Mineralogical Simulant

Diorite

Diorite (an intermediate intrusive igneous rock)

Eclogite

Eclogite (Omphacite-Garnet rock)

Granite

Phaneritic Felsic Igneous Rock

Granite

Phaneritic Felsic Igneous Rock

Granite

Phaneritic Felsic Igneous Rock

Banded amphibolite (hornblende-rich metamorphic rock)

Amphibolite; predominantly hornblende ± plagioclase, with possible biotite and quartz

Polished green-inclusion stone, likely chlorite-included quartz

Quartz (SiO₂) with chlorite inclusions; exact identification is uncertain from the photograph

Ironstone pebble

Iron-oxide-cemented sediment, likely hematite- or goethite-rich

Granite Pegmatite

Granitic Pegmatite (composition: SiO2 with KAlSi3O8)

Red faceted gemstone, likely synthetic ruby or red glass imitation

Possibly synthetic corundum (Al₂O₃:Cr³⁺); image alone cannot distinguish it from glass or another imitation

Howlite

Howlite (Calcium borosilicate hydroxide, Ca2B5SiO9(OH)5)

Granite

Granite (Phaneritic igneous rock)

Granite

Phaneritic Igneous Rock (composed primarily of Quartz SiO2, Alkali Feldspar, and Plagioclase)

Blue sapphire ring

Corundum (aluminum oxide, Al₂O₃), likely heat-treated sapphire

Green tourmaline (verdite-like rough)

Likely elbaite, Na(Li₁.₅Al₁.₅)Al₆(Si₆O₁₈)(BO₃)₃(OH)₄; identification from the photo is tentative

Raw green calcite (likely)

Calcite, calcium carbonate (CaCO₃)

Sandstone

Clastic sedimentary rock (primarily SiO2)

Yellow-green aventurine or serpentine pendant

Most likely serpentine-group mineral (magnesium silicate), possibly quartz-rich aventurine

Diamond ring

Diamond, crystalline carbon (C)

Colorless faceted gemstone, likely glass or quartz

Uncertain; possibly quartz (SiO₂), but the strong uniform brilliance and apparent molded/faceted form may indicate leaded glass or cubic zirconia

Pink/red faceted gemstone, likely synthetic corundum or glass imitation

Corundum (Al₂O₃), ruby/sapphire variety; exact identification requires testing

Blue glass-like heart pendant, likely synthetic blue spinel or colored glass

Unconfirmed; possibly synthetic spinel (MgAl₂O₄) or cobalt-colored glass

Serpentinite

Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)

Pink Cubic Zirconia (CZ)

Zirconium Dioxide (ZrO2)

Fossil brachiopod shell

Brachiopoda; exact genus and species cannot be determined from the image

Dark volcanic rock, likely basalt

Basalt (fine-grained mafic igneous rock; commonly plagioclase, clinopyroxene, and olivine)

Rounded basalt pebble

Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar and pyroxene, with possible olivine

Small rounded, foliated metamorphic pebble (likely greenschist)

Greenschist, commonly composed of chlorite, actinolite, and albite; exact identification requires testing

Pale-green schist fragment

Chlorite–sericite schist, possibly containing epidote or actinolite

Limonite with Quartz

FeO(OH)·nH2O (Limonite) with SiO2 (Quartz)

Scoria (vesicular volcanic rock)

Basaltic to andesitic scoria; chiefly plagioclase, pyroxene, and volcanic glass

Diamond ring

Diamond (crystalline carbon, C) set in a metal ring; the small stones appear diamond-like but cannot be confirmed from the image.

Jade bangle

Likely nephrite jade (actinolite–tremolite amphibole); possibly jadeite

Diamond (or Cut Gemstone / Cubic Zirconia)

Carbon (C)

Diamond (or Cut Gemstone Simulants)

Carbon (C)

Iron-rich metamorphic rock, likely specular hematite-bearing schist

Hematite–quartz–mica schist (tentative)

Small quartz-rich stone, possibly granite fragment

Indeterminate; likely quartz (SiO₂) with feldspar and/or mica

Faceted colorless gemstone, likely diamond

Diamond (crystalline carbon, C)

Loose faceted colorless gemstones, likely quartz or glass-like mineral chips

Most consistent with quartz (SiO₂), though the photograph cannot exclude synthetic cubic zirconia or glass

Diamond jewelry

Diamond (crystalline carbon, C)

Serpentinite (probable)

Serpentinite, dominated by serpentine-group minerals (Mg₃Si₂O₅(OH)₄), with dark magnetite or chromite and pale carbonate/talc possible

Dragon Blood Jasper

Quartz (SiO2) with Epidote and Piedmontite inclusions