Saltpeter

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Saltpeter

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Graphic
Uses
Masonry Stone crafting Construction
Location
Found in sedimentary layers as small clusters
Properties
Material value 1☼ Not fire-safe Not magma-safe Melting point 10601 °U (x) Boiling point 10720 °U (x) Ignition point none (m) Solid density 2105 kg/m³ Specific heat 800 J/kg·K Color ivory
Wikipedia article

v50.14 · v0.47.05 This article is about the current version of DF. Note that some content may still need to be updated. More Info · V

Saltpeter is a non-economic and low-value yellow stone found within sedimentary layers. With a melting point of 10601 °U and a boiling point of only 10720 °U , it is one of the few stones which will boil in magma. Saltpeter is also the second least dense non-economic stone, second to jet, making it great for objects that must be hauled frequently, if it were not for its rarity.

In real life, its best known use is as a primary ingredient of gunpowder, along with charcoal and sulfur. This process does not exist in Dwarf Fortress (yet; it seems Toady has plans to include gunpowder later, but only for simple uses), and therefore gunpowder is also non-existent. Saltpeter, as a source of both potassium (like potash) and nitrogen, is also a fertilizer, though it is not possible to use it as such in Dwarf Fortress.

This article or section has been rated D for Dwarf. It may include witty humour, not-so-witty humour, bad humour, in-jokes, pop culture references, and references to the Bay12 forums. Don't believe everything you read, and if you miss some of the references, don't worry. It was inevitable.

It is rumored that if a dwarf ever discovers saltpeter's capabilities, dwarven "civilization" would come to an explosive, but Fun end.

Despite persistent myths to the contrary, adding saltpeter to your male dwarves' military rations will not help to control your fortress's population or reduce incidences of romantic infidelity.

Saltpeter mine.

Raws
potassium nitrate, good for fertilizer and blowing things up with carbon and sulfur [INORGANIC:SALTPETER] [USE_MATERIAL_TEMPLATE:STONE_TEMPLATE] [STATE_NAME_ADJ:ALL_SOLID:saltpeter][DISPLAY_COLOR:6:7:1][TILE:'x'] [ENVIRONMENT:SEDIMENTARY:CLUSTER_SMALL:100] [SOLID_DENSITY:2105] Previous value was much too low [IS_STONE] [MELTING_POINT:10601] [BOILING_POINT:10720] [STATE_COLOR:ALL_SOLID:IVORY]

V · T · E Stones
Sedimentary	Calcite · Chalk · Chert · Claystone · Conglomerate · Dolomite · Limestone · Mudstone · Rock salt · Sandstone · Shale · Siltstone
Igneous	Intrusive Diorite · Gabbro · Granite Extrusive Andesite · Basalt · Dacite · Obsidian · Rhyolite
Metamorphic	Gneiss · Marble  · Phyllite · Quartzite · Schist · Slate
Ore	Adamantine, raw · Aluminum, native · Bismuthinite · Cassiterite · Copper, native · Galena · Garnierite · Gold, native · Hematite · Horn silver · Limonite · Magnetite · Malachite · Platinum, native · Silver, native · Sphalerite · Tetrahedrite
Economic	Alabaster · Bituminous coal · Calcite · Gypsum · Kaolinite · Lignite · Satinspar · Selenite
Other	Alunite · Anhydrite · Bauxite · Borax · Brimstone · Chromite · Cinnabar · Cobaltite · Cryolite · Graphite · Hornblende · Ilmenite · Jet · Kimberlite · Marcasite · Mica · Microcline · Olivine · Orpiment · Orthoclase · Periclase · Petrified wood · Pitchblende · Puddingstone · Pyrolusite · Realgar · Rutile · Saltpeter · Serpentine · Slade · Stibnite · Sylvite · Talc