
u/geologic-collector

Real Tektite vs Pseudotektite (false tektites)
Left is an Indochinite from Vietnam, the one at the right is an Agni Manitite from Indonesia.
As what you can see, Agni Manitites share a bit of similarity with its fellow pseudotektite Saffordite from the US. They are commonly marketed and mistaken to be real tektites as they resemble one. My Agni Manitite resembles a Muong-Nong type of tektite if not backlit. Agni Manitites are volcanic glass, not impact related, in contrast to the real tektites, which are non-volcanic, but impact related.
My Petoskey Stone (Michigan State Rock)
Found in 2023 and polished just months ago, huge around 300-400 g mass. The other popular rock from Michigan is the Charlevoix stone, that being a Favositid tabulate coral. Petoskey stones are Hexagonaria percarinata, though species may vary and they are colonial rugose corals.
Mud volcano just yards from my backyard
It is cool, scary and amazing at the same time. My mum found this thing just yards from our backyard into the woods when she was like 5 or 8 years old in the 1970s. Mud volcanoes erupt a slurry of mud, water and gas (usually methane) and they are false volcanoes as they don’t erupt igneous (volcanic) matter. They may also get help from nearby volcanoes for erupting the mud out like for the example of Suoh and Yellowstone mud volcs. Pressurized underground gases and water force the fine sediment (mud) out.
Since methane is a combustive gas, when you have a lighter or anything that sends off a spark strong enough to ignite something, it will do on mud volcanoes as well, shown in the first and third photo. Interestingly, plants and trees are so near to the mud volcano.
Mud volcanoes are not necessarily hot or warm, there are some cold mud volcanoes, they usually rely on the pressure of water and gas, if the ground can’t hold the pressure, it creates a crack first and eventually forming a mud volcano, such as what happened to a town in Trinidad and Tobago (forgot the name of the mud volcano).
This mud volcano in my post usually erupts effusively, meaning mud just flows time to time out of the mud volcano’s crater. Sometimes it is dormant (temporarily inactive or “sleeping”). Effusive eruptions are just calm, flowing eruptions, explosive ones are violent, large scale eruptions. During its dormant times, the mud volcano looks so dry.
Some historic/rare class carbonaceous chondrites🙂
Of course who will forget about Murchison if we’re talking about historic mets? One of the most well-studied mets of all time. Aguas Zarcas is a much recent and therefore, pristine version of Murchison, fell in Costa Rica and hit homes and tore through the roof of a dog house! (Dog was ok)
Ivuna is the mother of all CI-type chondrites like Orgueil, Alais and Tonk, many more. Rare class and historic as well. Fell in Tanzania, 1938.
Vigarano on the other hand is the mother of all CV-type chondrites like Allende, some NWA and Dar al Gani mets. Italian meteorite, fell 1910, rare and historic like Ivuna.
Tagish Lake and Tarda are within a rare class of carbonaceous chondrites being ungrouped with an aqueous alteration at 2. They are extremely porous, sensitive to terrestrial weathering and crumbly.
My whole fossil collection so far
consists of 215+ individual pieces
PS. Some fossils may be incorrectly named, not updated or don’t have names yet. TBC.
video is about a woman in a zero gravity environment showcasing the Dzhanibekov effect.
Here are photos (NOT MINE, credits to M. Żmija) of the meteor witnessed by locals in Poland on the night of April 17, 2026 (20:53:59 Local Time, 18:53:59 UT).
A specimen with a mass of nearly 3 kg was found by A. Walczak and P. Walczak in the Zadzim municipality.
Here we can see the image from a surveillance camera (Photo 1); the meteoroid’s path (Photo 2) and the amazing flow lines (last photo).
Thanks to the Skytinel Project, the retrieval of the meteorite was made possible with the help of the meteor’s trajectory done by our researchers.
Edit:
It’s an unclassified iron meteorite, check out those flawless flow lines!