Liesegang Stone (Sandstone with Liesegang Rings)
Clastic sedimentary rock with li-secondary iron oxide mineralization
sedimentary
Category
Mineral, Often A Rock Given Its Aggregate Nature
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Liesegang Ring Siltstone
Siltstone with iron oxide Liesegang bands
sedimentary
Lapis Lazuli
(Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2 (Complex silicate rock)
metamorphic
Agate
Silicon Dioxide (SiO2)
mineral
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Non-geological / Synthetic
Opalite
Synthetic Opalised Glass
glass
Jasper (likely Iron-stained)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Granite (weathered pebble)
Granite (plutonic igneous rock)
Igneous
Quartzite
Quartzite (SiO2)
metamorphic
Chrome Diopside
Magnesium Calcium Silicate (MgCaSi2O6) containing Chromium impurities
mineral
Sandstone
Arenite
sedimentary
Yellow Topaz (Imperial or Precious Topaz)
Al2SiO4(F,OH)2 (Aluminum Silicate Fluoride Hydroxide)
mineral
Goldstone
Not a natural mineral or rock. It is an ornamental glass.
Manufactured Glass (Simulant)
Topaz
Topaz (Al2SiO4(F,OH)2)
Mineral
Peach Moonstone
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Tourmaline (likely Schorl)
Tourmaline Group Mineral (e.g., Schorl for black varieties); (Na,Ca)(Li,Mg,Fe,Mn,Al)3Al6(BO3)3Si6O18(OH)4
Mineral
Hag Stone
Perforated Sedimentary Rock (typically Chert or Limestone)
sedimentary
Picture Jasper
SiO2, Microcrystalline Quartz
mineral
Quartz with Basalt inclusion
Silicon Dioxide (SiO2) with mafic silicate rock
igneous and sedimentary/metamorphic mix
Jasper Pebble
Silicon dioxide (SiO2) with impurities
sedimentary
Quartzite (Engineered Stone)
Silicon Dioxide (SiO2) based synthetic composite
metamorphic
Conglomerate
Conglomerate
sedimentary
Chalcedony or Chert/Jasper with secondary mineral staining
SiO2 (for chalcedony/quartz) with possible secondary copper minerals (e.g., CuSiO3·nH2O for chrysocolla, Cu2(CO3)(OH)2 for malachite) or iron oxides/hydroxides.
Mineral, potentially a rock with chalcedony/jasper.
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
sedimentary
Green Moss Agate
Silicon Dioxide (SiO2) with Mineral Inclusions
sedimentary
Brown Quartzite Pebble
Quartzite (SiO2)
metamorphic
Fossiliferous Limestone (Coquina)
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Porphyritic Basalt or Diabase with Plagioclase Phenocrysts
Porphyritic Basalt or Diabase; Mineral: Plagioclase Feldspar
Igneous
Basalt River Pebble
Basalt (Mafic volcanic rock)
igneous
Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Banded Agate
Cryptocrystalline Quartz (SiO2)
mineral
Dyed Agate
Silicon Dioxide (SiO2)
mineral
Quartz (Double-Terminated)
Silicon Dioxide (SiO2)
mineral
Sandstone Pebble with Mineral Encrustation
Quartz Sandstone with Calcite/Halite Crust
sedimentary
Tumbled Green Jasper
Silicon Dioxide (SiO2) with mineral inclusions
sedimentary
Scoria
Vesicular Basalt / Scoria
igneous
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Limonite inclusions
sedimentary
Shale
Fissile mudstone (rich in clay minerals and quartz)
sedimentary
Vuggy Quartz on Matrix
Crystalline Silicon Dioxide (SiO2)
mineral