Mineral (Specifically, A Variety Of The Mineral Species Pyrope Almandine Garnet)

Tumbled red jasper (likely)

Jasper, microcrystalline quartz/chalcedony (SiO₂), colored mainly by iron oxides

Tumbled jasper

Microcrystalline quartz (SiO₂), commonly iron-oxide-bearing chalcedony

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Amazonite

K(AlSi3O8) - Microcline

Jasper (or possibly Agate/Chalcedony) beads

SiO2 (Silicon Dioxide)

Garnet

Garnet group [X3Y2(SiO4)3]

Garnet

Garnet Group (Silicate Minerals)

Garnet in Schist (Mica Schist with Garnet Inclusion)

Garnetiferous Mica Schist (X3Al2(SiO4)3)

Tumbled amethyst

Quartz, SiO₂; purple variety known as amethyst

Polished brecciated jasper

Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide staining and angular mineral fragments

Tumbled banded agate (likely carnelian or sardonyx)

Microcrystalline quartz, SiO₂ (chalcedony with iron-oxide banding)

Tumbled brown jasper

Microcrystalline quartz (SiO₂), commonly with iron-oxide impurities

Yellow jasper pebble (likely iron-stained chert)

Microcrystalline quartz (SiO₂), colored by iron oxides/hydroxides

Small orange-red tumbled gemstones, likely carnelian

Carnelian, a microcrystalline variety of quartz (SiO₂), typically colored by iron oxides

Tumbled brown jasper (likely)

Microcrystalline quartz, SiO₂; jasper is an opaque variety of chalcedony

Amazonite

Amazonite (KAlSi3O8)

Botryoidal chalcedony (likely common opal)

Silica, SiO₂; chalcedony is microcrystalline quartz, while opal is hydrated amorphous silica (SiO₂·nH₂O)

Sapphire in a ring

Corundum (Al2O3)

Red-brown jasper pebble

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides

Polished smoky quartz

Quartz (SiO₂), smoky variety

Blue Topaz

Aluminum Silicate Fluoride Hydroxide - Al2SiO4(F,OH)2

Fancy Jasper

Silicon Dioxide (SiO₂)

Red jasper

Microcrystalline quartz (chalcedony), SiO₂, colored mainly by iron oxides

Chalcedony

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Amazonite

Amazonite (KAlSi3O8)

Rose quartz

Quartz (SiO₂), pink variety

Khondalite

Garnet-Sillimanite-Graphite Gneiss

Smoky quartz crystal (tentative)

Quartz, silicon dioxide (SiO₂), likely smoky variety

Red jasper (likely polished/tumbled)

Jasper, an opaque microcrystalline variety of quartz/chalcedony (SiO₂), colored red by iron oxides

Garnet

Garnet Group (Silicate Minerals), formula varies e.g., Alm: Fe3Al2(SiO4)3

Milky Quartz

Silicon Dioxide (SiO2)

Likely schist

Mica schist, commonly quartz–muscovite/biotite schist

Tumbled jasper (likely picture jasper or iron-rich jasper)

Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides

Yellow-brown jasper (likely iron-stained chert)

Microcrystalline quartz (SiO₂), varieties of chalcedony/chert colored by iron oxides

Red-and-blue jasper (likely ocean jasper or dyed/polished jasper)

Microcrystalline quartz, chiefly SiO₂; jasper is an opaque chalcedony variety colored by iron oxides and other impurities

Polished brecciated jasper pebble

Microcrystalline quartz (SiO₂), with iron-oxide inclusions

Quartz–feldspar pegmatite with garnet

Granitic pegmatite; chiefly quartz (SiO₂), feldspar, mica, and reddish-brown almandine garnet

Quartzite with Garnet inclusion

Metamorphic Quartz-rich Rock