These types of huge perfect specimens always take my breath away when I am able to see them in person. To think that this kind of stuff just kinda exists buried in the earth...
I am a part of a local mineral club which hosts several "field trips" a year to various mineralogically interesting locations (most of which aren't accessible as an individual, like private land and special digs at active mining/quarrying sites on their days off). I have never found anything even remotely as beautiful as the specimens shown, but the small collection of mildly interesting things that I've smashed out of the earth with my own 2 hands is amazingly satisfying to me. You don't even have to be a super dedicated "rock nerd" to take part, I highly recommend looking for local mineral clubs to join if this even remotely interests you. It's really a ton of fun!
That’s what really sucks about rockhounding as a hobby. In the US we have a blessing of public BLM lands where we can collect, especially in the West, but most of the interesting specimens in museums and fancy collections come from mines or some unique geological occurrence on private land. Getting them requires dropping lots of money or getting into commercial mining. The best most of us can really hope for is some small piece from tailings.
There are a few species you can sometimes find in washes when they get buried during massive floods, but other than that most museum quality specimens are impossible to find for rockhounds.
I still bring my trusty Estwing rock hammer everywhere but it kind of takes the wind out of the treasure hunting aspect.
> There are a few species you can sometimes find in washes when they get buried during massive floods, but other than that most museum quality specimens are impossible to find for rockhounds.
Well, that's kinda how it has to be, right? If art museums displayed the artwork anyone can paint, they wouldn't be interesting to most people. Most museums are about displaying the stuff you otherwise wouldn't be able to find, buy, or make. It's still fun to learn to paint, even if you're no Rembrandt.
To be fair, there are some museums that go for depth instead of scarcity, and I personally find them more interesting because they need to put more work into their exhibits. It can't be just "look at the thing you couldn't possibly have", it's more "yeah, it's a trivial item but here are all the cool details you've never considered or knew about". The Computer History Museum does this pretty well. They have some truly unique items, but also plenty of stuff you can buy on eBay, just presented and explained well.
Finding specimens is not that hard or inaccessible if you are determined. Virtually any place on earth has its own geomorphology history. Start by looking at geological maps to learn what kind of rocks/minerals you can find in your surroundings and look for old/active mines, quarries or any activity that excavates soil, etc. Specimens can be found sometimes in land deposits from these activites.
Kind of fun to think that the crystalline structure of minerals is an "echo" of their arrangement of atoms. A repeating pattern on a scale we can actually observe.
I've been to a few mineral museums like this and one of the interesting ones you can come across is Asbestos. Just hanging out there on display right next to some other mineral. It forms beautiful formations just like the rest, but I've heard so many mesothelioma lawyer commercials that it's easy to forget it's a completely natural material. Also one you can pick apart like cotton and weave into a fabric - it's a flexible material, made out of a rock, which can kill you.
The asbestos formations are ones they keep behind glass.
We used to have asbestos rocks sitting around in our house when I was growing up (my mother was born a raised in the town formerly called Asbestos, QC). You could just peel the fibers off the rock. In that form the asbestos is harmless: it's only when it's chopped into shorter fibers and inhaled that it's seriously unhealthy. Industrial uses almost always chopped the fibers so almost no commercial products using asbestos are safe, but the rocks just sitting there are harmless.
Especially since it's an exception that breaks the rule that straight lines are not found in nature. Not only is it a straight line, but a cube. They just look unnatural. Very cool stuff
True, but among the minerals with cubic crystal structure it is not unusual for them to be found as crystals that are perfect regular or semiregular polyhedra, with a shape characteristic for the mineral, for instance octahedron (e.g. spinel, diamond), rhombic dodecahedron (e.g. garnet) or cube (e.g. pyrite).
I suppose that the crystals from the picture are of pyrite, which frequently looks like this.
In the antiquity, when what are now called diamonds (the Romans and the Greeks called them "Indian adamants", because they were first encountered by Europeans during the expedition in India of Alexander the Great; "adamant" meant something else in Europe) were very difficult to cut and polish, they were normally used as gems in their natural shape of regular octahedra.
Cutting diamonds from their natural octahedral shape into polyhedra with more facets, e.g. brilliant, was invented much later.
Regarding etymology, for many centuries the substances that are now called "sulfides" were called "pyrites", after the "iron pyrite" i.e. the iron (II) disulfide, which is the most abundant sulfide mineral.
At the end of the 18th century, Lavoisier together with a few other French chemists have created the modern systematic chemical nomenclature, so the old term "pyrite" was replaced by "sulfide" (like also "vitriol" was replaced with "sulfate").
For who does not know, "pyrite" comes from "fire", i.e. from the pronunciation in Ancient Greek of the corresponding word that was cognate with English "fire" (Ancient Greek or Latin "p" corresponds with English "f").
Striking pyrite produces sparks, which can be used to start a fire.
If "dead" things look this much alive, imagine how hard it is to determine life on other planets. Real life could look much more dull than these things :-)
oh my god, this is gorg. i love museums for the same exact thing. there's so much you donno and every visit just leaves me in awe. thank you for sharing it. big wide bful world
First thought in my head was that these would make great demos for 3DGS: both geometry and light interactions are non-trivial. I imagine that makes them difficult to capture with traditional photogrammetry
That’s fine, but you don’t have to be a deist to appreciate the title. Moby named one of his songs “God Moving Over the Face of the Water.” The author chose to use a metaphor many of us are familiar with, and even some atheists connote “God” to the mysterious existence of the universe, symbolic to the many collisions of stars that led us here.
I can get behind a God that just makes cool rocks.
Gabriel: "Hey, God, what's doing?"
God: "Oh, well, I just got a big lump of boron so I'm trying to get it to crystallise out with all this silicon and alumina. If it works I think I'll have the tiny people call it 'tourmaline'. Yeah, look at that stuff, look at it go!"
The shamans would test your ability of spirit by qualifying if you "Know the Stone People". They are the oldest beings, the keepers of deep wisdom and knowledge.
I am a part of a local mineral club which hosts several "field trips" a year to various mineralogically interesting locations (most of which aren't accessible as an individual, like private land and special digs at active mining/quarrying sites on their days off). I have never found anything even remotely as beautiful as the specimens shown, but the small collection of mildly interesting things that I've smashed out of the earth with my own 2 hands is amazingly satisfying to me. You don't even have to be a super dedicated "rock nerd" to take part, I highly recommend looking for local mineral clubs to join if this even remotely interests you. It's really a ton of fun!
There are a few species you can sometimes find in washes when they get buried during massive floods, but other than that most museum quality specimens are impossible to find for rockhounds.
I still bring my trusty Estwing rock hammer everywhere but it kind of takes the wind out of the treasure hunting aspect.
Well, that's kinda how it has to be, right? If art museums displayed the artwork anyone can paint, they wouldn't be interesting to most people. Most museums are about displaying the stuff you otherwise wouldn't be able to find, buy, or make. It's still fun to learn to paint, even if you're no Rembrandt.
To be fair, there are some museums that go for depth instead of scarcity, and I personally find them more interesting because they need to put more work into their exhibits. It can't be just "look at the thing you couldn't possibly have", it's more "yeah, it's a trivial item but here are all the cool details you've never considered or knew about". The Computer History Museum does this pretty well. They have some truly unique items, but also plenty of stuff you can buy on eBay, just presented and explained well.
The asbestos formations are ones they keep behind glass.
https://crystalverse.com/best-way-to-grow-copper-sulfate-cry...
Crystal growth has been on here before. Let me see if I can find a link or two...
https://news.ycombinator.com/item?id=31105320
https://news.ycombinator.com/item?id=30487511
https://news.ycombinator.com/item?id=29779923
https://news.ycombinator.com/item?id=29255511
I suppose that the crystals from the picture are of pyrite, which frequently looks like this.
In the antiquity, when what are now called diamonds (the Romans and the Greeks called them "Indian adamants", because they were first encountered by Europeans during the expedition in India of Alexander the Great; "adamant" meant something else in Europe) were very difficult to cut and polish, they were normally used as gems in their natural shape of regular octahedra.
Cutting diamonds from their natural octahedral shape into polyhedra with more facets, e.g. brilliant, was invented much later.
At the end of the 18th century, Lavoisier together with a few other French chemists have created the modern systematic chemical nomenclature, so the old term "pyrite" was replaced by "sulfide" (like also "vitriol" was replaced with "sulfate").
For who does not know, "pyrite" comes from "fire", i.e. from the pronunciation in Ancient Greek of the corresponding word that was cognate with English "fire" (Ancient Greek or Latin "p" corresponds with English "f").
Striking pyrite produces sparks, which can be used to start a fire.
They’re not expensive
https://www.science.org/content/article/how-do-wombats-poop-...
Where the gems are in plain sight!
https://www.hmns.org/exhibits/cullen-hall-of-gems-and-minera...
(Post Malone’s response in a Joe Rogan interview when asked about McKenna’s Stoned Ape Theory)
"They are not rocks, they are minerals marie"
https://tellusmuseum.org/exhibit/weinman-mineral-gallery/
I don't see any god though, but I think I saw godzilla hiding in one of those shapes.
"The first gulp from the glass of natural sciences will turn you into an atheist, but at the bottom of the glass God is waiting for you."
Gabriel: "Hey, God, what's doing?"
God: "Oh, well, I just got a big lump of boron so I'm trying to get it to crystallise out with all this silicon and alumina. If it works I think I'll have the tiny people call it 'tourmaline'. Yeah, look at that stuff, look at it go!"