Igneous Or Sedimentary

Magnetite (Lodestone)

Magnetite (Fe3O4)

Dalmation Stone (Dalmation Jasper)

Peralkaline rock (primarily Feldspar and Quartz with Arfvedsonite spots)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Magnetite Sand (Black Sand)

Magnetite (Fe3O4)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Pyrite

Iron Sulfide (FeS2)

White Quartz (Milky Quartz)

Quartz (Silicon Dioxide - SiO2)

Quartz on Matrix

Silicon Dioxide (SiO2)

Magnetite

Magnetite (Fe3O4)

Dalmatian Stone (often misnamed Dalmatian Jasper)

Aplite (with hornblende/arfvedsonite inclusions)

Milky Quartz in Matrix

Silicon Dioxide (SiO2)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Dalmatian Stone (Dalmatian Jasper)

Dalmatian Stone (A variety of Perthite / Aplite)

Pebble (likely Quartz or Chert)

SiO₂ (Silicon Dioxide) - referring to the likely main mineral composition, Quartz. If it's chert, the scientific name remains SiO₂ with a microcrystalline structure.

Dalmatian Stone

Peralkaline rhyolite

Red Garnet (likely Almandine or Pyrope)

Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)

Quartz Crystal Fragment

Silicon Dioxide (SiO2)

Garnet (specifically Almandine)

Almandine - Fe3Al2(SiO4)3

Dalmatian Stone (often called Dalmatian Jasper)

Peralkaline Feldsphathic Igneous Rock

Sandstone or Mudstone with Iron Staining

Ferruginous Sandstone/Mudstone

Pyrite

Iron Sulfide (FeS2)

Pyrite and Sunstone

Iron Sulfide (FeS2) and Plagioclase Feldspar ((Ca,Na)Al(Al,Si)Si2O8)

Carnelian

Carnelian (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Dalmatian Jasper / Dalmatian Stone

Peralkaline Rock (Silicon Dioxide with Amphibole inclusions)

Dalmatian Stone

Peralkaline rhyolite with arfvedsonite (formerly incorrectly called Dalmatian Jasper)

Dark Igneous Rock (Likely Basalt or Diabase)

Basalt (extrusive igneous rock) or Diabase (intrusive igneous rock - also known as Dolerite), largely composed of plagioclase feldspar, pyroxene (augite), and sometimes olivine and amphibole. Exact mineralogy would require thin section analysis.

Dalmatian Stone (commonly Dyed)

Dalmatian Jasper (Peralkaline igneous rock)

Dalmatian Stone

Dalmatian Jasper (actually a Peralkaline Igneous Rock)

Pyrite

Iron Pyrite (FeS₂)

Dalmatian Stone

Dalmatian Jasper (Aphanitic Igneous Rock with Arfvedsonite inclusions)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Yellow Calcite

Calcite (Calcium Carbonate, CaCO3)

Hematite

Hematite, Iron(III) oxide (Fe2O3)

Agate

Banded Chalcedony (SiO2)

Dalmatian Stone

Dalmatian Jasper (Aplitic Rock)

Quartz (Milky or Cloudy Quartz)

Silicon Dioxide (SiO2)

Milky Quartz Pebble with Chert

Silicon Dioxide (SiO2)

Pink Garnet (likely Almandine or Rhodolite)

Garnet Group (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)

Quartz (Drusy/Crystalline)

Silicon Dioxide (SiO2)