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Re:What Is Glitter? by ohadron on Saturday December 22, 2018 @02:54PM (#18742142)
Here's a huge thread on Reddit trying to figure out which mystery industry is the largest buyer of glitter: https://www.reddit.com/r/UnresolvedMysteries/comments/a8hrk0...

No conclusive results yet, but I believe Reddit will deliver.

Re:What Is Glitter? by ruddct on Saturday December 22, 2018 @03:59PM (#18742420)
Currency is my favorite theory from this (and would explain the extreme secrecy). Take a look inside your wallet, it's probably a little glittery.

(Related: For those who enjoyed the photos in this article, make sure to follow the photographer's Instagram, it's incredible. https://www.instagram.com/chrismaggio/)

Re:What Is Glitter? by foobarian on Saturday December 22, 2018 @04:11PM (#18742467)
I thought defense would be another likely user. Chaff would use huge quantities of it.
Re:What Is Glitter? by DanBC on Saturday December 22, 2018 @10:05PM (#18744139)
Doesn't chaff work by being an aerial? And so it needs to be a certain length?

http://www.agriculturedefensecoalition.org/sites/default/fil...

> Chaff consists of aluminum-coated glass fibers (also referred to as dipoles) ranging in lengths from 0.8 to 0.75 cm.

> Figure 1. Radio frequency chaff cartridges (Air Force version RR-188/AL, top; Navy version RR-144/AL, bottom) and chaff fibers (right). Fibers of different lengths can be seen in the Navy operational version (clear cylinder). These lengths correspond to the frequency modes of the radar spectrum

Re:What Is Glitter? by knodi123 on Saturday December 22, 2018 @06:14PM (#18743038)
Chaff is a little different. For instance, most glitter is plastic, and plastic wouldn't do any good against radar. Here's what it really looks like:

https://upload.wikimedia.org/wikipedia/commons/b/b0/Usnchaff...

Re:What Is Glitter? by trevyn on Saturday December 22, 2018 @08:33PM (#18743784)
But but metallized plastic!

Yup, wiki says it can be metallized plastic: https://en.m.wikipedia.org/wiki/Chaff_(countermeasure)

Re:What Is Glitter? by cperciva on Saturday December 22, 2018 @03:06PM (#18742196)
I thought the answer was right in the article: Automotive paint. They've got a lot of surface area to cover, and car companies want their vehicles to shine.
Re:What Is Glitter? by ken on Saturday December 22, 2018 @03:22PM (#18742271)
I don't think automotive manufacturers would be worried about people knowing that their shiny paint contains glitter. Also, there are a lot of cars in the world, but most just get painted once.

My first guess would be a consumable. Maybe food-related, where we don't expect (or want) glitter. The "toothpaste" guess sounds like it's on the right track. "Fast food" wouldn't entirely surprise me, either.

Re:What Is Glitter? by jey on Saturday December 22, 2018 @05:23PM (#18742828)
It's still probably under NDA and the glitter suppliers are contractually forbidden from revealing their customers. It'd be up to the customer to reveal it.
Re:What Is Glitter? by lifeformed on Saturday December 22, 2018 @04:33PM (#18742560)
I thought that too but I think that line was just worded awkwardly. It was meant as a change of topic to end the writer's insistence.

For reference:

> I asked if she would tell me off the record. She would not. I asked if she would tell me off the record after this piece was published. She would not. I told her I couldn’t die without knowing. She guided me to the automotive grade pigments.

Re:What Is Glitter? by code_duck on Saturday December 22, 2018 @03:47PM (#18742373)
I thought the answer was given in the article as Revlon. Nail polish, eyeshadow, lipstick, blush... all can contain micro glitter particles. I wonder, what is the total surface area painted by cosmetics each year?
Re:What Is Glitter? by kingbirdy on Saturday December 22, 2018 @04:12PM (#18742478)
That's hardly secretive or unexpected, though - everyone knows cosmetics contain glitter
Re:What Is Glitter? by DanBC on Saturday December 22, 2018 @05:37PM (#18742887)
I don't think most consumers know that their lipstic or eyeshadow contains microplastics.
Re:What Is Glitter? by mbreese on Saturday December 22, 2018 @05:45PM (#18742922)
I'd wager that they either know or don't want to know...
Re:What Is Glitter? by tomcam on Saturday December 22, 2018 @06:06PM (#18743007)
I didn’t. Had I considered it I would have assumed that at least in the US regulations would prohibit its inclusion.
Re:What Is Glitter? by code_duck on Saturday December 22, 2018 @07:08PM (#18743348)
Whatever the product may be, it sparkles, so it can’t be much of a secret.
Re:What Is Glitter? by DanBC on Saturday December 22, 2018 @10:00PM (#18744125)
Re:What Is Glitter? by code_duck on Saturday December 22, 2018 @10:44PM (#18744281)
Probably, no. My guess is it contains small metal particles. But if I wanted to determine that, I wouldn’t look at a photo. I would read the ingredients.

A lot of cosmetics straight up contain phthalates as an intentionally added ingredient.

Re:What Is Glitter? by ohadron on Saturday December 22, 2018 @03:11PM (#18742223)
Makes sense and could be it, but somewhere in that reddit thread there's a car paint guy who claims they use pure aluminium particles and not just aluminium painter polymer.
Re:What Is Glitter? by CPLX on Saturday December 22, 2018 @05:10PM (#18742756)
This is the answer, the article isn’t being particularly subtle about it.
Re:What Is Glitter? by feint on Saturday December 22, 2018 @05:38PM (#18742890)
I'm guessing floor tiles/fake stone benchtops. Huge market that would require a lot of glitter and it's not something you initially think would contain glitter. The expensive fake stone benchtops would feel "cheaper" if you knew that it was just glitter making them look good.
Re:What Is Glitter? by salgernon on Saturday December 22, 2018 @09:10PM (#18743947)
I was thinking asphalt and concrete - it seems that New York uses a specific percentage of mica flakes in their sidewalks, but I wouldn’t be surprised to find that roadways would use something to aid reflectivity as well.
Re:What Is Glitter? by anon_cow1111 on Saturday December 22, 2018 @11:18PM (#18744398)
I looked road markings up earlier because it was also my first guess, but everything I've seen indicates they just use plain glass microspheres in reflective paint and such.

For the roads themselves, more reflective might be a bad thing anywhere that sees heavy snowfall. Less sunlight absorbed=colder roads=more snow buildup and many other related problems.

None of these uses would need to be kept secret though.

Re:What Is Glitter? by lotyrin on Saturday December 22, 2018 @11:27PM (#18744428)
Yeah, the microspheres have the property of being very retroreflective (shine headlamp light directly back toward a driver efficiently) and so get used in lots of automotive visibility scenarios.
Re:What Is Glitter? by titanomachy on Saturday December 22, 2018 @10:11PM (#18744161)
Why would a local government be secretive about what they put in roads?
Re:What Is Glitter? by cf498 on Saturday December 22, 2018 @04:55PM (#18742671)
I love how one of the most up voted answers boiled down to "the military"

https://old.reddit.com/r/UnresolvedMysteries/comments/a8hrk0...

>defense department would be extremely secretive

>And they very much wouldn't care about the environmental impact

>A few hundred tons of glitter is significantly less bad than thousands of tons of agent orange and dioxin.

>And depleted uranium

Re:What Is Glitter? by mjlee on Saturday December 22, 2018 @05:23PM (#18742831)
https://en.wikipedia.org/wiki/Chaff_(countermeasure)

I guess it's possible chaff is made by Glitterex.

Re:What Is Glitter? by coredog64 on Saturday December 22, 2018 @08:12PM (#18743685)
PSA: Depleted uranium is so-called because it has less radioactivity than the dangerous stuff (U-235).

It's a toxic heavy metal, but it doesn't present any serious radioactivity danger.

Re:What Is Glitter? by itronitron on Saturday December 22, 2018 @11:01PM (#18744334)
yep, depleted uranium bars are used within helicopter blades to equalize the momentum along their length. it's a very heavy metal
Re:What Is Glitter? by DonHopkins on Sunday December 23, 2018 @01:10AM (#18744717)
The makers of "Passion Dust" are pretty upfront about the benefits of putting "magically delicious" glitter in your vagina, so it's probably not them. But I wonder what flavoring they're using?

https://www.self.com/story/do-not-put-glitter-in-your-vagina

>Passion Dust is billed as an "adult novelty item" and its sole purpose is to "add a sparkle and flavor to your natural vaginal fluids to make the experience of lovemaking that much more fun and enjoyable for you and your partner." Um, ok. The flavor is apparently "sweet like candy but not overly sweet," the website says, just enough to make your partner think that your unicorn vagina is "what all vaginas are supposed to look, feel and taste like; soft, sweet and magical!"

https://www.prettywomaninc.com/q-a

"The sparkling effect can last for up to 5 days."

"When he looks down at his 'magic stick' and sees it shining like it's 'God's gift'. It will be weird, but he won't be mad!...He'll either be really impressed with himself or really impressed by you! You can tell him or don't."

Re:What Is Glitter? by snibsss on Sunday December 23, 2018 @02:09AM (#18744871)
Wow, yuck.

But all the more horrifying in light of talc conferring asbestos into cavities in ways that provoke cervical cancer.

Re:What Is Glitter? by DanBC on Saturday December 22, 2018 @03:49PM (#18742382)
I'm guessing the cosmetics industry, and they want to keep it quiet because microplastics is a hot-topic at the moment.
Re:What Is Glitter? by dom96 on Saturday December 22, 2018 @04:02PM (#18742434)
Lush is pretty good with this stuff. It seems that they have switched recently to synthetic mica due to child labor concerns: https://www.lushusa.com/story?cid=article_all-that-glitters
Re:What Is Glitter? by kraftman on Saturday December 22, 2018 @11:59PM (#18744533)
yeah i think this the most likely one as well, people wont like finding out theyre rubbing glitter into their hair/skin
Re:What Is Glitter? by EarthIsHome on Saturday December 22, 2018 @04:36PM (#18742576)
It's probably the jewelery industry to help make their precious and rare rocks sparkle and shine.

I'm sure knowing that glitter is used in a diamond ring would turn a lot of people away.

Re:What Is Glitter? by crazygringo on Saturday December 22, 2018 @09:47PM (#18744092)
Many people are mentioning chaff, and heck, literally the first sentence of the Wikipedia article says:

"metallized glass fibre(fiber) or plastic" [1]

Metallized pastic sounding a lot like... glitter.

[1] https://en.wikipedia.org/wiki/Chaff_(countermeasure)

Re:What Is Glitter? by DanBC on Saturday December 22, 2018 @09:55PM (#18744111)
I thought that chaff couldn't be very much. If you believe this source it's about 500 tons per year, which is very much more than I thought. http://www.agriculturedefensecoalition.org/sites/default/fil...
Re:What Is Glitter? by unixhero on Saturday December 22, 2018 @03:41PM (#18742352)
I too have faith.

If not to that sub, then the peeps over at /r/rbi and /r/whatisthisthing has achieved incredible findings

Re:What Is Glitter? by todd3834 on Saturday December 22, 2018 @11:47PM (#18744488)
For sure I think it is toothpaste.
Re:What Is Glitter? by nyolfen on Saturday December 22, 2018 @11:47PM (#18744490)
my guess was large denomination US dollars
Re:What Is Glitter? by schrodinger on Saturday December 22, 2018 @03:17PM (#18742243)
I like the Apple products theory. All those metallic MacBooks, iPhones, and iPads would certainly add up to a massive demand.
Re:What Is Glitter? by lostlogin on Sunday December 23, 2018 @12:54AM (#18744679)
The ones I’m looking at are straight metal or anodised metal. It isn’t Apple.