Sedimentary (Physico Chemical)

Banded Rock (likely Quartz-rich)

Uncertain, likely a Metamorphic Rock (e.g., Gneiss or Schist) with prominent Quartz and other minerals

Greenstone

Metamorphosed Mafic Igneous Rock

Amber

Succinite (specifically for Baltic amber); chemical formula approximately C10H16O

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz Geode (likely within Limestone or Dolomite matrix)

Quartz (SiO₂)

Chert (often called Flint when dark)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Leopardskin Jasper

Jasper (a variety of microcrystalline Quartz)

Limonite-stained Quartz / Quartzite

Silicon Dioxide (SiO2) with iron hydroxides (FeO(OH)·nH2O)

Jasper (likely Polychrome or Mookaite variants)

Silicon Dioxide (SiO2) with iron oxide and hydroxide inclusions

Amber

Resinite (Succinite if from the Baltic); Chemical Formula: C10H16O (approximate)

Banded Agate (Onyx variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Quartzite

Quartzite (primarily SiO2)

Concrete with Exposed Aggregate

Anthropogenic conglomerate (Concrete)

Sulfur

Native Sulfur (S8)

Pebble (likely Sandstone or Granitic Pebble)

Clastic Sediment (or specific rock type, e.g., Arenite, Granitoid Pebble)

Kyanite

Kyanite (Al2SiO5)

Blue Opal Inlay (Simulated/Lab-created)

Hydrated Amorphous Silica (SiO2·nH2O) with polymer resin

Muscovite Mica

Muscovite (KAl₂(AlSi₃O₁₀)(F,OH)₂))

Amber

Succinite (a Fossilized Tree Resin); Chemical formula is approximately C10H16O

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Greywacke (likely)

Greywacke (a type of sandstone)

Weathered Quartzite or Chert Pebble

Silicon Dioxide (SiO2)

Gossan with Copper Carbonate (Chrysocolla/Malachite)

Ferruginous Oxide (Gossan) with Cu2CO3(OH)2 (Malachite) or (Cu,Al)2H2Si2O5(OH)4 (Chrysocolla)

Chert (Flint)

Chert (microcrystalline quartz)

Concrete

Hydrated Portland Cement Aggregate Composite

Lazulite

Lazulite (MgAl2(PO4)2(OH)2)

White Jade / White Chalcedony

Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)

Banded Iron Formation

Banded Iron Formation (BIF)

Jasper

Silicon Dioxide (SiO2) - a variety of Chalcedony (Cryptocrystalline Quartz)

Clay (as a rock-forming material)

Clay minerals (e.g., Kaolinite group, Smectite group, Illite group, Chlorite group)

Banded Iron Formation

Banded Iron Formation (BIF)

Chert (or Flint)

Chert (cryptocrystalline quartz), SiO2

Jasper (specifically Bloodstone or Heliotrope variety)

Silicon Dioxide (SiO2) with iron oxide inclusions

Kyanite

Kyanite (Al2SiO5)

Chert / Flint

Chert (varietal name for microcrystalline quartz). Chemical formula: SiO₂

Garnet (likely Almandine or a blend)

Garnet group: X3Y2(SiO4)3, where X can be Ca, Mg, Fe2+, Mn2+ and Y can be Al, Fe3+, Cr3+. Given the dark, somewhat reddish-brown appearance in the image, it's likely Almandine (Fe3Al2(SiO4)3) or a mix with other iron-rich garnets.

Green Jasper with Agate Banding

Silicon Dioxide (SiO2) with impurities of ferrous silicate or chlorite

Red Jasper (beads)

Silicon Dioxide (SiO2) with iron inclusions

Amber (Black)

Amber (succinite, retinite, etc., specifically, heavily included/dark varieties)

Pyrite

Iron Pyrite (FeS₂)

Quartz Pebble

Silicon Dioxide (SiO2)

Shale or Mudstone (Based on appearance)

Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)