Mineral

Granite

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

Granitic Pegmatite

Pegmatite containing Quartz, Feldspar, and Muscovite mica

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Gossanous Sandstone (likely Terrestrial)

Arenite with Iron-Oxide inclusions

Quartz Geode (with possible Manganese or Goethite coating)

Silicon Dioxide (SiO2)

Sandstone

Arenite (SiO2 primarily)

Pyrite

Iron Sulfide (FeS2)

Sandstone

Arenite (SiO2 principal)

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Chrysocolla on Quartz with Iron Oxides

Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)

Ferruginous Quartz

Silicon Dioxide (SiO2) with iron oxide inclusions (Limonite/Goethite)

Amygdaloidal Basalt

Basalt with Secondary Mineral Infillings

Chrysocolla

Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O

Glacial Granite with Epidote

Granite featuring Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Basalt with Epidote (Greenstone)

Amygdaloidal Basalt (Ca2(Al, Fe)3(SiO4)3(OH) inclusions)

Limonite (Iron Ore)

Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)

Jade (likely Jadeite or Nephrite)

Jadeite (NaAlSi2O6) or Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)

Hypersthene

(Mg,Fe)SiO3 - Enstatite-Ferrosilite series

Note: No specimen visible

Granite

Granite (Felsic Plutonic Rock)

Amygdaloidal Basalt

Basalt with secondary mineral infilling (SiO2/CO3)

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Laterite

Laterite (Ferricrete / Alcrete)

Purple Fluorite Octahedron

Fluorite (Calcium Fluoride, CaF2)

Limonite (Iron Ore)

Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)

Ferruginous Sandstone (Gozzanous)

SiO2 (Quartz) with FeO(OH) (Goethite) or Fe2O3 (Hematite) coating

Milky Quartz

Silicon Dioxide (SiO2)

Fluorite

Calcium Fluoride (CaF2)

Staurolite (Fairy Stone)

Staurolite (formula: Fe2+2Al9Si4O23(OH))

Okenite (in Zeolite matrix)

Okenite (CaSi2O5 · 2H2O)

Green Fluorite

Calcium Fluoride (CaF2)

Bauxite

Bauxite (mixture of hydrous aluminum oxides: Al(OH)3 & AlO(OH))

Milky Quartz with Iron Staining

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Fluorite Carving

Fluorite (Calcium Fluoride, CaF2)

Quartz (Iron-Stained or Milky)

Silicon Dioxide (SiO2)

Turquoise

Turquoise (CuAl6(PO4)4(OH)8·4H2O)

Limonite Concretion (Goonie or Rattlestone)

Limonite (FeO(OH)·nH2O)

Chrysocolla on Matrix

Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O

Malachite

Copper carbonate hydroxide, Cu2CO3(OH)2

Blue Apatite

Apatite group (Ca5(PO4)3(F,Cl,OH))

Amygdaloidal Basalt

Amygdaloidal Mafic Volcanic Rock (Basalt)