40d:Felsite

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Felsite

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Uses
Masonry Stone crafting Construction
Properties
Igneous extrusive layer Material value 1
Contains
Hematite (Veins) Native gold (Veins) Native copper (Veins) Tetrahedrite (Veins) Native aluminum (Small Clusters) Galena (Veins) Brimstone (Small Clusters) Realgar (Small Clusters) Orpiment (Small Clusters) Stibnite (Small Clusters) Rutile (Small Clusters) Hornblende (Small Clusters) Alunite (Large Clusters) Microcline (Large Clusters)
Wikipedia article

Felsite is one of the types of stone that forms entire layers.

It is currently^{v0.28.181.40d} identical in all ways to 3 of the other 4 igneous extrusive stones: andesite, basalt, and rhyolite (obsidian being the sole exception).

"Felsite" is also the name of the third month of the dwarven calendar, covering late Spring.

Stone
Sedimentary	Sandstone • Siltstone • Mudstone • Shale • Claystone • Rock salt • Limestone • Conglomerate • Dolomite • Flint • Chert • Chalk
Igneous I.	Granite • Diorite • Gabbro
Igneous E.	Rhyolite • Basalt • Andesite • Felsite • Obsidian
Metamorphic	Quartzite • Slate • Phyllite • Schist • Gneiss • Marble
Unique	Bauxite • Lignite • Bituminous coal • Graphite • Kimberlite
Ore	Bismuthinite • Cassiterite • Copper nuggets • Galena • Garnierite • Gold nuggets • Hematite • Horn silver • Limonite • Magnetite • Malachite • Native aluminum • Platinum nuggets • Raw adamantine • Silver nuggets • Sphalerite • Tetrahedrite