Minerals

Quartz with Schorl inclusions

Silicon Dioxide (SiO2) with Sodium Iron Aluminum Borosilicate Hydroxide (Black Tourmaline)

Pyromorphite

Pyromorphite (Pb5(PO4)3Cl)

Fluorite (Fluorescent)

Calcium Fluoride (CaF2)

Olivine (Peridotite)

Magnesium iron silicate (Mg, Fe)2SiO4

Amygdaloidal Basalt with Quartz/Zeolite Infill

Amygdaloidal Basalt (extrusive volcanic rock with SiO2 or CaAl2Si3O10·3H2O infill)

Fossilized Shark Tooth (Otodus obliquus)

Otodus obliquus (Mineral: Fluorapatite)

Quartz-bearing Ore (likely Gold-bearing Quartz)

Quartz (SiO2) with potential sulfide mineralization (Pyrite/Arsenopyrite)

Seashell (Calcium Carbonate)

Calcium Carbonate (CaCO3)

Granite

Granite

Gneiss

Gneiss

Limonite and Goethite

Limonite (hydrated iron(III) oxide-hydroxide) and Goethite (α-FeO(OH))

Mica Schist

Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)

Granite

Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)

Green Aventurine

Aventurine Quartz (SiO2 with inclusions of Fuchsite mica)

Limonite (often after Pyrite)

Limonite (FeO(OH)·nH2O)

Red Ochre (Hematite-rich Clay)

Limonitic/Hematitic Claystone (Fe2O3 with clay minerals)

Jasper or Agate with Chlorite Inclusions

Silicon Dioxide (SiO2) with Chlorite group minerals

Septarian Nodule (Thunder Egg variant)

Septarian concretion (Calcite, Aragonite, and Limestone)

Lapis Lazuli (in Matrix)

Lazurite-bearing Metamorphic Rock (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2

Chrysocolla

Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O)

Schist (with Iron Oxide)

Mica Schist

Limonite with Goethite

Iron Hydroxide Mixture (FeO(OH)·nH2O)

Green Aventurine

Silicon dioxide (SiO2) with inclusions of Fuchsite mica

Limonite (Iron Ore)

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

Blue Quartz

Quartz (Silicon Dioxide) with inclusions, SiO2

Turquoise or Chrysocolla (Inlaid Jewelry)

Hydrated copper aluminum phosphate / Hydrated copper phyllosilicate

Limonite with Hematite

Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)

Ironstone Concretions (Ironstone)

Ferruginous Sandstone or Siltstone (Fe2O3)

Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Limonite (Gossan)

FeO(OH)·nH2O (Hydrated Iron Oxide)

Turquoise

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

Malachite

Copper carbonate hydroxide [Cu2CO3(OH)2]

Kidney Stone

Nephrolith (typically Calcium Oxalate - CaC2O4)

Green Moonstone (Garnierite)

Nickel-bearing Magnesium Silicate (often a mix of Serpentine and Talc/Chlorite groups)

Pyrite in Matrix

Iron Sulfide (FeS2)

Biotite (Mica)

Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)

Potassium Feldspar

Orthoclase (KAlSi3O8)

Greenstone

Greenschist (metamorphosed mafic igneous rock)

Limonite (Iron Ore/Bog Iron)

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

Glauconitic Sandstone (or Greenstone)

Glauconitic Sandstone with Quartz

Moss Agate Geode Sphere

Silicon Dioxide (SiO2) - Chalcedony with Chlorite or Manganese inclusions