Metamorphic (Likely Gneiss Or Schist Based On Texture)

Blue Sapphire

Corundum (Al2O3 - Aluminum Oxide with Iron and Titanium impurities)

Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (primarily SiO2)

Ferruginous Sandstone (with possible trace fossils)

Arenite with Iron-Oxide Cement (SiO2 with Fe2O3)

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium and/or Vanadium impurities

Firewood (Wood Log)

Lignum (Plant tissue composed of cellulose and lignin)

Mookaite Jasper

Silicified Radiolarite (SiO2)

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite or Iron Oxide inclusions

Feldspar-rich Quartzite

Feldspathic Quartzite (Metamorphosed Sandstone)

Quartzite (River Pebble)

Metamorphosed Quartz Sandstone (SiO2)

Quartzite (River Pebble)

Metamorphosed Quartz Sandstone (SiO2)

Beryl (Emerald Variety)

Beryllium Aluminum Silicate (Be3Al2(SiO3)6)

Quartzite Pebble (with Iron Staining)

Quartzite (SiO2)

Quartzite

Silicon Dioxide (SiO2)

Quartzite (River Stone)

Quartzite (composed primarily of Silicon Dioxide, SiO2)

Fuchsite

K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)

Pebble (likely a type of sandstone or quartzite pebble)

Clastic Sediment (specifically, a rudite-sized clast). If the pebble is composed of a specific rock type, its scientific name would be that rock type (e.g., 'Quartzite pebble', 'Granite pebble', 'Chert pebble'). Given its appearance, it is likely a metamorphic quartzite pebble or a hard sandstone pebble.

Anthracite Coal

Anthracite (Carbon based fossil fuel)

Black Tourmaline

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Citrine

Citrine (Silicon Dioxide - SiO2)

Chert (Flint)

Silicon Dioxide (SiO2)

Amazonite (likely mixed with other feldspars/minerals)

Amazonite is a variety of Microcline, which is a tectosilicate mineral, formula KAISi3O8. The mixed beads could include other feldspars or quartz.

Quartzite

Quartzite (primarily SiO2)

Petrified Wood (Silicified Wood)

Silicified Wood / Silicon Dioxide (SiO2)

Sandstone (Ferruginous)

Arenite with Iron Oxide cement (primarily SiO2 with Fe2O3)

Ambergris

Ambrein (C30H52O Derivative)

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Orange Quartzite / Quartz River Siltstone

Quartzite (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)

Lapis Lazuli

Na8(Al6Si6O24)S2 (Lazurite is the primary constituent mineral)

Aquamarine

Beryl (Be3Al2Si6O18)

Raw Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Sandstone (Banded Sandstone)

Clastic Sedimentary Rock (primarily SiO2 with iron oxide impurities)

Pink Quartzite

Quartzite (primarily SiO2)

Beryl (var. Heliodor or Aquamarine)

Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)

Yellow Quartz (Citrine Quartz Pebble)

Silicon Dioxide (SiO2)

Sandstone

Arenite (primarily SiO2)

Basalt with Magnetite

Crystalline Basalt (Primarily Plagioclase and Pyroxene) with Magnetite (Fe3O4)

Quartzite Pebble (with Iron Staining)

Quartzite (mainly SiO2)

Sapphire (Raw/Rough)

Corundum (Al2O3)

Aquamarine

Beryl (Be3Al2Si6O18)