Quartz Geode (with Calcite influence)
Silicon Dioxide (SiO2) with possible Calcium Carbonate (CaCO3)
mineral
Category
Igneous, Metamorphic, And Sedimentary
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Hematite
Hematite, Iron(III) oxide (Fe2O3)
mineral
Agate
Banded Chalcedony (SiO2)
mineral
Hematite Ball
Iron(III) oxide (Fe2O3)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Dalmatian Jasper (Dyed Blue)
Peralkaline Rock with Arfvedsonite and Blue Dye
igneous
Dalmatian Stone
Dalmatian Jasper (Aphanitic Igneous Rock with Arfvedsonite inclusions)
igneous
Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Dalmatian Stone
Dalmatian Stone (formerly called Dalmatian Jasper)
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Pink Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite in Matrix
Iron Disulfide (FeS2)
mineral
Specular Hematite
Hematite (Fe2O3)
mineral
Galena
Lead(II) sulfide (PbS)
mineral
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Rainbow Moonstone
White Labradorite (Plagioclase Feldspar), (Na,Ca)(Al,Si)4O8
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Feldspar (specifically Orthoclase)
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Ruby
Corundum (Al2O3 with Chromium traces)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (River Pebble)
Quartz (Silicon Dioxide - SiO2)
mineral
Gold Ore in Matrix
Native Gold (Au) in Quartz/Host Rock
mineral
Corundum (Sapphire variant)
Aluminium oxide (Al2O3)
mineral
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Black Sapphire
Corundum (Al2O3 with iron and titanium impurities)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Yellow Quartz / Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Labradorite (Feldspar)
Labradorite: (Ca,Na)(Al,Si)4O8
mineral
Amethyst
SiO2 (Silicon Dioxide with Iron impurities and natural radiation influence)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Epidote
Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
mineral
Citrine
Yellow Quartz (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
mineral
Ruby, Emerald, and Sapphire (Corundum and Beryl)
Corundum (Al2O3) and Beryl (Be3Al2Si6O18)
mineral
Labradorite
Labradorite (Ca,Na)(Al,Si)4O8
mineral
Banded Agate (Tumbled)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral