Igneous, Sedimentary, Or Metamorphic (Mineral Based)

Limestone

Sedimentary rock composed of Calcium Carbonate (CaCO3)

Hematite Nodule

Hematite (Fe2O3)

Granite

Phaneritic Plutonic Felsic Rock (KAlSi3O8 - SiO2 - NaAlSi3O8)

Fluorite with Quartz coating

Calcium Fluoride (CaF2) with Silicon Dioxide (SiO2)

Precious Opal

Hydrated Silica (SiO2·nH2O)

Sandstone (Graywacke type)

Clastic Sedimentary Rock (Lithic Sandstone)

Ferruginous Sandstone (Ironstone Nodules)

Ferruginous Sandstone with Limonite/Goethite coating (Fe2O3·H2O)

Dragon Blood Jasper

Epidote with Pietersite or Red Jasper (Ca2Al2Fe3+[Si2O7][SiO4]O(OH))

Granodiorite / Granite

Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)

Limestone with Quartz/Calcite Veins

Sedimentary Limestone (CaCO3 with SiO2 or CaCO3 intrusions)

Dragon Blood Jasper (Lizard Stone/Septarian Chalcedony)

Epidote with Black Hornblende and White Quartz mixture

Nuummite

Nuummite (mixture of Anthophyllite and Gedrite)

Ferruginous Sandstone (Gozzan/Ironstone)

Arenite with Limonite/Goethite cement (FeO(OH)·nH2O)

Basalt

Basalt (Mafic Extrusive)

Pyrite

Iron Sulfide (FeS2)

Opalite

Synthetic Opalised Glass

Greenschist

Greenschist (chlorite-epidote schist)

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Marble

Recrystallized Calcite / Dolomite (CaCO3)

Sandstone (Weathered Pebble)

Arenite (composed primarily of SiO2)

Clear Quartz (beads in a bracelet)

Quartz (SiO2)

Massive Quartz with Host Rock

Silicon Dioxide (SiO2)

Serpentine

Serpentinite (group of minerals: (Mg,Fe,Ni,Al)3Si2O5(OH)4)

Basalt with Quartz Veins

Basalt (SiO2 range 45-52%)

Basalt with Plagioclase Phenocrysts

Porphyritic Basalt (primarily SiO2, MgO, FeO, and CaO)

Blue Kyanite

Kyanite (Al2SiO5)

Dalmation Stone

Peralkaline Rock (SiO2 with Arfvedsonite)

Sandstone Cobble

Clastic Sedimentary (Sandstone)

Greenschist

Greenschist (Major minerals include Chlorite, Actinolite, and Epidote)

Sandstone (with potentially high Feldspar/Arkose content)

Clastic sedimentary rock (SiO2 dominated)

Green Schist

Greenschist (composed of Chlorite, Actinolite, and Epidote)

Pyrite (Fool's Gold) Cube

Iron Sulfide (FeS2)

Specular Hematite (Iron Ore)

Iron(III) oxide (Fe2O3)

Almandine Garnet

Almandine (Fe3Al2Si3O12)

Moonstone

Orthoclase (KAlSi3O8), specifically the variety showing adularescence

Sandstone (likely Greywacke or Siltstone variety)

Arenite / Siltstone (primarily SiO2)

Dalmatian Stone

Dalmatian Stone (a peralkaline igneous rock consisting of Feldspar, Quartz, and Arfvedsonite)

Limestone

Calcium Carbonate (CaCO3)

Dragon Blood Jasper

Epidote-rich Quartzite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))

Almandine Garnet in Matrix

Almandine, Fe3Al2(SiO4)3

Red Granite

Phaneritic Felsic Igneous Rock

Sandstone (likely Siltstone)

Arenite or Siltstone (high SiO2 content)