Mixed (Sedimentary, Igneous, And Metamorphic)

Green Aventurine

Silicon dioxide (SiO2) with inclusions of Fuchsite mica

Rhodonite

Manganese Silicate (Mn, Fe, Mg, Ca)SiO3

Shale or Mudstone (Based on appearance)

Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Granite

Granite (a broadly defined plutonic igneous rock, often more specifically classified as quartz monzonite or granodiorite based on precise mineral percentages)

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.

Jadeite Jade

Jadeite (NaAlSi2O6)

Agate Geode

Chalcedony (SiO2 - Silicon Dioxide)

Magnetite / Iron-Rich Concretion

Magnetite (Fe3O4) or Bog Iron Limonite

Lapis Lazuli

Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2

Almandine Garnet

Almandine, Fe3Al2(SiO4)3

Jade (likely Jadeite)

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

Green Aventurine

Aventurine Quartz (SiO2 + Fuchsite inclusions)

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Red Jasper (Opaque Chalcedony)

Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions

Slate

Foliated low-grade metamorphic rock

Epidote Water-Worn Pebble

Epidote {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)

Pink Stained Rock (Likely Quartzite or Sandstone with Iron Oxide Staining)

Quartzite (metamorphic) or Sandstone (sedimentary); coloration likely due to hematite or other iron oxides.

Rhodonite

Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3

Eclogite

Eclogite (Omphacite-Garnet Rock)

Hematite

Iron(III) oxide (Fe2O3)

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3

Granite

Granite

River Stone (Basalt or Siltstone)

Mafic Volcanic Rock or Clastic Sedimentary Rock

Epidote

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

Prehnite with Epidote inclusions

Prehnite: Ca2Al(AlSi3O10)(OH)2; Epidote: Ca2(Al,Fe)3(SiO4)3(OH)

Fuchsite

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

Green Aventurine

Aventurine Quartz (SiO2 + Fuchsite mica)

Quartzite pebble

Quartzite (SiO2 based)

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Slate

Foliated Metamorphic Rock (composed mainly of clay minerals or micas)

Fuchsite

Fuchsite (a variety of Muscovite mica, K(Al,Cr)2(AlSi3O10)(OH)2)

Nephrite Jade

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

Tiger's Eye

Silicon dioxide (SiO2) with fibrous inclusions of crocidolite

Quartzite River Rock

Metamorphic Quartzite (SiO2)

Quartzite Pebble

Metamorphic Quartz (SiO2)

Quartzite Pebble

Metamorphic Quartzite (SiO2)

Quartzite

Metamorphic Sandstone (SiO2)

Quartzite

Metamorphic Quartz (SiO2)

Quartzite Pebble

Metamorphic Quartzite (SiO2)