Sedimentary (Processed Mineral Product)

Quartz (likely a weathered/tumbled piece)

Quartz (SiO₂)

Red Jasper (Opaque Chalcedony)

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Red Jasper (Opaque Chalcedony)

Silicon Dioxide (SiO2) with Hematite inclusions

River Pebble (likely Quartzite or Chert)

Silicon Dioxide (SiO2) crystal conglomerate

Petrified Wood

Silicified Wood (SiO2)

Marble

Marble (metamorphosed limestone or dolostone), primarily composed of calcite (CaCO3) or dolomite (CaMg(CO3)2)

Moqui Marble (Shaman Stone)

Iron Oxide Concretion (Limonite/Hematite over Sandstone)

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Mixed Tumbled Gemstones and River Rocks

Mixed Decorative Stones (predominantly Silicon Dioxide - SiO2 variants)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within Sedimentary/Metamorphic Matrix

Greenstone

Metamorphosed Mafic Igneous Rock

Picasso Stone

Metamorphosed Calcium Carbonate (Limestone)

Petrified Wood

Silicified Wood (SiO2)

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial pigment

Grey River Stone (Quartz-rich Quartzite/Siltstone)

Quartzite / Meta-siltstone (primarily SiO2)

Cubic Zirconia

Zirconium dioxide (ZrO2)

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Limestone (specifically Crushed Limestone/Calcictic)

Calcium Carbonate (CaCO3)

Limestone

Calcium Carbonate (CaCO3)

Pink Dyed Agate (Pink Agate Slice)

Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz

Gneiss (specifically a granitic gneiss cobble)

Gneiss (high-grade regional metamorphic rock)

Shale

Shale (clastic sedimentary rock)

Jasper with Quartz Veining

Silicon Dioxide (SiO2) - Cryptocrystalline Chalcedony

Fossil Crab

Decapoda (likely Avitelmessus or Raninidae family)

Red Jasper

Silicon dioxide (SiO2) with iron oxide (Fe2O3) inclusions

Banded Gneiss

Gneiss (High-grade metamorphic rock)

Petrified Wood

Silicified wood (primarily SiO2)

Concretion

Various mineral compositions, typically carbonate or iron oxide cemented sediment

Halite

Sodium Chloride (NaCl)

Milky Quartz (Crystal Cluster)

Silicon Dioxide (SiO2) - Quartz Variety

Blue-dyed Quartz Druzy

Silicon Dioxide (SiO2) with artificial pigment

Gneiss

Gneiss (High-grade regional metamorphic rock)

Petrified Wood

Silicified Wood (SiO2)

Limestone

CaCO3 (principally Calcite)

Ferruginous Sandstone

Clastic Sedimentary Rock (Iron-rich)

Caliche (also known as hardpan, calcrete, kankar)

Primarily composed of calcium carbonate (CaCO₃), often mixed with other minerals like quartz, clay minerals, and iron oxides.

Banded Gneiss (Variety of Gneiss)

Gneiss (specifically, a variety exhibiting prominent banding; mineral composition can vary, but often contains quartz, feldspar, mica, and amphibole)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Milky Quartz)

Quartz (SiO2 - Silicon Dioxide)

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Limestone (specifically Marl or Chalk)

Calcium Carbonate (CaCO3)

Beaded Jewelry (Assorted Gemstones)

Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ