Mineral On Sedimentary Rock

Sandstone with Liesegang Rings

Arenite with secondary Iron oxide (Limonite/Goethite) precipitation

Chert Pebble

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Howlite and Purple Amethyst Druzy

Calcium Borosilicate Hydroxide (Howlite) and Silicon Dioxide (Quartz/Amethyst)

Orange Calcite

Calcium Carbonate (CaCO3)

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)

Gold Grain

Native Gold (Au)

Granite Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Diabase (Dolerite) Cobble

Diabase / Dolerite

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

Quartz Vein / Milky Quartz

Silicon Dioxide (SiO2)

Chert (Pink Jasper/Agate variety)

Microcrystalline Quartz (SiO2)

Lazulite

Lazulite (Mg,Fe2+)Al2(PO4)2(OH)2

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Chert (Arrowhead variety)

Chert (SiO2)

Fossiliferous Limestone with Rugose Coral

Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)

Chert (Iron-stained)

Chert (Silicon Dioxide, SiO2)

Limonite (Iron Ore)

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

Banded Iron Formation (BIF)

Banded Iron Formation

Schist

Mica Schist (Medium-grade Metamorphic Rock)

Banded Agate (specifically Carnelian Agate)

Silicon dioxide (SiO2) - Chalcedony variety

Chert (Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Pyrite

Iron Sulfide (FeS2)

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Limonite

Limonite (Hydrous iron oxides, predominantly Goethite FeO(OH)·nH2O)

Biotite Mica

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

Banded Chert (River Siltstone)

Microcrystalline Quartz (SiO2)

Wishing Stone (Sandstone with Quartz Vein)

Arenite with Quartzite intrusion (SiO₂)

Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (specifically Yellow Jasper)

Sedimentary Cryptocrystalline Quartz (SiO2)

Yellow Calcite

Calcium Carbonate (CaCO3)

Quartz Pebble

Silicon Dioxide (SiO2)

Orange Calcite

Calcium Carbonate (CaCO3)

Orange Calcite and White Calcite

Calcium Carbonate (CaCO3)

Basalt with Mineral Vein (Cobble)

Basalt (with likely Quartz/Calcite vein)

Granite

Granite (Felsic Plutonic Rock)

Granite featuring Quartz Vein

Granite with hydrothermal silica (SiO2) intrusion

Chert (Nodular)

Chert (Microcrystalline Quartz, SiO2)

Chert (River Pebble)

Microcrystalline quartz (SiO2)

Chert (Jasper/Chalcedony)

Microcrystalline Quartz (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Unakite

Unakite (Metasomatized Granite)

Agate (Polished Nodule)

Agate (Silicon Dioxide, SiO2)