Sedimentary Rock (Possibly Conglomerate Or Breccia With A Quartz Vein)

Amber with inclusion

Amber (Fossilized Tree Resin)

Banded Gneiss (Variety of Gneiss)

Gneiss (specifically, a variety exhibiting prominent banding; mineral composition can vary, but often contains quartz, feldspar, mica, and amphibole)

Banded Gneiss

Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Biotite/Amphiboles)

Pink Anthracite Coal (dyed)

Anthracite Coal (Artificially Colored)

Carnelian

Carnelian (a variety of Chalcedony, SiO2)

Botryoidal Chalcedony

Chalcedony (SiO2)

Jasper (likely a variety of Yellow or Mustard Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Fluorite

Fluorite (Calcium Fluoride, CaF2)

Chert (Arrowhead Fragment)

Chert / Microcrystalline Silicon Dioxide (SiO2)

Epidote

Epidote Group (e.g., Clinozoisite, Epidote, Piemontite), Epidote formula: Ca2(Al,Fe)3(SiO4)3(OH)

Jasper Conglomerate

Jasperoid Conglomerate (predominantly SiO2 with iron oxide impurities)

Pyrite

Pyrite (FeS2)

Tiger's Eye (commonly referred to as Blue/Gold Tiger's Eye)

Tiger's Eye is a variety of Chalcedony (cryptocrystalline quartz), SiO2, exhibiting chatoyancy. The blue variety is often called Hawk's Eye.

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite)

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Banded Gneiss

Gneiss (variable mineral composition)

Gneiss

Gneiss (pronounced 'nice')

Banded Iron Formation (BIF)

Banded Iron Formation

Calcite (likely a tumbled specimen)

Calcite (CaCO 3 )

Red Tiger's Eye beads

Tiger's Eye (variety of Chalcedony, SiO2)

Sodalite

Sodalite (Na4Al3Si3O12Cl)

Slate

Slate (a fine-grained, foliated metamorphic rock). Mineral composition: Primarily composed of mica minerals (muscovite, chlorite, sericite) and quartz, with minor amounts of hematite, pyrite, and other accessory minerals.

Ferruginous Sandstone (with Pyrite/Gold associations)

Ferruginous Arenite (SiO2 + Fe2O3)

Jasper and Aquamarine (likely)

Jasper (Cryptocrystalline Quartz (SiO2)), Aquamarine (Beryl (Be3Al2Si6O18))

Milky Quartz

Silicon Dioxide (SiO2)

Ironstone (possibly Bog Iron or Limonite)

Goethite-rich Ironstone (FeO(OH))

Amazonite

KAlSi3O8 (Potassium Feldspar, variety of Microcline)

Chert or Flint (polished/water-worn)

Chert (a microcrystalline or cryptocrystalline variety of quartz, SiO2). Flint is a specific variety of chert.

Orthoclase Feldspar (or K-Feldspar)

Orthoclase (KAlSi3O8)

Banded Gneiss

Gneiss (pronounced 'nice')

Milky Quartz

Silicon Dioxide (SiO2)

Cobaltoan Calcite / Pink Dolomite (Possible)

Cobaltoan Calcite: (Ca,Co)CO3; Pink Dolomite (or Thulite): CaMg(CO3)2 or Mn-Dolomite / (Thulite: Mn2+3Al2(Si2O7)(SiO4)O(OH))

Yellow Jade (often Serpentine or Dolomite)

Primarily Serpentine (Mg3Si2O5(OH)4) or Dolomite (CaMg(CO3)2), though the term 'yellow jade' is also sometimes applied to varieties of true nephrite or jadeite.

Caliche (also known as hardpan, calcrete, kankar)

Primarily composed of calcium carbonate (CaCO₃), often mixed with other minerals like quartz, clay minerals, and iron oxides.

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Gold Ore in Quartz

Native Gold (Au) in Quartz (SiO2) matrix

Quartz on Chlorite Schist

Chlorite Schist (Mg,Fe)3(Si,Al)4O10(OH)2 with Quartz (SiO2)

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Jade

Jade can refer to two distinct minerals: Nephrite (a variety of the mineral actinolite, Ca2(Mg,Fe)5Si8O22(OH)2) and Jadeite (Na(Al,Fe3+)Si2O6). Based on the image, showing a relatively uniform green color and possibly slight translucence in bead form, it is very likely one of these, but determining which one from a photo is difficult without specific testing.

Milky Quartz

Silicon Dioxide (SiO2)

Turquoise

Turquoise (CuAl6(PO4)4(OH)8·4H2O)

Quartz (Milky or Druzy variety)

Silicon Dioxide (SiO2)