Mineral

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Gneiss (likely Granitic Gneiss)

Gneiss

Diorite

Diorite (Intermediate intrusive igneous rock)

Granite

Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)

Granite Gneiss

Gneiss (High-grade Metamorphic Rock)

Foliated Metamorphic Rock (likely Gneiss or Schist)

Gneissic Metamorphic Rock

Limestone with Calcite Veins

Calcium Carbonate (CaCO3)

Banded Gneiss

Gneiss (high-grade metamorphic silicate rock)

Gneiss

Gneiss (high-grade metamorphic rock)

Proustite

Proustite (Ag3AsS3)

Pyrite in Matrix (Gold-colored Chalcopyrite or Pyrite)

Iron Sulfide (FeS2) / Copper Iron Sulfide (CuFeS2)

Limonite (Ironstone Concretion)

Hydrous ferric oxides (FeO(OH)·nH2O)

Limonite

Limonite (Hydrous iron oxides, predominantly Goethite FeO(OH)·nH2O)

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic Volcanic Rock)

Granite

Granite (phaneritic felsic intrusive rock)

Limonite Sandstone

Ferruginous Sandstone (Hydrated Iron Oxide)

Schist

Schist

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Limonite (Iron Ore)

FeO(OH)·nH2O

Fossil Shark Tooth

Odontaspididae (Sand Tiger Shark family)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Gneiss (specifically Granite Gneiss)

Gneiss (High-grade Regional Metamorphic Rock)

Vanadinite

Lead Chlorovanadate, Pb5(VO4)3Cl

Sandstone with Ironstone Concretion

Arenite with Ferruginous Cement

Limonite (Iron Ore)

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

Sandstone

Arenite (clastic sedimentary rock)

Epidote

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

Epidote

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

Epidote

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

Not a rock, mineral, or geological specimen

Granite

Intrusive Felsic Igneous Rock

Banded Gneiss

Gneiss

Mica Group Minerals

There isn't a single scientific name as 'Mica' refers to a group of phyllosilicate minerals. Common scientific names include Muscovite (KAl₂ (AlSi₃O₁₀)(OH)₂), Biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH)₂), Phlogopite (KMg₃AlSi₃O₁₀(OH)₂), and Lepidolite (K(Li,Al)₃(Al,Si,Rb)₄O₁₀(F,OH)₂).

Fluorite

Calcium Fluoride (CaF2)

Pyrite

Iron Sulfide (FeS2)

Epidote

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

Chalcedony (Botryoidal)

Silicon Dioxide (SiO2)

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide and silicate minerals

Amygdaloidal Basalt with Epidote/Chlorite

Basalt (containing (Ca2(Al2Fe3+)(SiO4)(Si2O7)O(OH)))

Jade (likely Jadeite)

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

Limonite (Ironstone)

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