — 1 day ago

Meteorite Classification

Hello meteorite enthusiasts. My grandfather recently passed away and my grandmother gave me this beautiful (suspected) iron meteorite. I don’t know much about it other than it was (allegedly) found in Eastern Colorado between 1995-2000 by his brother and it weighs about 70 lbs. I suspect that it may have another source, but no way to verify.

I would like to have it classified and maybe sell it to a collector but have had no luck reaching any of the labs here in Colorado. I’m hoping someone here can point me in the right direction or give me some advice.

Any help would be greatly appreciated!

u/killryan666 — 2 days ago
▲ 45 r/meteorites+3 crossposts

How to Find Urban Micrometeorites

They are the oldest solid matter in existence and have travelled farther than anything else. They form the building blocks of galaxies, planets, and even us. We are all made of stardust. For more than a century, scientists have searched for the mysterious micrometeorites, but they have been found only in extremely clean, remote locations, such as Antarctic blue ice, or, more recently, in space. 

>Full story<

u/TomaszNowakowski — 2 days ago

Realistic Meteor name ideas

I'm working on a game and I need to come up with a name for a meteorite that strikes earth but I have no idea how the naming works. Basically the sentence is "It's been nearly 20 years since (meteor name) struck earth. Can you guys help me?

reddit.com
u/Far_Wall_7139 — 2 days ago

I contacted AMS regarding the increase in fireballs.

I decided to contact AMS regarding the increase in fireballs due to my anxiety. I won't share the full email, but key line

"The meteoroid environment appears to be essentially unchanged; our ability to observe and document it has improved enormously. As more people become aware that the American Meteor Society documents these events, the number of reports has increased throughout the years. At a quick glance it appears that the number of fireballs are increasing, but it is actually the number of reports that is increasing."

reddit.com
u/Severe-Clerk-1477 — 4 days ago

Monthly Suspect Meteorite Identification Requests

Please submit your ID requests as top-level comments within this post (i.e., direct comments to this post). Any top-level comments in this thread that are not ID requests will be removed, and any ID requests that are submitted as standalone posts to r/meteorites will be removed.

You can now upload your images directly as a comment to this thread.

To help with your ID post, please provide:

  1. Multiple, sharp, in-focus images taken ideally in daylight.
  2. Add in a scale to the images (a household item of known size, e.g., a ruler, scale cube, banana, etc.)
  3. Provide any additional useful information (weight, specific gravity, magnetic susceptibility, streak test, etc.)
  4. Provide a location if possible so we can consult local geological maps if necessary, as you should likely have already done. (this can be general area for privacy)
  5. Provide your reasoning for suspecting your stone is a meteorite and not terrestrial or man-made.

You may also want to post your samples to r/whatsthisrock for identification.

An example of a good Identification Request:

Please can someone help me identify this specimen? It was collected along the Mojave desert as a surface find. The specimen jumped to my magnet stick and has what I believe to be a weathered fusion crust. It is highly attracted to a magnet. It is non-porous and dense. I have polished a window into the interior and see small bits of exposed fresh metal and what I believe are chondrules. I suspect it to be a chondrite. What are your thoughts? Here are the images.

reddit.com
u/AutoModerator — 5 days ago

These chondrules truly are wild. NWA 18571, an L3.15 Chondrite.

NWA 18571 is currently one of only 14 approved meteorites in the world classified as L3.15 by The Meteoritical Society. Meteorites of this type experienced extremely low thermal metamorphism, meaning they preserve some of the earliest and most primitive material formed in the early solar system over 4.5 billion years ago.

u/BullCity22 — 6 days ago

What’s causing so many large event fireballs? Should we be concerned?

The month of June has 7 100+ report fireballs on AMS. This is massively up from last year, and 3 in the last few days in Europe alone. I’m super paranoid but is this just random statistical variation?

reddit.com
u/Severe-Clerk-1477 — 6 days ago

Fair Price?

I’ve been eyeing some Muonionalusta meteorite pendants (rhodium plated) at a shop here in Prague and would love some input since I know basically nothing about meteorites — I just love the pattern!

Option 1: ~1.5–2 inches tall, priced around $140

Option 2: ~1 inch tall, priced around $80

Are these prices reasonable for the size? Any thoughts welcome — even if unrelated to pricing. Just want to make sure I’m not getting ripped off before I pull the trigger!

u/247Plantcollector — 11 days ago

There is a precedent of a large metallic asteroid landing on Earth without breaking apart.

The 60-ton iron-nickel slab, the Hoba meteorite, landed in Namibia less than 80,000 years ago. The Earth’s atmosphere friction slowed the asteroid to the degree that it impacted the surface at terminal velocity (around 1200 km/h), remaining intact and causing minimal excavation.

https://preview.redd.it/sh3p3qehth9h1.jpg?width=313&format=pjpg&auto=webp&s=aa1aa6a19eec17f8dd2415f8a021ce37c06c53fe

reddit.com
u/Own-Union-7797 — 10 days ago

Why a nickel test can fail on a real meteorite

I was inspired to make this video because someone in one of the FB groups posted a possible meteorite he thought was Gebel Kamil. It failed the nickel test and here’s why:
I ran a DMG nickel test on a Gebel Kamil iron three times, on three differently prepared surfaces, and got two negatives and a positive on the same piece.

Filed exterior: negative. Freshly sawn face: negative. A face I etched with ferric chloride: instant bright pink.

The reason is that DMG reacts with nickel in solution, not with solid metal. Clean filed or sawn nickel-iron is too inert for a plain drop to dissolve any nickel, so you get a false negative even on a high-nickel meteorite. The etch frees nickel into ionic form, so the reagent reacts at once. A negative result often just means the surface was never prepared, not that there is no nickel.

Worth keeping in mind before anyone writes off a suspect iron over a single failed spot test.

youtu.be
u/TC_Meteorite_Co — 10 days ago

BO chondrules of Daule

Non-porphyritic (Barred olivine) chondrules observed from Daule. They will look cooler if this was a thin section and a polarized light microscope was used which unfortunately I have neither of the two.
Daule is a stony L5 meteorite that fell in Daule City, Ecuador.
Chondrules like these are like time capsules to the solar system and give us information about the first few solid drops of the young solar system.

u/66391_Moshup — 13 days ago