Igneous And Sedimentary Mixture

Quartz / Limestone Gravel

SiO2 (Silicon Dioxide) and CaCO3 (Calcium Carbonate)

Chalcedony (Agate/Quartz variety)

Cryptocrystalline Quartz (SiO2)

Dalmatian Jasper

Dalmatian Stone (a microcrystalline quartz and feldspar rock with arfvedsonite)

Dalmatian Stone (commonly Dyed)

Dalmatian Jasper (Peralkaline igneous rock)

Granite Sand (Decomposed Granite)

Grus / Quartz-Feldspar Detritus

Dalmatian Stone

Dalmatian Jasper (a misnomer) / Perthitic Igneous Rock

Limonite / Ironstone Nodule

Limonite (Hydrated iron(III) oxide-hydroxide), FeO(OH)·nH2O

Limonite-stained Chert/Jasper

Microcrystalline Quartz (SiO2) with Iron Oxides (FeO(OH)·nH2O)

Blue Apatite

Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)

Bumblebee Jasper

Calcite with Arsenic and Manganese oxides (technically a volcanic rock)

Limonite Sandstone

Ferruginous Sandstone (Hydrated Iron Oxide)

Limonite (Ironstone Concretion)

Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)

Raw Corundum (Sapphire/Ruby variant)

Aluminum oxide (Al2O3)

Conglomerate (Asphaltic/Anthropogenic)

Clastic sedimentary rock / Bituminous mixture

Bauxite (Concretionary)

Bauxite (Al(OH)3, AlO(OH))

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Limonitic Iron Ore / Goethite

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

Bumblebee Jasper

Volcanic Tuff (mixture of Quartz, Sulfur, Hematite, and Orpiment)

Limonite/Goethite (Iron Ore)

Hydrous ferric oxides (FeO(OH)·nH2O)

Rainbow Moonstone with Black Tourmaline

White Labradorite with Schorl (Na,Ca)(Al,Si)4O8

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Diorite (Polished Cobble)

Diorite (Intermediate intrusive igneous rock)

Limonite (Ironstone Concretion)

Limonite (Hydrous ferric oxide mixture, FeO(OH)·nH2O)

Bauxite

Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))

Limonite

Limonite (FeOO·nH2O)

Bauxite (Aluminum Ore)

Hydrated aluminum oxides, primarily Al(OH)3, AlO(OH)

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)

Limonite (Iron Ore)

Goethite and related iron hydroxides (FeO(OH)·nH2O)

Limonite (Ironstone)

Hydrated Iron Oxide (FeO(OH)·nH2O)

Limonite (Iron Stone/Ocher)

Limonite (FeO(OH)·nH2O)

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrous ferric oxide)

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrous ferric oxide)

Bauxite

Bauxite (Al2O3·nH2O)

Limonite (Iron Ore)

Limonite (̑FeO(OH)·nH₂O)

Limonite Concretion (Ironstone)

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

Oolitic Ironstone

Sedimentary Ooidal Ironstone (Limonite/Hematite mixture)

Diorite

Diorite (Intermediate intrusive igneous rock)

Nuummite

Nuummite (mixture of Anthophyllite and Gedrite)

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Tiger Iron / Banded Iron Formation

Banded Iron Formation (SiO2 with Fe2O3 and FeOOH)

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Limonite (Iron Ore)

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