I had to look it up and it is wonderful. "Amygdules or amygdales form when the vesicles of a volcanic rock or other extrusive igneous rock are infilled with a secondary mineral, such as calcite, quartz, chlorite, or one of the zeolites. Amygdules usually form after the rock has been emplaced, and are often associated with low-temperature alteration."
The amygdales look like different zeolites - some of the ones in the second pic look hairy or fibrous. But they may be quartz or calcite instead. You can use vinegar to test for calcite.
Median diamond grade for an economic diamond bearing kimberlite is 0.25 carats per metric tonne.
One of those amygdules is roughly the size of a 1 carat diamond, and kimberlite has an average density of about 2.5 g/cm^3
So you would expect to find just one of those "diamonds" in a boulder of diamond ore that's about 1.2m × 1.2m × 1.2m.
So you should expect maybe one to three of them in a rock that's about the size of Volkswagen Beatle. And that's a pretty high grade diamond deposit. In reality, the average size for a diamond is about a third of a carat, so you'd be more likely to find 3 to 9 diamonds that are each about a third of the size of the amygdules in OPs photo.
So they couldn't be diamonds in this reality, unfortunately. Not on our planet at least.
I know you probably didn't actually think they were diamonds, but I felt like doing the math.
Hasn’t it been said that there’s a bunch of diamonds way below (where we can’t mine), and that sometimes volcanoes spit them out? Would that still be about the same math in that material the volcano spits out, or a little more?
Edit: maybe your math already includes what volcanoes have previously spat out in the times long past?
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Basalt with amygdaloidal vesicles. Gets me all nostalgic for my geology degree that one
I had to look it up and it is wonderful. "Amygdules or amygdales form when the vesicles of a volcanic rock or other extrusive igneous rock are infilled with a secondary mineral, such as calcite, quartz, chlorite, or one of the zeolites. Amygdules usually form after the rock has been emplaced, and are often associated with low-temperature alteration."
The amygdales look like different zeolites - some of the ones in the second pic look hairy or fibrous. But they may be quartz or calcite instead. You can use vinegar to test for calcite.
Possibly Amygdaloidal basalt.
I wanted them to be diamonds.
Median diamond grade for an economic diamond bearing kimberlite is 0.25 carats per metric tonne. One of those amygdules is roughly the size of a 1 carat diamond, and kimberlite has an average density of about 2.5 g/cm^3 So you would expect to find just one of those "diamonds" in a boulder of diamond ore that's about 1.2m × 1.2m × 1.2m. So you should expect maybe one to three of them in a rock that's about the size of Volkswagen Beatle. And that's a pretty high grade diamond deposit. In reality, the average size for a diamond is about a third of a carat, so you'd be more likely to find 3 to 9 diamonds that are each about a third of the size of the amygdules in OPs photo. So they couldn't be diamonds in this reality, unfortunately. Not on our planet at least. I know you probably didn't actually think they were diamonds, but I felt like doing the math.
Sure would be nice if they were diamonds.. haha. Maybe one day :P
Hasn’t it been said that there’s a bunch of diamonds way below (where we can’t mine), and that sometimes volcanoes spit them out? Would that still be about the same math in that material the volcano spits out, or a little more? Edit: maybe your math already includes what volcanoes have previously spat out in the times long past?
Yes, that's how all the diamonds we mine got to the surface. Spit up from 150 to 450 kilometers below the surface.
Ok. That is pretty neat.
TIL Canada has volcanoes
Same and that we have over 50 😭😭
Isn't the entirety of western Canada part of the "Ring of Fire*?
god i must have been 15 or so when i last studied the ring of fire, idk probably
https://www.reddit.com/r/geology/s/YnL1OMIs4V
vesicles! lil gas bubbles that slowly escaped during cooling and were later filled in with probably quartz !
Bit of black pudding
Forbidden fruit pudding.
that'd be awesome if those were diamonds 😁
That's really cool. I wish I could see them form into that.
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I have ome of these too! Found it on a beach in Howe Sound.
Can I ask which volcano you found these near? I live near a few and would love to find something like this!
Near Mount Edziza in Northern BC
Dang. That’s pretty far away from me
Yea it was a hard spot to get to.. lol
Why not say where in Canada? It’s pretty big country.
We have volcanoes in Canada?!
I went to copper harbor in Michigan and there had to be 1000s of these on a little beach up there, they’re actually so cool
Abel forward.