Can You Melt Obsidian and Cast a Sword?

  • Published on Aug 4, 2018
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    I took some user comments way to seriously and figured out what it would take to melt obsidian and sand cast it into a sword.
    Thanks for FOCI Glass Studio for their help with this project. They are a Non-Profit Studio in Minneapolis which teaches Glass Blowing Classes from Beginner to Expert!

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Comments • 29 381

  • a guy of randomness

    Wow! you really CAN melt obsidian! this is epic!

    *-leave your en-*---

  • Sky Cloudd
    Sky Cloudd Day ago

    Guys its fake he has an obsidian mod

  • Paul Yang
    Paul Yang Day ago

    Minecraft vibes and nostalgia

  • Nateontheguitar
    Nateontheguitar Day ago

    We can use him to kill the White Walkers

  • JPA
    JPA Day ago

    White walkers dislike this video

  • Randolph Lievertz

    Try adding Borax. Boron strengthens silicone materials like glass & obsidian. It also reduces cracking & breaking.

  • Superdameonglitchy4 Denovchek

    use a waterjet

  • Fish Exterminator

    How many people watching because of GOT?

  • RetartedGeniusGaming

    The cat eats obsidian

  • Noah Hastings
    Noah Hastings Day ago

    Gendry says yes

  • Jakob Peter Raahauge

    It really dope!

  • Jeno Tejada
    Jeno Tejada Day ago

    You need to build smeltery using seared bricks, smeltery controller and seared tank, then smelt the Obsidian ingots there then you can cast it if you have aluminum brass

  • Nikhil Bhamare
    Nikhil Bhamare Day ago

    You just made dragon glass, now you can kill night King and white Walker

  • Omaewa MouShindeiru


    MEMES ARE LIFE Day ago

    2:13 Me Making Caramel..... Using A Stove.

  • LegendaryHunter
    LegendaryHunter Day ago

    Just install the minecraft mod, dude.

  • Brent Williams
    Brent Williams Day ago


  • ian defensor
    ian defensor 2 days ago

    *DrAgON GLaSS*

  • Andrew Pleva
    Andrew Pleva 2 days ago

    So it failed....

  • Sean Bedel
    Sean Bedel 2 days ago

    Can someone explain what happened at 1:28. Why did it turn into little shards?

    • David Bodor
      David Bodor Day ago

      Because in ASOIF the Others get killed by obsidian.

  • Hugo Figueira
    Hugo Figueira 2 days ago

    Now you know why there is not an obsidian sword in minecraft.

  • HawaiianSurfer96
    HawaiianSurfer96 2 days ago

    Who's here because of Game of Thrones S8E1?

  • Jester
    Jester 2 days ago +1

    Isn't obsidian really fragile?

    • Jester
      Jester 2 days ago +1

      Yes. Yes it is.

  • OG Fight night
    OG Fight night 2 days ago +1

    Your such an igneous rock

  • Ryan Ebensperger
    Ryan Ebensperger 2 days ago

    I'd like to see you try the straight obsidian with a canoe style crucible in a tunnel or mailbox style forge, a)it may work differently with better ventilation, b) even if it does do the same thing we could watch the reaction itself

  • Calvin Wells aka Horizon

    The effort and knowledge deserves a like and subscribe

  • Lollipop idk
    Lollipop idk 2 days ago

    Sharpness C
    Unbreakable C
    Best sword ever

  • Matheus
    Matheus 2 days ago

    You have to call gendry to help you with it!

  • aubrey ledesma
    aubrey ledesma 2 days ago +1

    Gendry Barratheon laughs at you.

  • Michael Lam
    Michael Lam 3 days ago

    that was a nice looking sword

  • Michael Lam
    Michael Lam 3 days ago

    i get obsidian from minecraft creative

  • shosoxsam
    shosoxsam 3 days ago +1

    Awesome, persistence paid off!

  • Celery Man
    Celery Man 3 days ago +1

    I see you have a dragon glass sword, you are ready for fight the nights king

  • Horizon gaming
    Horizon gaming 3 days ago

    Its called dragon glass and Jon Snow would need some

  • blamegoogleforallowingmetohavethislongname Yaoi!

    Great, now i can fight the Night King.

  • Elion Kilos
    Elion Kilos 3 days ago

    that's not obsidian, its dragon class, Just give it to Gendry he can forge anything

  • A O
    A O 3 days ago

    Get ready for this video to blow up with Game of Thrones featuring cast obsidian/dragonglass weapons in season 8 episode 1.

  • Cassandra Perez
    Cassandra Perez 3 days ago +1

    This is the first video of yours I ever watched and when I saw the cat i was so surprised because they look just like mine! I’m subscribing just for the cat

  • DashedCactus586
    DashedCactus586 3 days ago

    Bruh I thought you needed a diamond pickaxe

  • Exclusive Headline
    Exclusive Headline 3 days ago

    Jeez you could've built a Nether portal with all those obsidians

  • The Gaming Arceus
    The Gaming Arceus 4 days ago

    U worked really hard for this video, nice work

  • The Gaming Arceus
    The Gaming Arceus 4 days ago

    People made obsidian blades thousand years ago, yet in the 21st century it hard with all these machines

    • 14zer0zer0
      14zer0zer0 Day ago

      That's because they weren't trying to cast them.
      It's much easier to knap them.

  • Frank R. Haugen
    Frank R. Haugen 4 days ago

    This channel should be named: Failing Upwards

  • Corey Burton
    Corey Burton 4 days ago

    In otherwords, it's really almost unachievable to learn Ebony smithinf

  • Santi Cheeks
    Santi Cheeks 4 days ago

    Finally I can create a obsidian sword in Minecraft

  • Joe the Hoe
    Joe the Hoe 4 days ago

    Now this is devotion

  • Amipotsophspond
    Amipotsophspond 4 days ago

    so 1st make a large kiln big enough to hold the mold. 2nd use graphite not sand. 3rd heat the unknown obsidian slowly giving a chance for all gas to escape slowly rather then all at once. add vacuum if you can after it stops. preheat the mold. after pouring put the mold back in the kiln to cool slowly.
    the big problem is your trying to cook a pot roast in the oven in hour not a crock pot over 12 hours. because you are using glass sand to cast glass you are trying to do everything quickly so the mold does not melt. your trying to cast wax in a wax mold see the problem.

  • sassyman 12345
    sassyman 12345 4 days ago +1

    Fine TVclip I will watch it

  • Kyle K
    Kyle K 4 days ago

    Fire and ice are the ingredients

  • Nelo Angelo
    Nelo Angelo 4 days ago

    why didn't you try to make a bigger block of obsidian and then just sculpt the sword from the biggest broken shard?

  • Christian Jules Usman

    Dragon glass lol

  • FlameBorn
    FlameBorn 4 days ago

    Minecraft: wait. That’s illegal

  • Lachlan Brown
    Lachlan Brown 4 days ago

    Get gendry baretheon to do it he knows we need these for the long night

  • reinout koenen
    reinout koenen 4 days ago

    who came here after watching the newest episode of game of thrones?

  • Paulie Paul
    Paulie Paul 4 days ago

    Did you see the axe in GOTS8?

  • SwatSpecialist
    SwatSpecialist 4 days ago

    Damn..... How to craft that sword?

  • I Suck At Life
    I Suck At Life 4 days ago

    *SMITHING 100*

  • Elliot Jensen
    Elliot Jensen 4 days ago

    12:31 I love it.

  • Asiyah Ali
    Asiyah Ali 4 days ago

    *john snow has entered the chat*

  • AJ Killerofall
    AJ Killerofall 4 days ago

    Great now try diamond

  • Liennar Naikh
    Liennar Naikh 4 days ago



  • daimon hellstrom
    daimon hellstrom 4 days ago

    cant you just mix powdered obsidian into steel to kill wights?

    • scarmander
      scarmander 3 days ago

      Maybe that's how Valyrian steel is made!

  • daimon hellstrom
    daimon hellstrom 4 days ago

    Gendry did it without all the fancy tools

    • David Bodor
      David Bodor Day ago

      @daimon hellstrom Wikipedia "Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock."
      Rock, glass you can call it whatever, it has the properties of both. There's a reason why it's referred to as dragonglass, it's kinda like glass. Shiny and fragile.
      In a flintknapping video I watched earlier a guy says its much more fragile than flint.

    • daimon hellstrom
      daimon hellstrom Day ago

      +David Bodor its fragile like slate not like glass. It's a volcanic rock

    • David Bodor
      David Bodor Day ago

      @Daimon Hellstrom Its a volcanic rock type but its fairly close to glass in its properties. You can call it a rock, glass whatever, its not that relevant. Its fragile as F is my point, which you can see in the video and many other videos on youtube too. You knapp them you don't forge them.

    • daimon hellstrom
      daimon hellstrom Day ago

      +David Bodor obsidian isn't glass

    • David Bodor
      David Bodor Day ago

      Obviously the showrunners haven't watched this video...or bothered to learn that dragonglass is shatters easily.

  • seer dodo
    seer dodo 4 days ago +1

    Do you know who makes weapons for wildlings? Cripples and cocksuckers. *Which one are you?*

  • Olivia Williams
    Olivia Williams 5 days ago

    So what you think of Gendry forging Obsidian weapons episode 1 of season 8 of Game of Thrones?

    • TheFiresloth
      TheFiresloth 4 days ago +1

      Lazy writing by clueless writers ?

  • Dexter Boolan
    Dexter Boolan 5 days ago

    Eventually he did not cast obsidian


  • AquaSquid
    AquaSquid 5 days ago

    1:27 Your thanos

  • Oliver Kaunds
    Oliver Kaunds 5 days ago

    Jon: We need to find, we need to mine it, we need to make weapons out of it. Cause dragon glass kills whytewalkers
    Gendry: Not possible mate.

    • TheFiresloth
      TheFiresloth 4 days ago

      You can just prune it. That's what ancient people did.

  • Tirus collins
    Tirus collins 5 days ago

    Obsidian is made of carbon silica soda lime sodium carbonate and potassium carbonate

  • Eric Noriega
    Eric Noriega 5 days ago

    No one is perfect

  • Jennifer Brewer
    Jennifer Brewer 5 days ago

    In Westeros they call that dragonglass.

  • The Illuminati
    The Illuminati 5 days ago +1

    Wow these mods really can do anything
    Try make a bedrock sword

  • shane g
    shane g 5 days ago

    The answer is NO

  • DrakE (original)
    DrakE (original) 5 days ago +1

    Obsidian is obsidian bcz it does not get in contact with oxygen. You need to cast it on a vacoon
    Obsidian crystalizes before getting on surface

  • Kylo The Fox
    Kylo The Fox 5 days ago +1

    Actually you can make an obsidian sword by stuffing the handle into your forhead

  • skidrowsux1977
    skidrowsux1977 5 days ago

    next time melt yourself.

  • Andrew Farley
    Andrew Farley 5 days ago +1

    Here because of yesterday’s GoT episode

    • David Bodor
      David Bodor 23 hours ago

      No, because GoT in the past used to pay attention to details. Especially something this obvious.

    • Andrew Farley
      Andrew Farley Day ago

      David Bodor because so many tv shows in the past were always scientific?

    • David Bodor
      David Bodor Day ago

      Well it shows just how much research and effort they put into shit nowadays...

    • Andrew Farley
      Andrew Farley Day ago

      David Bodor who cares

    • David Bodor
      David Bodor Day ago

      The showrunners didn't watch this video apparently...

  • Desiree Heart Hamoay

    So mant minecrafters!!! 😂😂😂

  • Meme Realm
    Meme Realm 6 days ago

    That’s sum nice looking ketchup🤤

  • Yaad Rana
    Yaad Rana 6 days ago

    Careful of vapers lol

  • Christopher Flowers
    Christopher Flowers 6 days ago

    This is why you can't make a obsidian sword in minecraft

  • Eric Kintzer
    Eric Kintzer 6 days ago +1

    dude how did you get that obsidian? iv'e been trying to mine it all day with my diamond pickaxe

  • AliZul61
    AliZul61 6 days ago

    Do a video on How to make babies.

  • Eibonamarini rasseru

    Minecraft take notes
    We need obsidian armor, shield,sword,package that allows permanent resistance in the nether and Minecraft normal world

  • Orgi321
    Orgi321 6 days ago

    Hello, i need a lot of dragon Glass to destroy white walkers

  • Mathieu Cousineau
    Mathieu Cousineau 6 days ago

    Just get Gendry to do it

  • Dylan Downright
    Dylan Downright 6 days ago +1

    I see the true boss of this channel was laying in the grass while his underlings worked Haha

  • Ganfol Rey Sandia
    Ganfol Rey Sandia 6 days ago

    Gendry was right!

  • Whoami691
    Whoami691 6 days ago

    Game of thrones says yes! 😊

  • Holly and Katie 123
    Holly and Katie 123 6 days ago

    7:31 reminds me of crushed oreos

  • Timi Kärkkäinen
    Timi Kärkkäinen 6 days ago

    "How to make everything" - how about making proper size oven to make everything!?

  • Lucas Benda
    Lucas Benda 6 days ago

    So who else came here to watch this right after the new game of thrones episode??

  • Corey Hall
    Corey Hall 6 days ago +52

    Anyone else come here when they saw Gendry forging dragonglass weapons in the season 8 premiere?

    • Horace Cunningham
      Horace Cunningham 2 days ago

      LOL yes!!! watching a rerun now and it came to me

    • The Gaming Arceus
      The Gaming Arceus 4 days ago


    • TheFiresloth
      TheFiresloth 4 days ago +3

      "-Hey Gendry, you're forgeron, right ? forge this obsidian.
      -Huuuu... It doesn't really work that way.

    • Olivia Williams
      Olivia Williams 5 days ago +4

      Son Lam me too, made some daggers out of shards too. Not... that

    • Son Lam
      Son Lam 5 days ago +4

      Casting swords and axes doesn't seem very possible with medieval technology. I thought they were just going to chip obsidian chunks into crude blades and arrowheads

  • Lobsterrツ
    Lobsterrツ 6 days ago +3

    Its not like glass with other substances on it
    Its just lava and water
    Come on man
    Get it right

  • Subscribe To T-Series
    Subscribe To T-Series 6 days ago +1

    WhErE aRe YoU mInEcRaFt Bois At

  • Bahleus
    Bahleus 6 days ago +9

    I know an armour smith's apprentice from Flea Bottom who would be up to the task.

    • 14zer0zer0
      14zer0zer0 Day ago

      +David Bodor for sure. That's what I was expecting to see but then they cut to the scene and I was like, "what the hell is this crap?!".

    • David Bodor
      David Bodor Day ago

      @Bahleus It's literally a volcanic rock type. It is very similar to glass so yeah you could call it a glass, a rock, it doesn't really matter.

    • Bahleus
      Bahleus Day ago

      +David Bodor Obsidian isn't a rock like material, it is more like a very impure glass

    • David Bodor
      David Bodor Day ago +1

      I wish they just showed them knapping it instead of forging it...who thought melting and forging rocks is a good idea?

    • 14zer0zer0
      14zer0zer0 5 days ago +1

      +Bahleus I imagine you end up with an inferior arrowhead at the end too.

  • austin morgan
    austin morgan 7 days ago

    It's a lot easier to find a big chunky of obsidian and chip it into your desired form then try to mold it, but I get the point here

  • Landon
    Landon 7 days ago

    Dope stuff y'all. I enjoyed watching y'all do this, keep it up y'all 😃😎

  • Our Nation
    Our Nation 7 days ago

    Nether portal?

  • Billy Bob
    Billy Bob 7 days ago +1