Quartz (Common or Milky)
Silicon Dioxide (SiO2)
mineral
Category
Mineral Health
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Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Yellow Aventurine (Yellow Quartzite)
Silicon Dioxide (SiO2) with inclusions
metamorphic
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Vesicular Basalt with Lichen
Vesicular Basalt
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
Mineral in Metamorphic/Igneous Host
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Quartz (Grain/Pebble)
Silicon Dioxide (SiO2)
mineral
Limonite (Iron Stone/Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Flower Agate
Chalcedony (cryptocrystalline Quartz) with Spherulite inclusions; SiO2
mineral
Rhodochrosite
Manganese Carbonate (MnCO3)
mineral
Amphibolite
Amphibolite
metamorphic
Banded River Rock / Gneiss (highly weathered)
Gneiss
Metamorphic rock
Quartz (Citrine or Smoky variant)
Silicon Dioxide (SiO2)
mineral
Assorted Decorative Tumbled Stones (Quartz, Sodalite, Aventurine, Calcite)
Mixed Silicates and Carbonates (SiO2, Na8(Al6Si6O24)Cl2, CaCO3)
mineral
Blue Apatite
Apatite, Ca5(PO4)3(F,Cl,OH)
mineral
![Native Copper with Malachite and Chrysocolla (Native Copper (Cu) with Malachite [Cu2CO3(OH)2] and Chrysocolla [(Cu,Al)2H2Si2O5(OH)4·nH2O]) — mineral](https://media.rockidentification.com/6ef339a6-a6eb-4aa3-8f16-7b2b668937bc-thumbnail.jpg)
Native Copper with Malachite and Chrysocolla
Native Copper (Cu) with Malachite [Cu2CO3(OH)2] and Chrysocolla [(Cu,Al)2H2Si2O5(OH)4·nH2O]
mineral
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Turquoise
Hydrous phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Sandstone (Yellow/Siltstone variant)
Arenite (SiO2 primarily)
sedimentary
Sandstone
Arenite
sedimentary
Dendritic Agate
Silicon Dioxide (SiO2) with Manganese/Iron Oxide inclusions
mineral
Limonitic Iron Ore / Goethite
Hydrated Iron(III) oxide-hydroxide (primarily FeO(OH)·nH2O)
sedimentary
Sandstone (Ferruginous)
Arenite (Fe-rich)
sedimentary
Sandstone with Iron Staining
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
sedimentary
![Malachite (Copper carbonate hydroxide [Cu2CO3(OH)2]) — Mineral](https://media.rockidentification.com/3d00f6c6-39a3-4b59-b480-0a0e71150910-thumbnail.jpg)
Malachite
Copper carbonate hydroxide [Cu2CO3(OH)2]
Mineral
Sandstone (Red)
Arenite (composed primarily of SiO2)
sedimentary
Glauconitic Sandstone
Glauconitic Sandstone (complex silicate formula: (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)
sedimentary
![Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral](https://media.rockidentification.com/8e928afb-bd26-4377-ab19-28fd017f7b9f-thumbnail.jpg)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
mineral
Sandstone
Arenite
sedimentary
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 oxides)
sedimentary
Sandstone (Ferruginous)
Arenite (Fe2O3 enriched)
sedimentary
Limonite Concretion
Goethite-rich Concretion (FeO(OH))
sedimentary
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
mineral
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Howlite (Tumbled)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
![Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral](https://media.rockidentification.com/92ebc6b5-08ac-4229-a727-57a096ec7f2c-thumbnail.jpg)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
mineral
Sandstone (Wonderstone)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary