Mineral (Man Enhanced)

Labradorite (a variety of Feldspar)

Labradorite; (Na,Ca)(Al,Si)4O8 (a plagioclase feldspar)

Green Aventurine

Aventurine (variety of Quartz - SiO2)

Blue slag glass or dyed glass-like industrial material

Amorphous silicate glass; likely copper-bearing blue slag, but possibly colored man-made glass

Rhodonite

Manganese Inosilicate (MnSiO3), often with Ca, Fe, Mg, Zn

Topaz

Topaz (Al2SiO4(F,OH)2)

Agate

Agate (a cryptocrystalline variety of Quartz, SiO₂)

Green Aventurine

Quartz (SiO2) with Fuchsite inclusions

N/A - Man-made object (Jewelry Chain)

Antiqued or Oxidized Metal Chain (often Steel or Brass)

Goldstone (Brown)

Aventurine glass

Agate

Agate (a variety of Chalcedony, SiO2)

River Rock / Stream Pebble

Fluvial Clast / Rounded Sedimentary Particle

Polished blue calcite sphere (tentative identification)

Calcite, CaCO₃; blue color generally results from trace impurities or inclusions

Rhodonite beads (possibly dyed or treated, or lower quality Rhodonite)

Manganese inosilicate, (Mn,Fe,Mg,Ca)SiO3

Tumbled aqua glassy mineral specimen, likely chrysocolla or turquoise imitation

Uncertain from image; possible chrysocolla (hydrated copper aluminosilicate, variable composition) or dyed/man-made glass

Asphalt Pavement (with aggregate)

Asphalt concrete

Asphalt Chunk

Asphalt concrete

Agate (specifically, multi-colored or pastel-dyed agate)

Silicon dioxide (SiO2) - specifically, a cryptocrystalline variety of quartz known as Chalcedony, with banding classified as Agate. (If it were Fluorite, the chemical formula would be Calcium Fluoride - CaF2).

Crackle Glass (Simulated Gemstone)

Amorphous Solid (SiO2)

Agate (various color varieties)

SiO₂ (Silicon Dioxide)

Metal Chain (Likely Steel or a Steel Alloy)

Steel (primarily iron and carbon); specific alloy unknown

Synthetic Resin (Artificial Specimen)

Polyurethane or Polyester Resin

Blue Goldstone

Synthetic Avanturine Glass (or Aventurine Glass)

Green glassy mineral specimen, likely rough emerald or green fluorite

Tentatively beryl (Be₃Al₂Si₆O₁₈), emerald variety; synthetic/man-made glass cannot be excluded from the photograph

Brick

Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Mookaite Jasper

Siliceous (chert) sedimentary rock, a form of Jasper

Arsenopyrite in Quartz Matrix

Arsenopyrite (FeAsS) with Quartz (SiO2)

Blue slag glass / industrial smelter slag

Man-made iron-rich silicate slag; composition variable, commonly Fe–Ca–Mg–Al silicates with glassy phases

Aquamarine

Beryl (Be3Al2Si6O18), specifically the blue-green variety

Sea Glass

Amorphous Silicon Dioxide (SiO2)

Titanium Coated Aura Quartz (Apple Aura Quartz)

Silicon Dioxide (SiO2) with Metallic Vapor Deposition Coating

Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone)

Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)

Blue Goldstone

Aventurine glass (Synthetic borosilicate glass with cobalt and metallic inclusions)

Blue Slag Glass

Amorphous Silica (Byproduct of smelting)

Pink Opal / Peruvian Opal

Hydrated amorphous silicon dioxide (SiO2·nH2O)

Banded Gneiss (Variety of Gneiss)

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

Slag Glass (Cullet)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Quartz (Engineered Quartz Surface)

Silicon Dioxide (SiO2) based composite

Nickel coin (U.S. currency)

Cupronickel (75% Copper, 25% Nickel alloy)

Jasper, Agate, Quartz Mix (Polished Beads)

SiO₂ (Silicon Dioxide) for Quartz. Jasper and Agate are cryptocrystalline varieties of Quartz.

Asphalt (Bituminous Concrete)

Bituminous Concrete / Pavement

Mixed polished gemstone and mineral collection

Primarily quartz varieties (SiO₂), plus probable aventurine, rose quartz, amethyst, agate, jasper, serpentine, feldspar, and possibly dyed or man-made glass pieces