Sedimentary Mineral

Fancy Jasper

Silicon Dioxide (SiO2)

Yellow Quartz (Citrine Quartz variety / Ferruginous Quartz)

Silicon Dioxide (SiO2) with iron inclusions

Quartz

Silicon dioxide (SiO2)

Shale

Shale (comprised mostly of clay minerals and quartz)

Quartz (Common or Milky)

Silicon Dioxide (SiO2)

Banded Gneiss

Gneiss

Red Jasper

Quartz (Silicon Dioxide) with Hematite inclusions, SiO2

Precious Opal in Matrix

Hydrated Silica (SiO2·nH2O)

Sandstone (specifically Red Sandstone)

Arenite (primarily Quartz, SiO2)

Sandstone

Arenite (SiO2 based)

Jasper (likely a variety of Brecciated Jasper or a patterned variety)

Silicon dioxide (SiO2)

Travertine (Ceramic Tile)

Terrestrial Sedimentary Rock / Calcium Carbonate (CaCO3)

Chert (Red Jasper variant)

Microcrystalline Quartz (SiO2)

Red Sandstone

Arenite (with Iron Oxide / Hematite staining)

Red Sandstone

Arenite (with Iron Oxide pigmentation)

Pyrite

Iron Disulfide (FeS2)

Hematite

Iron (III) Oxide (Fe2O3)

Quartz (Milky or Druzy Quartz)

Silicon Dioxide (SiO2)

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrous ferric oxide)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Shale with Vein Infillings

Shale (a fine-grained clastic sedimentary rock). The veins could be Calcite (CaCO3), Quartz (SiO2), or other minerals.

Banded Iron Formation (BIF) / Tiger Iron variety

Banded Iron Formation (predominantly Hematite, Magnetite, and Chert/Quartz - SiO2 + Fe2O3)

Chert Pebble (Jasper/Quartz variety)

Microcrystalline Quartz (SiO2)

Sandstone (Quartzose)

Arenite (SiO2 principal)

Septarian Nodule (Septarian Dragon Stone)

Septarian concretion (composition: Calcite CaCO3, Aragonite CaCO3, and Limestone/Clay)

Limestone

Calcium Carbonate (CaCO3)

Sandstone (Ferruginous)

Arenite (variable SiO2 with Fe2O3 staining)

Sandstone (Ferruginous)

Sandstone (mainly SiO2 with Fe2O3 staining)

Sandstone (likely Greywacke or Lithic Sandstone)

Arenite / Wacke

Sandstone

Arenite (primarily composed of SiO2)

Pyrite

Iron Disulfide (FeS2)

Turquoise

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

Milky Quartz (Vein Quartz)

Silicon Dioxide (SiO2)

Sandstone Concretion

Clastic Sedimentary Concretion (primarily SiO2 with Fe2O3 cement)

Shale or Slate with Quartz Veins

Shale (fine-grained clastic sedimentary rock) or Slate (low-grade metamorphic rock formed from shale) with Quartz (SiO2) veins

Sandstone (Quartzose Sandstone)

Clastic sedimentary rock (SiO2 major component)

Blue Calcite

Calcium Carbonate (CaCO3)

Cinnabar in Matrix

Cinnabar (Mercury(II) sulfide, HgS)

Botryoidal Chalcedony (likely Chert or Agatized Coral)

Silicon Dioxide (SiO2)

Quartz Conglomerate

Quartz Conglomerate (clastic sedimentary rock)

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2)

Celestite (Celestine)

Strontium sulfate (SrSO4)