40d:Stone

Stone or rock is a naturally occuring solid aggregate of minerals. It sometimes leaves behind boulders after being mined (the drop rate is dependant on the skill of the miner). Other types of minable tiles include soil and sand.

Stone is divided into three key categories:

• Metal ore: stone that produces metal bars when smelted
• Economic stone: coal and stone that is used as a flux, or has other desirable features
• Other stone: stone that is only used for items and structures and has no special features other than color

Metal ore

Metal ores with two possible metals always create the first metal, but have a chance of creating the second metal as well.

Stone name	Found in	Found how	Ore	Value
Native Aluminum	All Igneous Extrusive	Small clusters	Aluminum	40
Bismuthinite	Granite	Small clusters	Bismuth	1
Copper nuggets	All Igneous Extrusive, Sandstone	Veins	Copper	2
Malachite	Limestone, Marble	Veins	Copper	2
Tetrahedrite	All Stone	Veins	Copper, Silver (20%)	3
Gold nuggets	All Igneous All Alluvial	Veins	Gold	30
Hematite	All Sedimentary, All Igneous Extrusive	Veins	Iron	8
Limonite	All Sedimentary	Veins	Iron	8
Magnetite	All Sedimentary	Large clusters	Iron	8
Galena	All Igneous Extrusive, All Metamorphic, Granite, Limestone	Veins	Lead, Silver (50%)	5
Garnierite	Gabbro	Veins	Nickel	2
Platinum nuggets	All Alluvial, Olivine, Magnetite, Chromite	Small clusters	Platinum	40
Horn Silver	Silver	Small clusters	Silver	10
Silver nuggets	Granite, Gneiss	Veins	Silver	10
Cassiterite	All Alluvial, Granite	Veins	Tin	2
Sphalerite	All Metamorphic	Veins	Zinc	2

Economic stone

Economic stones have special uses as fuel or flux, or other uses like making special items. You can use the z : Stone menu to restrict or un-restrict their use in items and buildings.

The Stone menu will also show what each stone can be used for--very useful for figuring out what you need to mine to make that obscure metal your noble is whining about.

Stone name	Found in	Found how	Use	Value	Icons
Calcite	Limestone, Marble	Small clusters	Flux	1	"
Limestone	Sedimentary Layer	Full Layers	Flux	2	▓
Dolomite	Sedimentary Layer	Full Layers	Flux	1	`
Chalk	Sedimentary Layer	Full Layers	Flux	2	░
Marble	Metamorphic Layer	Full Layers	Flux	1	▓
Lignite	All Sedimentary	Veins	2 Coke	1	*
Bituminous coal	All Sedimentary	Veins	3 Coke	1	☼

Other Stone found in layers

All other stones have value 1, except obsidian, which has a value of 3.

Stone name	Layer type	Icons
Sandstone	Sedimentary Layer	# ●
Siltstone	Sedimentary Layer	% ●
Mudstone	Sedimentary Layer	≈ ●
Shale	Sedimentary Layer	. ●
Claystone	Sedimentary Layer	, ●
Rock salt	Sedimentary Layer	# ●
Conglomerate	Sedimentary Layer	∞ ●
Flint	Sedimentary Layer	▓ ●
Chert	Sedimentary Layer	= ●
Quartzite	Metamorphic Layer	- ●
Slate	Metamorphic Layer	% ●
Phyllite	Metamorphic Layer	- ●
Schist	Metamorphic Layer	` ●
Gneiss	Metamorphic Layer	= ●
Granite	Igneous Intrusive Layer	▓ ●
Diorite	Igneous Intrusive Layer	░ ●
Gabbro	Igneous Intrusive Layer	▒ ●
Rhyolite	Igneous Extrusive Layer	, ●
Basalt	Igneous Extrusive Layer	# ●
Andesite	Igneous Extrusive Layer	∞ ●
Felsite	Igneous Extrusive Layer	. ●
Obsidian	Igneous Extrusive Layer	▒ ●

Other Stone found in clusters/veins

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	+
Borax	Gypsum, Rock_Salt	Small clusters	`
Brimstone	All Igneous Extrusive, Gypsum	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	%
Marcasite	Kaolinite	Small clusters	%
Mica	All Metamorphic, Granite	Large clusters	v
Microcline	All 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	é
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	|