Igneous Or Sedimentary

Basalt

Basalt (extrusive volcanic mafic rock)

Quartz with mica and feldspar (Pegmatite fragment)

Granitic Pegmatite (composed mainly of SiO2 with KAlSi3O8)

Sodalite in Matrix (often called Blue Marble or Sodalite-Syenite)

Sodalite-bearing Syenite / Na8Al6Si6O24Cl2 (Sodalite component)

Basalt

Basalt (Mafic volcanic rock)

Vesicular Basalt (Aqueous Tumbled)

Scoriaceous Basalt

Stromatolite

Stromatolite (Cyanobacteria-formed Organo-sedimentary structure)

Coal (Bituminous or Anthracite)

Carbonaceous sedimentary rock (primarily Carbon, C)

Sandstone (Ferruginous)

Arenite (Fe-bearing Clastic Sedimentary Rock)

Sandstone (with potential fossil inclusions)

Clastic sedimentary rock (primarily SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz Pebbles

Silicon Dioxide (SiO2)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Corundum (Sapphire/Ruby in Matrix)

Corundum (Al2O3)

Moonstone

Orthoclase Feldspar (formula: (K,Na)AlSi3O8)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Epidote

Epidote (Ca2(Al2,Fe3+)AlSi3O12(OH))

Yellow Quartz (Citrine or Iron-Stained Quartz)

Silicon Dioxide (SiO2)

Ruby

Corundum (Al2O3 with Chromium traces)

Greenstone (Epidote/Chlorite Rich Rock)

Metabasalt (often contains Epidote Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH))

Rose Quartz

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

Muscovite Mica (in Quartz matrix)

Potassium aluminum silicate hydroxide fluoride (KAl2(AlSi3O10)(F,OH)2)

Black Tourmaline

Schorl (Sodium iron aluminum borosilicate), NaFe3Al6(BO3)3Si6O18(OH)4

Moss Agate

Silicon Dioxide with inclusions (SiO2 + Mn/Fe/Chlorite)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Ferruginous Quartz

Silicon Dioxide (SiO2) with Hematite/Limonite inclusions

Moonstone

Orthoclase Feldspar ((K,Na)AlSi3O8)

Clear Quartz

Silicon Dioxide (SiO2)

Moonstone

Adularia / Orthoclase (KAlSi3O8)

Moonstone (Green Moonstone / Garnierite)

Potassium Aluminum Silicate (KAlSi3O8) with inclusions of Garnierite

Muscovite

Muscovite (KAl2(AlSi3O10)(OH)2)

Sunstone

Plagioclase Feldspar (Na,Ca)(Al,Si)4O8

Rose Quartz

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

Labradorite

Labradorite ((Ca, Na)(Al, Si)4O8)

Yellow Quartz (Citrine or Quartzite Pebble)

Silicon Dioxide (SiO2)

Red Garnet

Pyrope or Almandine (Silicate group, X3Y2(SiO4)3)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite (mica)

Dragon Blood Jasper

Epidote with Pietersite or Red Jasper (Ca2Al2Fe3+[Si2O7][SiO4]O(OH))

Agate (Moss or Plume Agate variety)

Silicon Dioxide (SiO2)

Amethyst (Purple), Sulfur (Yellow), and Blue Apatite

SiO2 (Quartz), S (Native Sulfur), Ca5(PO4)3(F,Cl,OH) (Apatite Group)

Epidote in Matrix (Dragon Stone variant)

Epidote with Quartz/Feldspar (Ca2(Al,Fe)3(SiO4)3(OH))

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Orthoclase Feldspar

KAlSi3O8 (Potassium aluminum silicate)