Molten glass

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Molten glass detail.png

Molten glass is used in the Crafting and Construction skills, as well as some quests, to form glass items. It is created through the Crafting skill by using a bucket of sand and soda ash on a furnace, granting 20 Crafting experience. This only requires level 1 Crafting. Alternatively, players can use the Lunar spell Superglass Make, which combines all buckets of sand and all seaweed or soda ash in the player's inventory into molten glass, granting 10 Crafting experience per pair of items.

Molten glass is used in some quests such as Observatory Quest, Horror from the Deep, Wanted!, Desert Treasure, Another Slice of H.A.M. and The Fremennik Exiles.

Creation[edit | edit source]

Furnace[edit | edit source]

Requirements
SkillLevelXP
Crafting Crafting120
Members
Member icon.png
Ticks2 (1.2s)
ToolsNoneFacilitiesFurnace icon.png Furnace
Materials
ItemQuantityCost
pxBucket of sand140
pxSoda ash141
Total Cost81
pxMolten glass1115
Profit34

Superglass Make[edit | edit source]

Due to the random nature of the Superglass Make spell, the displayed output quantities are averages.

Requirements
SkillLevelXP
Crafting Crafting61180
Magic Magic7778
Quest points Requires completion of Lunar Diplomacy
Members
Member icon.png
Ticks6 (3.6s)
Materials
ItemQuantityCost
pxBucket of sand18720
pxGiant seaweed3849
pxAstral rune2312
pxFire rune630
pxAir rune1050
Total Cost1,961
pxMolten glass28.8[r 1]3,312
Profit1,351
  1. On average

Requirements
SkillLevelXP
Crafting Crafting61130
Magic Magic7778
Quest points Requires completion of Lunar Diplomacy
Members
Member icon.png
Ticks6 (3.6s)
Materials
ItemQuantityCost
pxBucket of sand13520
pxSeaweed13481
pxAstral rune2312
pxFire rune630
pxAir rune1050
Total Cost1,393
pxMolten glass16.9[r 1]1,943.5
Profit550.5
  1. On average

Requirements
SkillLevelXP
Crafting Crafting61130
Magic Magic7778
Quest points Requires completion of Lunar Diplomacy
Members
Member icon.png
Ticks6 (3.6s)
Materials
ItemQuantityCost
pxBucket of sand13520
pxSoda ash13533
pxAstral rune2312
pxFire rune630
pxAir rune1050
Total Cost1,445
pxMolten glass16.9[r 1]1,943.5
Profit498.5
  1. On average

Requirements
SkillLevelXP
Crafting Crafting61130
Magic Magic7778
Quest points Requires completion of Lunar Diplomacy
Members
Member icon.png
Ticks6 (3.6s)
Materials
ItemQuantityCost
pxBucket of sand13520
pxSwamp weed132,951
pxAstral rune2312
pxFire rune630
pxAir rune1050
Total Cost3,863
pxMolten glass16.9[r 1]1,943.5
Profit-1,919.5
  1. On average

Crafting table[edit | edit source]

Molten glass can be made into glass items using the Crafting skill by using a glassblowing pipe on them. Each item requires one piece of molten glass to create.

Crafting Level Item Experience GE Price GP/XP
1 Beer glass.png Beer glass 17.5 59 -3.2
4 Empty candle lantern.png Empty candle lantern 19 6 -5.74
12 Empty oil lamp.png Empty oil lamp 25 4 -4.44
33 Vial.png Vial 35 3 -3.2
42 Empty fishbowl.png Empty fishbowl 42.5 5 -2.59
46 Unpowered orb.png Unpowered orb 52.5 76 -0.74
49 Lantern lens.png Lantern lens 55 10 -1.91
87 Empty light orb.png Empty light orb 70 118[MG 1] -1.64
  1. This is the Grand Exchange price after adding a Cave goblin wire to make a Light orb. The Empty light orb is not able to be sold on the Grand Exchange.

Products[edit | edit source]

ItemSkillsMaterials
px Beer glass
  • 1 Crafting
px Boss lair display
  • 87 Construction
px Crafting table 2
  • 25 Construction
px Crafting table 3
  • 34 Construction
px Crafting table 4
  • 42 Construction
px Decorative window
  • 69 Construction
px Empty candle lantern
  • 4 Crafting
px Empty light orb
  • 87 Crafting
px Empty oil lamp
  • 12 Crafting
px Fancy teak dresser
  • 56 Construction
px Empty fishbowl
  • 42 Crafting
px Gilded dresser
  • 74 Construction
px Lantern lens
  • 49 Crafting
px Mahogany dresser
  • 64 Construction
px Mahogany telescope
  • 84 Construction
px Oak dresser
  • 37 Construction
px Oak shaving stand
  • 29 Construction
px Observatory lens
  • 10 Crafting
px Rune case
  • 41 Construction
  • 14 Runecraft
px Rune case
  • 41 Construction
  • 44 Runecraft
px Rune case
  • 41 Construction
  • 90 Runecraft
px Shaving stand
  • 21 Construction
px Stained glass
  • 89 Construction
px Teak dresser
  • 46 Construction
px Teak telescope
  • 64 Construction
px Tip jar
  • 40 Construction
px Unpowered orb
  • 46 Crafting
px Vial
  • 33 Crafting
px Wooden telescope
  • 44 Construction

Drop sources[edit | edit source]

For an exhaustive list of all known sources for this item, see here (include RDT).
SourceLevelQuantityRarity
Theatre of BloodN/A Casket.png200–240 (noted)3 × 1/30
Thermonuclear smoke devil301 Multicombat.png100 (noted)2/128

Notes[edit | edit source]

  • All the ingredients for making molten glass (seaweed and sand) can be found on the island of Entrana, except buckets, but there is a Tool leprechaun found near the Hops patch on Entrana from whom you can withdraw buckets if you have them. There is a sandpit, seaweed spawns, a range for cooking seaweed into soda ash and a furnace to make the molten glass. There is even a glassblowing pipe spawn in a nearby house.