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Difference between revisions of "40d:Stone"

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* [[Metal ore]]: stone that produces [[metal]] [[bar]]s when [[Smelter|smelted]]
 
* [[Metal ore]]: stone that produces [[metal]] [[bar]]s when [[Smelter|smelted]]
 
* Rough [[gem]]s: rough gems can be [[gem cutting|cut]], then used to [[encrust]] objects and create [[window]]s.
 
* Rough [[gem]]s: rough gems can be [[gem cutting|cut]], then used to [[encrust]] objects and create [[window]]s.
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* Other stone: Stone that is not an [[ore]] or a gem. Few of these have a use outside of items and structures. [[Obsidian]] is one exception; it is fairly valuable and is considered "sharpenable," meaning it can be used to make rock short swords at a [[craftdwarf's workshop]].
+
* Other stone: Stone that is not an [[ore]] or a gem. Few of these have a use outside of items and structures. ([[Obsidian]] is one exception).
  
 
[[Economic stone]]s are types of stone that can be reserved for a special purpose. For [[ore]]s, this is smelting and for [[flux|fluxes]], this is steel production. [[Bituminous coal]] and [[lignite]] can be reserved for making [[coke]].
 
[[Economic stone]]s are types of stone that can be reserved for a special purpose. For [[ore]]s, this is smelting and for [[flux|fluxes]], this is steel production. [[Bituminous coal]] and [[lignite]] can be reserved for making [[coke]].
  
−
Having created loose stone, many times you'll want to get rid of it or at least move it someplace else. See [[stone management]] for advice.
+
Having created loose stone, many times you'll want to get rid of it or at least move it someplace else. See [[stone management]] for advice.
  
 
''This article is about DF geology and the distribution of stones, and does not contain the specific locations of [[metal ore]]s or [[gem]]s.''
 
''This article is about DF geology and the distribution of stones, and does not contain the specific locations of [[metal ore]]s or [[gem]]s.''
  
 
== Main layer types ==
 
== Main layer types ==
−
There are four types of stone layers. The type of layer is the primary indicator of what kind of [[ore]] you will find on the map, as well as a sign of [[volcano|volcanic]] activity.
+
There are four types of stone layers (all others are [[soil]]). The type of layer is the primary indicator of what kind of [[ore]] you will find on the map, as well as a sign of [[volcano|volcanic]] activity.
 
The types are [[sedimentary layer]]s, [[igneous intrusive layer]]s, [[igneous extrusive layer]]s, and [[metamorphic layer]]s.
 
The types are [[sedimentary layer]]s, [[igneous intrusive layer]]s, [[igneous extrusive layer]]s, and [[metamorphic layer]]s.
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You will also find layers of [[soil]], but these rarely contain much ore.
 
  
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The primary types of rocks only occur in their own layers. (E.g. you won't find [[limestone]] in a [[marble]] layer.)
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The primary types of rock only occur in their own layers. (e.g. you won't find [[limestone]] in a [[marble]] layer.)
  
 
== Stones forming entire layers ==
 
== Stones forming entire layers ==
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|Chromite||Olivine||Veins||{{Raw Tile|=|#888|#ccc}}  {{Raw Tile|●|#888|#000}}
 
|Chromite||Olivine||Veins||{{Raw Tile|=|#888|#ccc}}  {{Raw Tile|●|#888|#000}}
 
|-
 
|-
−
|Cinnabar||All [[Igneous extrusive layer|Igneous extrusive]], Shale, Quartzite||Veins||{{Raw Tile|£|#f00|#ccc}}  {{Raw Tile|●|#F00|#000}}
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|Cinnabar||All [[Igneous extrusive layer|Igneous extrusive]], Shale, Quartzite||Veins||{{Raw Tile|£|#f00|#ccc}}  {{Raw Tile|*|#F00|#000}}
 
|-
 
|-
−
|Cobaltite||All Igneous All [[Metamorphic layer|Metamorphic]]||Veins||{{Raw Tile|£|#00f|#ccc}}  {{Raw Tile|●|#00F|#000}}
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|Cobaltite||All Igneous All [[Metamorphic layer|Metamorphic]]||Veins||{{Raw Tile|£|#00f|#ccc}}  {{Raw Tile|*|#00F|#000}}
 
|-
 
|-
 
|Cryolite||Granite||Small clusters||{{Raw Tile|-|#fff|#ccc}}  {{Raw Tile|●|#FFF|#000}}
 
|Cryolite||Granite||Small clusters||{{Raw Tile|-|#fff|#ccc}}  {{Raw Tile|●|#FFF|#000}}

Revision as of 15:10, 19 April 2008

Stone or rock is a naturally occuring solid aggregate of minerals. It sometimes leaves behind material after being mined or collapsing. Other types of minable tiles include soil and sand.

Stone is divided into a few key categories:

Economic stones are types of stone that can be reserved for a special purpose. For ores, this is smelting and for fluxes, this is steel production. Bituminous coal and lignite can be reserved for making coke.

Having created loose stone, many times you'll want to get rid of it or at least move it someplace else. See stone management for advice.

This article is about DF geology and the distribution of stones, and does not contain the specific locations of metal ores or gems.

Main layer types

There are four types of stone layers (all others are soil). The type of layer is the primary indicator of what kind of ore you will find on the map, as well as a sign of volcanic activity. The types are sedimentary layers, igneous intrusive layers, igneous extrusive layers, and metamorphic layers.

The primary types of rock only occur in their own layers. (e.g. you won't find limestone in a marble layer.)

Stones forming entire layers

These types of stone occur as entire layers, containing some veins and pockets of other minerals (see below). If one of the following types of stone is present on your map, it will be listed in one of the biomes on the embark screen.

Sedimentary Igneous intrusive Igneous extrusive Metamorphic

Other Stone

Stones found on this table will occur as pockets and veins inside their respective stone layers (see above). When your miners encounter one of them, the game will pause and you will receive an announcement; even for the ones that have no use other than to build constructions of unusual colors. Note that the veins or clusters can spread into other layers, and may cause some layers to contain stones they usually wouldn't.

Non-layer stone occurs in these forms:

  • Large cluster - An oval that occupies nearly half of a 48x48 block, area-wise. Only one appears per block
  • Vein - A sinuous line of the material crosses the block
  • Small cluster - A sprinkle of 5 to 10 adjacent tiles. Multiple small clusters of different materials may be in the same block

The following table does not contain ores and gems. The types of stone listed here that do not link to their own article are generic.v0.27.169.33g

Stone name Found in Found how Icons
Alabaster Gypsum Small clusters ^ ●
Alunite All Igneous extrusive, Kaolinite Large clusters ` ●
Anhydrite Gypsum, Satinspar, Alabaster, Selenite Single v ●
Bauxite All Sedimentary Large clusters + ●
Bituminous coal All Sedimentary Veins ☼ ☼
Borax Gypsum, Rock_Salt Small clusters ` ●
Brimstone All Igneous extrusive, Gypsum Small clusters % ●
Calcite Limestone, Marble Small clusters " ●
Chromite Olivine Veins = ●
Cinnabar All Igneous extrusive, Shale, Quartzite Veins £ *
Cobaltite All Igneous All Metamorphic Veins £ *
Cryolite Granite Small clusters - ●
Graphite Gneiss, Quartzite, Marble, Schist Small clusters o ●
Gypsum All Sedimentary Large clusters # ●
Hornblende All Igneous, All Metamorphic Small clusters " ●
Ilmenite Gabbro Small clusters . ●
Jet All Sedimentary Large clusters ░ ●
Kaolinite All Sedimentary Large clusters = ●
Kimberlite Gabbro Veins % ●
Lignite All Sedimentary Veins * ●
Marcasite Kaolinite Small clusters % ●
Mica All Metamorphic, Granite Large clusters v ●
Microcline All Stone Large clusters % ●
Olivine Gabbro Large clusters % ●
Orpiment All Igneous extrusive Small clusters - ●
Orthoclase All Igneous intrusive, All Metamorphic Large clusters % ●
Periclase Marble Small clusters , ●
Petrified wood All Sedimentary Small clusters % ●
Pitchblende Granite Small clusters * ●
Puddingstone Conglomerate Large clusters Θ ●
Pyrolusite All Igneous Small clusters % ●
Realgar All Igneous extrusive Small clusters % ●
Rutile All Metamorphic, Granite Small clusters ` ●
Saltpeter All Sedimentary Small clusters x ●
Satinspar Gypsum Small clusters - ●
Selenite Gypsum Small clusters ; ●
Serpentine Olivine Small clusters ≈ ●
Stibnite All Igneous extrusive Small clusters % ●
Sylvite Rock salt Large clusters = ●
Talc Dolomite Large clusters | ●

Geology and real life

The geology and stones of Dwarf Fortress are based on real-world geology and mineralogy. To understand the terms used here, you may want to crack open a geology textbook (a high school one should suffice). If you don't happen to have one close by, the Wikipedia articles for geology, mineralogy, or the terms in question might help.

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