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

Tumbled garnet-bearing metamorphic rock (probable garnet schist)

Garnet schist; chiefly quartz, mica, feldspar, and almandine garnet (Fe₃Al₂Si₃O₁₂)

Garnet Schist

Garnet-bearing Mica Schist

Orange carnelian (possibly dyed agate) pendant

Cryptocrystalline quartz (chalcedony), SiO₂

Tumbled orange carnelian (likely)

Chalcedony, microcrystalline quartz (SiO₂)

Polished jasper pebble

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

Tumbled jasper

Microcrystalline quartz (chalcedony), chiefly SiO₂, colored by iron oxides and other impurities

Reddish-brown crystalline rock, possibly weathered granite or garnet-bearing schist

Indeterminate; likely quartz–feldspar–mica rock with iron oxides, potentially garnet-bearing

Schist (specifically Mica Schist)

Mica Schist (primarily composed of Muscovite KAl2(AlSi3O10)(OH)2 and Biotite)

Likely garnet-bearing schist or gneiss

Mica schist/gneiss containing quartz, feldspar, mica, and possible almandine garnet

Red Jasper

Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)

Tumbled agate/chalcedony

Microcrystalline quartz (SiO₂), likely mossy or dendritic agate with iron-oxide inclusions

Fuchsite

K(Al,Cr)2(AlSi3)O10(OH)2

Polished ocean jasper (orbicular jasper), likely a small tumbled stone

Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions

Tumbled carnelian

Carnelian, orange chalcedony (microcrystalline SiO₂)

Red jasper

Jasper (microcrystalline quartz, SiO₂), iron-oxide-rich variety

Tumbled Black Stone

Unknown, possibly Obsidian, Onyx, or Tourmaline

Tumbled jasper (likely picture/brecciated jasper)

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

Banded Gneiss (Variety of Gneiss)

Gneiss (specifically, a variety exhibiting prominent banding; mineral composition can vary, but often contains quartz, feldspar, mica, and amphibole)

Pink Satin Spar (Satin Spar Selenite Dyed)

Gypsum (CaSO4·2H2O)

Red jasper (possible polished or dyed stone)

Jasper, an opaque microcrystalline variety of quartz (SiO₂)

Milky Quartz

Silicon Dioxide (SiO2)

Polished banded agate

Banded chalcedony, microcrystalline quartz (SiO₂)

Tumbled carnelian and related stones

Carnelian: orange-red chalcedony, microcrystalline SiO₂; the dark central piece may be hematite- or jasper-rich material

Amphibolite (specifically Hornblende Schist/Gneiss)

Amphibole-rich Metamorphic Rock

Polished brown jasper (likely brecciated or orbicular jasper)

Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides and other inclusions

Polished jasper (likely brecciated or red jasper)

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide pigments and possible breccia fragments

Red jasper (likely iron-rich chert)

Microcrystalline quartz, SiO₂, colored mainly by hematite/goethite

Red jasper (probable)

Microcrystalline quartz/chalcedony (SiO₂) colored by iron oxides

Polished jasper pebble

Jasper, an opaque microcrystalline variety of quartz (SiO₂), often chalcedony with iron-oxide inclusions

Green Kyanite

Kyanite (Al2SiO5)

Gneiss (specifically a weathered Amphibolite or Garnet Gneiss)

Gneiss (complex silicate composition)

Moonstone

Orthoclase (KAlSi3O8) with inclusions of Albite (NaAlSi3O8)

Red jasper (possible polished jasper pebble)

Jasper, an opaque variety of microcrystalline quartz (SiO₂)

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2

Polished jasper pendant

Jasper, an opaque microcrystalline variety of quartz (SiO₂); exact variety cannot be confirmed from the image

K2 granite (K2 stone)

Granite composed mainly of orthoclase and plagioclase feldspar, quartz, and biotite or hornblende

Chrome Diopside

Magnesium Calcium Silicate (MgCaSi2O6) containing Chromium impurities

Ruby (Corundum)

Aluminum oxide (Al2O3) with Chromium traces

Jasper (likely brecciated jasper)

Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides

Tumbled carnelian (likely)

Cryptocrystalline quartz, SiO₂; reddish chalcedony colored mainly by iron oxides

Tumbled brown agate (probable)

Microcrystalline quartz, SiO₂ (chalcedony/agate)

Tumbled orange chalcedony (probable carnelian)

Cryptocrystalline quartz, SiO₂; reddish-orange variety commonly called carnelian