Ironstone (Limonite/Hematite concretion)
Ferruginous Siltstone / Goethite (FeO(OH))
sedimentary
Category
Metamorphic (Low Grade)
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Limonite (Ironstone) Concretion
FeO(OH)·nH2O (Hydrous ferric oxide)
sedimentary
Limonite (Iron Ore)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
mineral理论上属于沉积成因
Limonite Concretion (Ironstone)
Limonite / Goethite (FeO(OH)·nH2O)
sedimentary
Ironstone Concretion
Goethite-rich Siltstone / Siderite (FeCO3)
sedimentary
Limonite Concretion (Ironstone)
Limonite (Hydrated Iron(III) Oxide-Hydroxide, FeO(OH)·nH2O)
sedimentary
Ironstone Concretion (Siderite Nodules)
Siderite (FeCO3) in Mudstone or Sandstone matrix
sedimentary
Siltstone
Siltstone (primarily SiO2 with Al2O3)
sedimentary
Ferruginous Sandstone
Arenite with Iron-Oxide Cement (FeO(OH)·nH2O / Fe2O3)
sedimentary
Ironstone Concretion (Coprolite-like)
Goethite/Hematite Siderite Spheroid (FeCO3 or FeO(OH))
sedimentary
Milky Quartz with Dendritic Inclusions
Silicon Dioxide (SiO2)
mineral
Ironstone Concretion
Siderite or Hematite Concretion (FeCO3 or Fe2O3)
sedimentary
Siltstone
Siltstone
sedimentary
Limonite Sandstone
Ferruginous Sandstone (Hydrated Iron Oxide)
sedimentary
Limonite-stained Gossan/Ironstone
Goethite and Hematite (Fe2O3 • nH2O)
sedimentary
Limonite (Iron Ore)
Hydrated ferric oxide (FeO(OH)·nH2O)
sedimentary
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Ironstone Concretion (Limonite/Goethite)
Iron oxide concretion (contains FeO(OH)·nH2O)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Concretion
Siderite or Ironstone Concretion
sedimentary
Quartz-Veined Mudstone
Argillite or Mudstone with Quartz Veining (SiO2 in Siliciclastic Matrix)
sedimentary
Sandstone (Ferruginous Concretion)
Ferruginous Sandstone Concretion / SiO2 with Fe2O3 cement
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Ferruginous Sandstone
Arenite with limonite/goethite cement
sedimentary
Ferruginous Sandstone (Ironstone)
Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)
sedimentary
Ferruginous Sandstone
Arenite with Iron-Oxide Cement
sedimentary
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Limonite (Ironstone)
Limonite (FeO(OH)·nH2O)
mineral
Ferruginous Sandstone (Ironstone)
Sedimentary rock with Limonite/Goethite cement
sedimentary
Ferruginous Sandstone Concretion (Ironstone Phosphorite)
Ferruginous Sandstone (variable Fe-oxide/hydroxide composition)
sedimentary
Prehnite
Prehnite, Ca2Al(AlSi3O10)(OH)2
mineral
Dragon Blood Jasper
Quartz (SiO2) with Epidote and Piedmontite inclusions
sedimentary
Blue Cracked Quartz (Dyed Fire Crackle Quartz)
Silicon Dioxide (SiO2) with synthetic dye
mineral
Siltstone
Siltstone (primarily SiO2 with clay minerals)
sedimentary
Muscovite Schist
Mica Schist (KAl2(AlSi3O10)(OH)2)
metamorphic
Sandstone (Quartzite-rich)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Turquoise (likely Sleeping Beauty variety or treated Howlite imitation)
Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O
mineral
Turquoise
Hydrated phosphate of copper and aluminum - CuAl6(PO4)4(OH)8·4H2O
mineral
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
![Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral](https://media.rockidentification.com/98a2a2f8-be01-4831-a944-de6fd3830399-thumbnail.jpg)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
mineral
Vesicular Basalt (Aqueous Tumbled)
Scoriaceous Basalt
igneous
Limonitic Gossan
Goethite/Limonite aggregate after sulfide
igneous and metamorphic derivative (weathered)