Mineral Pseudomorph

Wallboard/Drywall (Gypsum-based)

Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O

Sandstone (Ferruginous)

Arenite (with Iron Oxides)

Turquoise

Hydrated phosphate of copper and aluminum - CuAl6(PO4)4(OH)8·4H2O

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lithium-bearing Phyllosilicate)

Red Sandstone

Sandstone (principally Quartz with Iron Oxide coating)

Red Sandstone

Arenite (primarily Quartz with Hematite cement)

Limonitic Sandstone (Stained Sandstone)

Clastic Sedimentary Rock with Iron Oxide (Limonite/Goethite) staining

Sandstone (with Iron Staining)

Clastic Sedimentary Rock (primarily Quartz, SiO2)

Red Sandstone (Hematitic)

Clastic sedimentary rock (SiO2 with Fe2O3 inclusions)

Sandstone (Ferruginous)

Arenite (with Goethite/Limonite cement)

Sandstone

Arenicola (comprising mostly Quartz, SiO2)

Gossan (Iron Hat) with Quartz and Chlorite

Limonite/Goethite-rich Gossan (FeO(OH)·nH2O) with inclusions of Quartz and Chlorite

Quartz with mica and feldspar (Pegmatite fragment)

Granitic Pegmatite (composed mainly of SiO2 with KAlSi3O8)

Fossilized Shark Tooth (Basal Bone)

Otodus sp. (Mineralized Hydroxyapatite)

Serpentinite

Serpentinite (composed primarily of serpentine-group minerals like antigorite, chrysotile, and lizardite; chemical formula varies but generally Mg3Si2O5(OH)4)

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic Extrusive)

Sandstone (likely Arkosic or Quartzose)

Arenite (SiO2 based with mineral inclusions)

Shale

Shale

Gneiss (likely)

Gneiss

Sandstone (likely Quartzose Sandstone)

Arenite (composed primarily of SiO2)

Turquoise

Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Rough Green Fluorite

Fluorite (Calcium Fluoride - CaF2)

Green Fluorite

Fluorite (Calcium Fluoride - CaF2)

Quartzite with Dark Mineral Inclusions

Quartzite (primarily SiO2) with accessory minerals

Howlite

Howlite (Ca2B5SiO9(OH)5)

Milky Quartz with inclusions

Quartz (Silicon Dioxide, SiO2)

Turquoise

Hydrous phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)

Sandstone (Yellow/Siltstone variant)

Arenite (SiO2 primarily)

Limonitic Iron Ore / Goethite

Hydrated Iron(III) oxide-hydroxide (primarily FeO(OH)·nH2O)

Sandstone (Ferruginous)

Arenite (Fe-rich)

Glauconitic Sandstone

Glauconitic Sandstone (complex silicate formula: (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)

Turquoise

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Malachite

Copper carbonate hydroxide [Cu2CO3(OH)2]

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 oxides)

Sandstone (Ferruginous)

Arenite (Fe2O3 enriched)

Limonite Concretion

Goethite-rich Concretion (FeO(OH))

Turquoise

Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)

Howlite (Tumbled)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2)

Turquoise

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Sandstone

Arenite (composed primarily of SiO2)