Mineral On Sedimentary Rock

Ferruginous Sandstone (Gritstone)

Clastic sedimentary rock with iron-rich cement (FeO(OH)·nH2O)

Graphite-veined Quartzite

Meta-sedimentary Quartzite with Carbonaceous/Graphitic Inclusions (SiO2 + C)

Dalmatian Stone

Dalmatian Jasper (actually a Peralkaline Igneous Rock)

Petrified Wood

Silicified Wood (SiO2)

Muscovite Mica

Muscovite (Potassium Mica) KAl2(AlSi3O10)(OH)2

Quartz (Druzy Quartz)

Silicon Dioxide (SiO2)

White Quartz

Quartz (SiO2)

Graphite

Graphite (Carbon, C)

Quartz Veined Siltstone or Graywacke

Clastic Sedimentary Rock with Quartz (SiO2) veining

Quartz

Quartz (Silicon Dioxide - SiO2)

Chert (Honey Chert or Chalcedony Pebble)

Cryptocrystalline Quartz (SiO2)

River Siltstone Pebble

Siltstone (primarily composed of silica and clay minerals)

Quartz Druzy (on Matrix)

Silicon Dioxide (SiO2)

Banded Iron Formation

Banded Iron Formation (BIF)

Limestone

Calcium Carbonate (CaCO3)

Chert

Microcrystalline Quartz (SiO2)

Jasper Chert Nodules

Silicon Dioxide (SiO2) with Hematite impurities

Travertine

Calcareous Tufa / Travertine (CaCO3)

Unakite

Epidotized Granite

Red Sandstone (Iron-rich)

Ferruginous Sandstone (variable formula, primarily SiO2 + Fe2O3)

André's Landing Rock (Sandstone Boulder)

Newark Supergroup Sandstone (likely Stockton Formation)

Pyrite in Shale

Iron Disulfide (FeS2) in Argillaceous Shale

Chert (and Flint variant)

Microcrystalline Quartz (SiO2)

Chert (often called Flint or Jasper)

Chert (Microcrystalline or Cryptocrystalline Silica, SiO2)

Chert (Flint/Jasper variety)

Microcrystalline Quartz (SiO2)

Hag Stone

Siltstone or Fine-grained Sandstone with boring (e.g., Lithophaga impact)

River Rock (River Cobbles)

Fluvial Conglomerate Clasts (primarily composed of various minerals such as Quartz, SiO2)

Glauconitic Sandstone (Greensand)

Glauconitic Quartz Arenite (Formula: (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)

Slate with Quartz Vein

Foliated Metamorphic Rock (Mainly Quartz, Muscovite, Chlorite)

Yellow Jasper (within host rock)

Silicon Dioxide (SiO2) with iron hydroxides (Goethite)

Ferruginous Conglomerate

Conglomerate with Iron-Oxide Matrix (SiO2 + Fe2O3/FeO(OH))

Quartz (Pale Rose or Milky Variety)

Silicon Dioxide (SiO2)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Bauxite

Alumina-rich rock (consisting of Gibbsite, Boehmite, and Diaspore)

Quartz Vein in Sandstone

Sandstone with Hydrothermal Quartz (SiO2)

Chert (with Quartz vein)

Chert (Silicon Dioxide, SiO2)

Chalk (Calcitic)

Calcium Carbonate (CaCO3) - Biogenic Sedimentary Rock

Chert

Chert (microcrystalline quartz, SiO2)

Limestone

Calcite (CaCO3)

Septarian Nodule Segment (Commonly known as Dragon Stone or Lightning Stone)

Septarian Nodule (CaCO3 / Hydrated Calcium Carbonate)

Ferruginous Sandstone Pebble

Arenite with Iron-Oxide Cement (SiO2 with Fe2O3/FeO(OH) staining)

Dalmatian Stone (Dalmatian Jasper)

Dalmatian Stone (A variety of Perthite / Aplite)