Igneous intrusive layer

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Igneous intrusive stone layers can consist of granite, diorite, or gabbro, all of which typically contain gold and tetrahedrite.

Gabbro can also contain garnierite (the ore of nickel), kimberlite (which may contain diamonds), and olivine (which may contain native platinum). Granite can contain cassiterite (the ore of tin), bismuthinite (the ore of bismuth), and galena (the ore of lead, plus a 50% chance of silver).

Igneous intrusive layers

• Granite
• Diorite
• Gabbro

Stone found in igneous intrusive layers

• Hematite (small clusters)
• Magnetite (small clusters)
• Orthoclase (large clusters)

Stone appearing in both igneous intrusive and igneous extrusive layers

• Native gold (veins)
• Cobaltite (veins)
• Pyrolusite (small clusters)
• Hornblende (small clusters)

Gems found in igneous intrusive layers

• Lapis lazuli (small clusters)

Gems appearing in both igneous intrusive and igneous extrusive layers

• Black zircon (small clusters)
• Green zircon (small clusters)
• Red zircon (small clusters)
• Brown zircon (small clusters)
• Yellow zircon (small clusters)
• Clear zircon (small clusters)

* See also: stone found everywhere

In the real world

Igneous intrusive stone is formed by magma solidification occurring below the surface, as opposed to igneous extrusive stone which forms above the surface of the earth.

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