Lepidolite
K(Li,Al)3(Si,Al)4O10(F,OH)2
mineral
Category
Minerals
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Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Assorted Decorative Tumbled Stones (Quartz, Sodalite, Aventurine, Calcite)
Mixed Silicates and Carbonates (SiO2, Na8(Al6Si6O24)Cl2, CaCO3)
mineral
Quartz-Veined Mudstone
Argillaceous Mudstone with Quartz Veining
sedimentary
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Limonite
FeO(OH)·nH2O
mineral
Quartz with Mica inclusions (Pegmatite)
Silicon Dioxide (SiO2) with Muscovite/Biotite inclusions
igneous
Granite
Granite
Igneous
Schist
Schist
Metamorphic
Limonite / Ironstone
Hydrated ferric oxide (FeO(OH)·nH2O)
mineral
Shale (or Mudstone)
Clay mineral aggregate / Fine-grained siliciclastic sedimentary rock
sedimentary
Pegmatite (Quartz and Feldspar)
Igneous Pegmatite containing SiO2 and KAlSi3O8
igneous
Lepidolite
K(Li,Al)3(Al,Si,IV)4O10(F,OH)2
mineral
Greenstone / Greenschist
Greenschist facies metamorphic rock
metamorphic
Quartz-rich pegmatite, possibly with mica
Granite/pegmatite composed mainly of quartz (SiO₂), feldspar, and likely biotite or muscovite mica
igneous
Quartz-bearing Pegmatite with Metallic Sulfides
Pegmatite / Quartz-Feldspar Matrix with Pyrite and Mica
igneous
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Shark Tooth Fossil
Carcharodonta (order Lamniformes), likely Carcharias spp.
fossil
Granite
Felsic intrusive igneous rock
igneous
Fossil Coral
Fossilized Scleractinia or Tabulata (various genera/species)
Sedimentary
Limonite
FeO(OH)·nH2O
mineral
Selenite (variety of Gypsum)
Calcium sulfate dihydrate (CaSO4·2H2O)
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Limonite Sandstone
Ferruginous Sandstone (Hydrated Iron Oxide)
sedimentary
Chrysocolla in Quartz
Chrysocolla (Cu,Al)2H2Si2O5(OH)4·nH2O in Quartz (SiO2)
gemstone
Unakite
Altered Granite (Epidotized Granite)
metamorphic
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Dyed Agate
Chalcedony (SiO2)
Mineral
Yellow Ocher / Limonite
FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)
mineral
Pink Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Malachite
Malachite, Cu2CO3(OH)2
mineral
Greenschist
Greenschist (Chlorite-actinolite schist)
metamorphic
Limonite / Goethite (Ironstone)
Hydrated Iron(III) Oxide-Hydroxide FeO(OH)wnH2O
sedimentary
Staurolite
Staurolite (Fe2Al9O6(SiO4)4(O,OH)2)
mineral
Granite, possibly granodiorite
Coarse-grained felsic plutonic rock; chiefly quartz (SiO₂), potassium feldspar and plagioclase feldspar, with biotite and/or hornblende
igneous
Pink Himalayan Salt Rock
Halite (NaCl with trace iron oxide minerals)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Raw quartz crystal cluster (likely chalcedony/quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Green Fuchsite and Quartz
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
metamorphic
Granite
Intrusive Felsic Igneous Rock
igneous
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Septarian Nodule (Sphere)
Septarian (composed of Calcite, Aragonite, and Limestone/Claystone)
sedimentary