Metamorphic

Blue Apatite

Fluorapatite (Ca5(PO4)3(F,Cl,OH))

Clear Quartz (Faceted)

Silicon dioxide (SiO2)

Jasper

SiO2

Quartz pebble

SiO2, Quartz

Quartz

Silicon Dioxide (SiO2)

Apatite

Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)

Apatite

Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)

Moonstone

Orthoclase (KAlSi3O8)

Quartzite Pebble

Quartzite (SiO2)

Likely amphibolite (hornblende gneiss or mafic metamorphic rock)

Amphibolite, chiefly hornblende amphibole and plagioclase feldspar, with possible quartz, biotite, or epidote

Schist

Mica Schist (Metamorphic Rock)

Garnet in Matrix

Almandine or Spessartine Garnet in Quartz/Schist Matrix (X3Al2(SiO4)3)

Fuchsite

Chromium-rich Muscovite (KAl2(AlSi3O10)(OH,F)2 with Cr replacements)

Jade

There are two distinct minerals commonly known as Jade: Nephrite (a calcium magnesium silicate - Ca2(Mg,Fe)5Si8O22(OH)2) and Jadeite (a sodium aluminum silicate - NaAlSi2O6). Based on the image showing a typically softer, more fibrous appearance, it is likely Nephrite.

Epidote with quartz/feldspar

Epidote, Ca2(Al,Fe)3(SiO4)3(OH)

Emerald (green gemstone in a jewelry setting)

Beryl, Be₃Al₂(SiO₃)₆; green color commonly from chromium and/or vanadium

Pale greenish quartz-bearing rock, possibly serpentine or altered feldspar

Tentatively serpentinite-related rock (serpentine-group minerals) or altered granitic material; identification is uncertain from the photograph

Tumbled rhodonite

Rhodonite, manganese inosilicate (MnSiO₃)

Blue cabochon gemstone, likely synthetic glass or dyed stone

Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli

Quartz-rich altered rock, possibly quartz vein with mica

Microcrystalline to coarse quartz (SiO₂) with probable muscovite/biotite mica and iron-oxide staining

Sunstone and Garnet

Plagioclase Feldspar ((Na,Ca)(Al,Si)4O8) and Almandine Garnet (Fe3Al2(SiO4)3)

Tumbled green aventurine

Quartz (SiO₂), commonly containing fuchsite mica inclusions

Green Aventurine

Aventurine Quartz (SiO2 + Fuchsite inclusions)

Magnetite-rich iron ore

Magnetite (Fe₃O₄), possibly massive magnetite/ironstone

Tumbled garnet (likely almandine)

Almandine garnet, iron-aluminum nesosilicate (Fe₃Al₂Si₃O₁₂)

Red corundum (ruby-colored polished crystal)

Corundum, aluminum oxide (Al₂O₃); red color is typically caused by chromium

Jadeite Jade

Jadeite (NaAlSi2O6)

Quartz-rich rock fragment, possibly milky quartz

Quartz (SiO₂), likely a small vein-quartz or quartz-bearing rock fragment

Jade (likely Jadeite)

Jadeite (a pyroxene mineral) or Nephrite (a variety of amphibole mineral)

Gneiss or Schist

Gneiss or Mica Schist with Garnet

Garnet in Schist

Almandine Garnet in Mica-Schist (Fe3Al2(SiO4)3)

Green Slate Pebble (Serpentine / Greenschist Pebble)

Greenschist / Low-grade Metamorphic Rock

Garnet Schist

Almandine Garnet in Mica Schist (Fe3Al2(SiO4)3)

Garnet

Almandine Garnet (Fe3Al2(SiO4)3)

Ruby

Corundum (Al2O3)

Mica flakes (Muscovite)

Muscovite mica (KAl2(AlSi3O10)(F,OH)2)

Ruby

Corundum (Al2O3)

Ruby

Corundum (Al2O3)

Biotite-rich gneiss with a dark mafic band

Banded gneiss, likely quartz–feldspar–biotite gneiss (exact minerals uncertain from the image)

Pale green mica-rich rock (possibly chlorite schist)

Likely chlorite schist; identification is uncertain from the photograph

Likely slate fragments

Slate, a fine-grained metamorphic rock composed chiefly of quartz, mica, and chlorite

Epidote

Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))