Sedimentary Rock Or Mineral (Depending On Origin And Purity)

Chert (Jasper Variant likely)

Silicon Dioxide (SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Quartz (Chert/Chalcedony variety)

Silicon Dioxide (SiO2)

Sandstone (Yellow/Tan)

Clastic sedimentary rock (primarily SiO2 with iron oxide staining)

Sandstone (Pebble/Conglomerate fragment)

Sandstone (clastic sedimentary rock)

Sandstone

Sandstone (lithified arenite/wacke)

Sandstone (Quartzose Sandstone)

Arenite (primarily SiO2 with minor Fe2O3)

Quartz (on matrix)

Quartz (Silicon Dioxide, SiO₂)

Lava Stone and Chakra Beads

Basalt (with various mineral/synthetic beads)

Jasper with Chert

Silicon Dioxide (SiO2) - Microcrystalline Quartz

River Rock / Stream Pebble

Fluvial Clast / Rounded Sedimentary Particle

Druzy Quartz (on Geode Fragment)

Silicon Dioxide (SiO2)

Emerald In Matrix

Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium

Graphite Schist

C (Carbonaceous Schist)

Sandstone

Sandstone (arenite is a more specific geological term for a clean sandstone, while wacke refers to a dirty sandstone with significant matrix)

Breccia

Clastic Breccia (General mineral composition depends on fragments, often SiO2 or CaCO3)

Shatter Cone

Impactite (Shatter Cone texture)

Quartz Geode

Silicon Dioxide (SiO2)

Sandstone with Concretions / Liesegang Rings

Arenite with iron oxide banding

Sandstone

Arenite (Sedimentary rock composed of sand-sized grains, primarily SiO2)

Coal (Anthracite)

Anthracite (Carbon-based organic sedimentary/metamorphic rock)

Turquoise

Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O

Jasper with Quartz Vein

Silicon Dioxide (SiO2) with impurities

Ruby

Corundum (Al2O3 with Chromium traces)

Ruby

Corundum (Al2O3 with Chromium traces)

Pebble (likely Quartz or Chert)

SiO₂ (Silicon Dioxide) - referring to the likely main mineral composition, Quartz. If it's chert, the scientific name remains SiO₂ with a microcrystalline structure.

Unknown Organic Object (likely a berry or fruit)

Not applicable; this is not a geological specimen. If it were a cranberry, its scientific name would be Vaccinium macrocarpon; if a cherry, it would be Prunus avium or Prunus cerasus.

Sandstone (Ferruginous)

Arenite (with Iron Oxides)

Ferruginous Sandstone with Quartz Inclusions

Clastic Sedimentary Rock (Iron-rich Sandstone)

Pink Granite

Felsic Intrusive Igneous Rock (composed primarily of K-Feldspar, Quartz, and Mica)

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

Fluorite (Rainbow Fluorite)

Calcium Fluoride (CaF2)

Sandstone (Weathered Cobble)

Clastic Sedimentary Rock (primarily SiO2)

Chert (Black Chert)

Microcrystalline Silica (SiO2)

Sandstone

Arenite (SiO2 + various cementing minerals)

Sandstone (specifically Arkose or Quartz Arenite)

Arenite (primarily SiO2 with possible Feldspar)

Alexandrite

Chrysoberyl (BeAl2O4 with Chromium impurities)

Quartz (Druzy on Matrix)

Silicon Dioxide (SiO2)

Pink Granite

Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Plagioclase)

Emerald (Faceted Gemstone)

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Ferruginous Sandstone (Gozzan/Ironstone)

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

Ruby

Corundum (Al2O3 with Chromium impurities)