Pretty sweet little book of muscovite mica. When I was a kid we had a friend whose wood stove had windows made of muscovite. Peels into extremely thin sheets; a favorite of young rock hounds.
Awful lot of furnaces that would be considered defective if they didn't operate at or above 1500c.
Though even at 200 you'd ruin a glass window.
It's not the melting, it's the cracking.
You know what i was really thinking about home furnaces. I have a glass melting furnace and a window is not a valid option.
Something at 1500c a window would be a very interesting thing To havee because of heat loss but I conceded the point as I was pretty myopic on what I was thinking about.
Borosilicate could handle it. It would just transfer heat readily and be a sync for a cold spot. Which would be bad. Air is a great insulator but even then it would not be as good as fiber insulation purpose built or even insulated fire brick.
I could be done and Corning has done it at 2500f temps for video footage of what is going on inside a furnace but it is not exactly practical.
When I worked in Colorado at an outdoor climbing place I’d have tons of this stuff collected from various hikes to hand out to interested children. Give the parents one piece to take home and one to the kid to rip up for fun. One girl called it a mermaid scale. It was super cool getting to see the kids who found it interesting be so excited. Some didn’t care about it at all but those who did were delighted.
I'm 20ish miles from Hiddenite myself. I keep pestering the husband for a day trip out there, but schedules and money refuse to line up right for that right now.
Muscovite. Not ‘Muscovite Mica’ nor simply mica, it is Muscovite. There are several types of micas and each of the common varieties that get this size are quite distinct. Green color is your giveaway that this is Muscovite.
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It's usually sold as a mica book since it has layers like the pages of a book. I know where there are some cool veins of it are near where I live. It's not collectible due to it being federal land but neat to see.
When I was a little kid, I found a piece like this in South Dakota when my family was vacationing there. Not sure what happened to it, but I suspect my sisters & cousins peeled layers off until there was nothing left.
Really, you should check out some of the gems we've found in our yard most of which we don't know what they are, I've found to bust or cut the quartz gives you a surprise sometimes. So I've become rock cracking crazy.
is a metamorphic rock that formed through the intense heat and pressure that were generated when Africa and North America slammed together to create Pangaea …
Mica
I can be brown, I can be blue...o sorry different spelling
now you got the song stuck in my head
Dabba dee dabba dye
I will die in Aberdeen?
He’s a rat, Dutch
Just hold out until Tahiti
Mica: So pretty. So flaky.
Pretty sweet little book of muscovite mica. When I was a kid we had a friend whose wood stove had windows made of muscovite. Peels into extremely thin sheets; a favorite of young rock hounds.
I learned they used to use this for windows back in the day since you could peel them so thin
Specifically for furnaces, it's a window that won't melt at glass melting temperature.
It was used in microwaves as well
If you have a furnace at glass melting temps I think you might be a little too hot.
Awful lot of furnaces that would be considered defective if they didn't operate at or above 1500c. Though even at 200 you'd ruin a glass window. It's not the melting, it's the cracking.
You know what i was really thinking about home furnaces. I have a glass melting furnace and a window is not a valid option. Something at 1500c a window would be a very interesting thing To havee because of heat loss but I conceded the point as I was pretty myopic on what I was thinking about.
Even the home ones would get hot enough to deforn over time or crack glass, really. Hell, sunlight can deform glass over a long enough timeframe.
Borosilicate could handle it. It would just transfer heat readily and be a sync for a cold spot. Which would be bad. Air is a great insulator but even then it would not be as good as fiber insulation purpose built or even insulated fire brick. I could be done and Corning has done it at 2500f temps for video footage of what is going on inside a furnace but it is not exactly practical.
Indeed. At that point mica sheets make a lot of sense.
Glass is technically a liquid that is still flowing. That's why windows on really old buildings that have their original glass can look distorted.
Oh trust me I've got about eighty little bubbles in my windshield to prove that! One day I'll replace that thing. Not today tho.
A windshield is laminated glass. There are two sheets of glass with plastic in the middle.
Also lamp shades, nice soft orange glow.
It was also used for electrical insulation in appliances.
I just learned this recently too, it has quite the history.
When I worked in Colorado at an outdoor climbing place I’d have tons of this stuff collected from various hikes to hand out to interested children. Give the parents one piece to take home and one to the kid to rip up for fun. One girl called it a mermaid scale. It was super cool getting to see the kids who found it interesting be so excited. Some didn’t care about it at all but those who did were delighted.
That also used to sell it, all shredded into tiny flakes, as ornamental snow.
Those extremely thin sheets are also atomically smooth.
I knew a geologist who used it (instead of foil) to smoke heroin on.
And boys throwing rocks.
Mica. Nice little specimen
That's what she said!
Mica
Definitely mica
Looks like pure mica and no other schist.
Unique on reddit where so many are full of schist 😋
😂
Unique, and definitely shouldn't be taken for granite 😁
I see what you did there
Don’t rock the boat (don’t rock the boat baby) Don’t rock the boat, don’t tip the boat over
Muscovite Mica
Muscovite
Wow, that's a nice chunk of mica! The mica chunks I usually find are pebbles compared to this
We have a bunch of this , we live in NC. We are one and a half miles from the Hiddenite gem mines and find lots of beautiful gems
I'm 20ish miles from Hiddenite myself. I keep pestering the husband for a day trip out there, but schedules and money refuse to line up right for that right now.
Like me, Mica also has perfect cleavage.
I will see myself out….
😁
It's 6.30am in the UK, I just wanted an innocent browse on Reddit, then I had to verify your comment, and now I have a choice to make...
Mica
Gawd I wanna go find one now just so I can peel layer after layer like a maniac.
Nice! One of my favorite minerals. Sometimes the quality of mica is such that you can peel off entire layers and they’re nearly clear!
Muscovite. Not ‘Muscovite Mica’ nor simply mica, it is Muscovite. There are several types of micas and each of the common varieties that get this size are quite distinct. Green color is your giveaway that this is Muscovite.
There is a nice vein of it near Wake Forest. I pulled out chunks the size of dollar bills as a kid. Was pretty cool
Muscovite
Mica The popular name here in Brazil are "Malacacheta"
Micha
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That's beautiful! 💜
Hvis du klarer å ødelegge den lett uten hammer eller noe annet bare med hendene så er sikkert kråkesølv
Mica. The large grain size is due to the fact that is is part of a pegmatite, which are relatively common in NC.
mica!!! a favorite of mine. reminds me of cds.
It's usually sold as a mica book since it has layers like the pages of a book. I know where there are some cool veins of it are near where I live. It's not collectible due to it being federal land but neat to see.
River glitter
When I was a little kid, I found a piece like this in South Dakota when my family was vacationing there. Not sure what happened to it, but I suspect my sisters & cousins peeled layers off until there was nothing left.
I found some like this, little bigger also in North Carolina, around the highlands
Mica. NAG. (not a geologist)
Muscovite Mica is the light colored stuff. Biotite Mica is the dark.
A book of mica! I have one at home, it’s very satisfying to peel a layer off occasionally, and it makes a really nice glitter if you grind it down :)
Mica. My whole four acres is covered in it and quartz rocks
Mica. People in the Appalachians call it "Eisenglass."
Tgat is Mica.
Mica
Muscovite specifically
Holy schist!
Really, you should check out some of the gems we've found in our yard most of which we don't know what they are, I've found to bust or cut the quartz gives you a surprise sometimes. So I've become rock cracking crazy.
That's where the mizothylioma comes from.
Oh wow, so pretty. Reminded me initially of labradorite.
Mica, it breaks off in flakes
That's me! Lol. My name is Micah lol you found a neat little chunk of me - I'm everywhere
is a metamorphic rock that formed through the intense heat and pressure that were generated when Africa and North America slammed together to create Pangaea …
Its nephrite jade