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Difference between revisions of "40d:The Non-Dwarf's Guide to Rock"

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| [[Bauxite]]||stone||the only [[magma-safe]] [[stone]]<sup>2</sup>; only source of some high-value gems
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| [[Bauxite]]||stone||the only [[magma-safe]] [[stone]]<sup>2</sup>; only source of some high-value gems, dark red colour
 
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| [[Platinum nuggets]]||highest-value ore||smelt into [[Platinum]], a highest-value [[metal]]
 
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Revision as of 04:28, 13 August 2009

Wondering what that new kind of rock your dwarves just struck is good for? Possibly nothing, but when you're just getting started it can be tough to tell the trash from the treasure. The following table summarizes the types of stone and ore found in Dwarf Fortress (note that it does not include gems).

The Uses column lists any special uses or properties of this particular stone type; if no uses are listed, you can always use the stone for general construction and crafting. Note that many "low value" materials are still very useful in a Dwarf Fortress. "Colors" are useful for color coding or creative aesthetic uses.

For more detailed and expanded information, see the Stone, Ore, Metal, Alloy, Veins & Clusters, and Smelting pages, or the article on any particular stone, metal or ore.

Table of Rocks

(Some materials are worth an additional comment; these are numbered, with notes below table.)

Name Type Uses
Adamantine, raw THE highest
value "ore"1
becomes Adamantine1, by far the most valuable substance
Alabaster stone
Aluminum, native a high-value ore smelt into Aluminum, a highest-value metal
Alunite stone
Andesite layer stone
Anhydrite stone
Basalt layer stone
Bauxite stone the only magma-safe stone2; only source of some high-value gems, dark red colour
Bismuthinite rare/obscure ore ingredient of Bismuth Bronze
Bituminous coal stone smelt into Fuel, flammable
Borax stone
Brimstone stone yellow color
Calcite stone Flux, mid-value stone
Cassiterite uncommon ore smelt into Tin, a low-value metal; ingredient of Bronzes
Chalk layer stone Flux, mid-value stone
Chert layer stone
Chromite stone
Cinnabar stone red color
Claystone layer stone
Cobaltite stone blue color
Conglomerate layer stone
Copper, native common
low-value ore
smelt into Copper, a low-value metal
Cryolite stone
Diorite layer stone
Dolomite layer stone Flux, mid-value stone
Felsite layer stone
Flint layer stone
Gabbro layer stone only source of some ores & gems
Galena ore smelt into Lead, a low-value metal, w/ a 50% chance3 for Silver
Garnierite uncommon ore smelt into Nickel, a low-value metal, magma-safe
Gneiss layer stone
Gold nuggets ore smelt into Gold, a high-value metal
Granite layer stone only source of some ores; relatively rich in content
Graphite stone flammable
Gypsum stone yellow Color
Hematite ore smelt into Iron, a mid-value metal; ingredient for Steel
Horn silver ore smelt into Silver, a mid-value metal
Hornblende stone
Ilmenite stone
Ice4 stone/water4 light blue colour
Jet stone
Kaolinite stone dark red color
Kimberlite stone only source of Diamonds, dark blue color
Lignite stone smelt into Fuel, flammable
Limestone layer stone Flux, mid-value stone
Limonite high-value ore smelt into Iron, a mid-value metal; ingredient for Steel
Magnetite high-value ore smelt into Iron, a mid-value metal; ingredient for Steel
Malachite low-value ore smelt into Copper, a low-value metal
Marble layer stone Flux, mid-value stone
Marcasite stone
Mica stone
Microcline stone eye-blasting blue color
Mudstone layer stone
Obsidian layer stone create stone short swords, highest value stone
signifies nearby magma if not a layer
Olivine stone may contain Platinum, green color
Orpiment stone yellow color
Orthoclase stone yellow color
Periclase stone
Petrified wood stone bright red color
Phyllite layer stone
Pitchblende stone purple color
Platinum nuggets highest-value ore smelt into Platinum, a highest-value metal
Puddingstone stone mud colour
Pyrolusite stone
Quartzite layer stone
Realgar stone bright red color
Rhyolite layer stone
Rock salt layer stone
Rutile stone purple color
Saltpeter stone yellow color
Sandstone layer stone
Satinspar stone
Schist layer stone brown color
Selenite stone
Serpentine stone green color
Shale layer stone
Siltstone layer stone
Silver nuggets ore smelt into Silver, a mid-value metal
Slate layer stone
Sphalerite uncommon ore smelt into Zinc, a low-value metal; ingredient for Brass
Stibnite stone
Sylvite stone yellow color
Talc stone
Tetrahedrite low-value ore smelt into Copper, a low-value metal,
w/ a 20% additional chance3 of Silver; smelt into Billon

Value of rocks & metals

You won't find the terms "low-value" or "highest-value" used in the game, but they're handy here for rough comparison. "Values" are all relative to each other, on a common scale. The "material value" number multiplies any final product that is created with that material by that number. An average generic statue (base value 25) is worth much more than an average generic throne (base value 10), but a throne carved from raw gold nuggets (10 x 30 = 300) will be worth far more than a common-stone statue (25 x 1 = 25). (Note - "quality" also factors in to total value of a final product, as do some other considerations, but those are outside the scope of this intro article). Bottom line - when in doubt, go for the more valuable stuff.

Common stones (the vast majority) have a value multiplier of x1, mid-value (all flux stones) are x2, and high-value (obsidian only) is x3. This affects things like stone tables and doors, statues or stonecrafts - anything made from stone. Metal ores have varying values, from 2-40, and can either be treated as stone or smelted into bars of metal.

(To be complete and for comparison, all wood has a value of x1, equal to common stone.)

For metals, low-value (like copper or nickel) is x2. Mid-value (silver or iron) is around x10, high-value (gold, steel) is x30, and highest-value (platinum, aluminum) is x40. Note that the raw mined ore and the smelted pure metal often have different value multipliers, but not always. Alloys like brass or bronze are often more valuable than the sum of their pure metal ingredients, and have a true spectrum of values between 3-23. (Alloy values are not listed in this article.) Metal can be crafted into weapons, armour or tools, decorations, furniture or even buildings.

Notes:

1. Adamantine is not exactly like other metals, although it works almost the same. It has a value multiplier of x300 (yes, three hundred). It is also quantums better than steel for all combat purposes, and steel is clearly the best material otherwise available. See adamantine for a full discussion of this unusual and ultimate material.
2. Bauxite: Magma will melt most stone, and while there are some magma-safe metals, mechanisms can only be made from stone (or processed adamantine), not metal. Bauxite (or adamantine) is the only stone that will not melt in magma (see magma-safe), and so is uniquely suited for that purpose.
3. % chance for additional metals - when Galena and Tetrahedrite are smelted, they produce (respectively) 1 lead or 1 copper bar, 100% of the time. They occasionally produce a second, additional bar of the second metal, with the % chance as listed above.
4. Ice has some very unusual properties in Dwarf Fortress, and can be disastrous if misused. See article on ice for a more complete discussion.

How to find a rock

Basically, you look under other rocks. The trick is to have a good guess which other rocks to look under to find the one type that you're looking for.

In the main article for every rock (many generic/low-value ones share another table on the stone page), there is information about where these stones can be found. Usually that's in a type of layer, or sometimes within another specific or general type of stone. Sometimes the rock is a layer stone. If it's found in sedimentary, igneous intrusive, igneous extrusive, metamorphic or soil, those are broad classifications that cover many different types of layer stone. A layer stone means it creates the dominant layer of that entire area, as defined by the "area block" (see next). By figuring out where the type of rock/ore you are looking for is found, you can dig in areas that have a better chance of having it.

Area Blocks

Okay, this is the "advanced basic" part of the lesson - then we're done.

When you first start a new game, and you're looking at the embark map, there is the World map on the right, the Region map in the middle, and the Local map on the left. The icons on the local map relate 1:1 to what are called "area blocks" on the game map, the map where your dwarves will move around. Each area block is 48x48 tiles square. The game is smart enough to make the borders a little fuzzy, but each area block defines the plant and animal life, the temperature and rainfall, and the layers of stones that can be found in that 48x48 area. These are clumped together in like types - using the F1, F2, F3 & etc. keys you can view them all.

If you pay attention to the pre-embark map (and make notes?), you can see what layers lie below each area block, in order as they go deeper. This will help you find stone/ore you might be looking for. You can also see where any underground pool or underground river or magma might be hiding - but that's another article.

See also: