Man Made Composite (Lithified Equivalent Of Sedimentary)

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite or Goethite inclusions

Cubic Zirconia (Man-made)

Cubic Zirconia (ZrO2) with Enamel and Metal Alloy

Green Slag

Anthropogenic Silicate Glass

Tumbled opalite (likely man-made glass)

Opalite glass; a synthetic opalescent glass, not a natural mineral species

Bismuth

Bismuth (Bi)

Blue cabochon gemstone, likely synthetic glass or dyed stone

Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli

Cubic Zirconia (Diamond Simulant)

Zirconium Dioxide (ZrO2)

Opalite

Synthetic Opalised Glass

Opalite

Synthetic Silicon Dioxide (SiO2)

Slag Glass

Anthropogenic Amorphous Silicon Dioxide

Rainbow Hematite (Titanium Coated)

Iron(III) oxide (Fe2O3) with Titanium/Metal Oxide coating

Blue opalite glass (likely man-made)

Opalite glass; a silica-based amorphous glass, not natural opal

Tumbled opalite (likely man-made glass)

Opalite, a trade name for opalescent glass; not natural opal

Opalite (likely imitation opal glass)

Man-made opalescent glass; not a natural mineral (often sold as opalite)

Blue glassy-looking specimen, possibly dyed or coated mineral

Not identifiable from the photograph; possibilities include dyed quartz or glassy slag, but composition cannot be established visually.

Milky quartz (rough quartz fragment)

Quartz, silicon dioxide (SiO₂)

Polished goniatite fossil limestone

Goniatite-bearing Devonian–Carboniferous limestone; fossil cephalopod shells (Goniatitida) in calcite-rich matrix

Likely tumbled or cut quartz/chalcedony fragment

Silicon dioxide (SiO₂), probably microcrystalline quartz or quartz

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂), likely milky quartz

Clear quartz sphere

Quartz (silicon dioxide, SiO₂)

Blue Impression Jasper beads

Impression jasper (microcrystalline quartz/chalcedony), chiefly SiO₂, with iron-oxide and other mineral inclusions

Mystic Topaz

Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating

Opalite

Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)

Obsidian (Blue)

Volcanic Glass (SiO2)

Blue Cracked Quartz (Dyed Fire Crackle Quartz)

Silicon Dioxide (SiO2) with synthetic dye

Pink Quartz / Sea Glass

Silicon Dioxide (SiO2)

Sandstone

Sandstone (clastic sedimentary rock composite)

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂)

White sea glass (naturally frosted glass fragment)

Man-made silicate glass, typically soda-lime glass; not a mineral or rock

Diamond / Clear Quartz / Glass paste

Carbon (Diamond) / Silicon Dioxide (Quartz)

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Goldstone

Aventurine glass (Synthetic glass with copper inclusions)

Faceted clear gemstone, likely quartz or glass imitation

Most likely quartz (SiO₂); exact identification requires refractive-index and hardness tests

Clear quartz crystal (likely)

Quartz, silicon dioxide (SiO₂)

Polished dendritic agate or jasper

Microcrystalline quartz (SiO₂), likely chalcedony with iron/manganese dendrites

Quartz (likely milky quartz or quartz glass-like fragment)

Quartz, silicon dioxide (SiO₂)

Rock crystal quartz fragments

Quartz (silicon dioxide, SiO₂)

Cherry Quartz with Rose Quartz

Crystalline Quartz (SiO2) with glass-based synthetic components

Blue Goldstone

Aventurine Glass

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Black tumbled stone, possibly obsidian

Obsidian (volcanic glass; predominantly SiO₂), identification uncertain from image

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial pigment