Mineral

Shark Tooth Fossil

Chondrichthyes (class) fossilized tooth

Marble

Recrystallized Calcite (CaCO3)

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Amethyst

Quartz (Silicon Dioxide, SiO2)

Chrysocolla on Matrix

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

Peridot (rough olivine crystals)

Olivine, chiefly forsterite–fayalite solid solution, (Mg,Fe)₂SiO₄; gem-quality olivine is called peridot

Gneiss

Gneiss

Unidentified small mineral specimen

Undetermined from the image

Fossilized Shark Tooth

Chondrichthyes (Class)

Granite

Granite, a coarse-grained felsic intrusive igneous rock composed chiefly of quartz, feldspar, and mica or amphibole

Likely garnet-bearing rock (possibly almandine garnet in matrix)

Garnet, likely almandine (Fe₃Al₂Si₃O₁₂); host rock cannot be determined from the image

Likely garnet-bearing rock, possibly a garnet crystal in matrix

Garnet, probably almandine (Fe₃Al₂(SiO₄)₃), on a dark metamorphic host rock

Rough red garnet crystal

Likely almandine garnet, Fe₃Al₂(SiO₄)₃; species cannot be confirmed from the image alone

Blue apatite rough

Apatite-group calcium phosphate, commonly fluorapatite (Ca₅(PO₄)₃F)

Quartz-rich pegmatite

Granitic pegmatite, composed mainly of quartz and feldspar with dark mica or other accessory minerals

Quartz Mineral

Silicon Dioxide (SiO2)

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Unknown Rock Fragment

Unknown

Banded gneiss pebble

Feldspar–quartz gneiss; exact mineral composition cannot be confirmed from the image

Drill Core Samples (Varied Lithology)

Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)

Weathered granite (likely)

Granite, a coarse-grained felsic intrusive igneous rock composed chiefly of quartz, feldspar, and mica

Chlorite-rich schist (probable greenschist)

Greenschist-facies metabasalt or chlorite–actinolite schist

Fossil bone, possibly a large mammal long-bone fragment

Fossilized cortical bone; taxon indeterminate from the photograph

Shark Tooth Fossil

Vertebrate fossilized tooth (various genera such as Carcharodon, Otodus, or Negaprion)

Granite

Phaneritic Plutonic Felsic Rock

Green serpentine (likely serpentinite)

Serpentine-group minerals, commonly antigorite, lizardite, and/or chrysotile; rock name: serpentinite

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Green-and-white rough mineral specimen, possibly amazonite

Unconfirmed; possible amazonite, a green variety of microcline feldspar (KAlSi₃O₈)

Copper Ore Specimen

Cupriferous Rock / Malachite-bearing ore

Unidentified dark metallic sulfide specimen

Possibly pyrite-, chalcopyrite-, or galena-bearing ore; exact identification requires testing

Pink-orange mineral fragment, likely feldspar (possibly potassium feldspar)

Likely orthoclase or microcline, KAlSi₃O₈; identification from the image is uncertain

Likely rough garnet-bearing rock

Possibly almandine garnet in a metamorphic host; exact identification is uncertain from this photograph

Rhodochrosite

Manganese Carbonate (MnCO3)

Rounded pink-gray granite pebble

Granite, a coarse-grained felsic intrusive igneous rock

Pyrite with Quartz

Iron Sulfide (FeS2) with Silicon Dioxide (SiO2)

Almandine garnet crystal

Almandine, an iron-aluminum garnet; ideal formula Fe₃Al₂(SiO₄)₃

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Fluorite and Mineral Collection

Calcium Fluoride (CaF2)

Granite

Granite

Gneiss

Gneiss (High-grade metamorphic rock)

Carved serpentine pendant

Serpentine-group minerals, commonly antigorite/lizardite (Mg₃Si₂O₅(OH)₄), possibly mixed with chlorite or other inclusions

Potassium Feldspar (Orthoclase)

Orthoclase (KAlSi3O8)