Sedimentary Rock Or Mineral (Depending On Origin And Purity)

Turquoise

Hydrated copper aluminum phosphate, CuAl6(PO4)4(OH)8·4H2O

Fine-grained brown-gray rock, possibly andesite

Likely andesite or another fine-grained volcanic rock; exact identification is uncertain from the photo

Quartzite

Quartzite (SiO2)

Quartz-rich rock, likely milky quartz vein material

Predominantly quartz (SiO₂); exact rock type cannot be confirmed from the photograph

Sandstone

Arenite (SiO2 dominant)

Green Turban Shell (Polished)

Turbo marmoratus (Aragonite/Calcite)

Quartz Pebble

Silicon Dioxide (SiO2)

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.

Red jasper in gray host rock (likely hematite-stained quartzite or rhyolite)

Jasper: microcrystalline quartz (SiO₂), with iron-oxide coloration; exact host uncertain from image

Ocean Jasper

Silicon Dioxide (SiO2) microcrystalline quartz aggregate with inclusions

Emerald

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

Silver Nugget

Native Silver (Ag)

Diamond (Green tinted)

Carbon (C) with trace impurities or lattice defects

Gold bullion bars

Native gold (Au), likely cast or refined metal

Native Gold Flake

Gold (Au)

Native Gold Nugget

Gold (Au)

Native Gold (in Jewelry)

Gold (Au)

Turquoise-colored ring stone (possibly turquoise or imitation)

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; identity cannot be confirmed from the image

Rose Quartz

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

Sedimentary Rock Fragments

Clastic Sedimentary Rock

Seashell Fragment

Calcium carbonate (CaCO3) - primarily Aragonite or Calcite

Rounded granite cobble

Granite, a coarse-grained felsic intrusive igneous rock composed chiefly of quartz, feldspar, and mica

Emerald

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

White-and-dark marble or agate-style gemstone bead bracelet

Likely calcite-rich marble (CaCO₃) mixed with dark gray stone beads; exact material is uncertain from the photo

Ruby

Corundum (Al2O3 with Chromium traces)

Emerald (Beryl)

Be₃Al₂Si₆O₁₈ (Chromium/Vanadium-bearing Beryl)

Dzi Bead (Etched Chalcedony)

Cryptocrystalline Quartz (SiO2) with chemical etching

Banded Sandstone (Beach Pebble)

Quartz Arenite Sandstone

Sandstone (Weathered Cobble)

Clastic sedimentary rock (primarily SiO2)

Emerald

Beryl (Be3Al2Si6O18 with chromium and vanadium impurities)

Multi-stone gemstone ring

Likely faceted blue topaz or synthetic blue stone with clear stones, possibly cubic zirconia or diamond; metal setting appears silver-colored alloy

Sandstone

Sandstone (clastic sedimentary rock)

Marble

Metamorphic Limestone (Calcite, CaCO3)

Ferruginous Sandstone (Gozzan/Ironstone)

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

Likely tumbled pale-green mineral specimen

Indeterminate; possibly serpentine, calcite, or pale jade/nephrite

Leopard Skin Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Sandstone

Arenite (primarily SiO2)

Pearl

Pearl; primarily aragonite (CaCO₃) in nacre

Mixed gemstone jewelry collection

Various gemstone minerals, including likely amethyst (quartz), sapphire or iolite, garnet, pearl, turquoise, and colored beryl or tourmaline

Diorite (possibly fine-grained variety or a related intermediate intrusive rock like a felsic gabbro or a dark granodiorite)

Diorite (Igneous rock, intrusive, intermediate composition)

Gossanous Sandstone (likely Terrestrial)

Arenite with Iron-Oxide inclusions

Brecciated polymictic rock, possibly impact breccia

Polymictic breccia; exact lithology indeterminate from image