Organic Gem Material (Botanical)

Blue Apatite

Apatite - Ca5(PO4)3(F,Cl,OH)

Red Coral (Sponge Coral / Apple Coral)

Corallium rubrum (calcium carbonate / organic gem)

Faceted blue gemstone, likely blue topaz or synthetic spinel

Topaz (Al₂SiO₄(F,OH)₂) or synthetic spinel (MgAl₂O₄); image insufficient for certainty

Vesicular basalt (scoria-like basalt fragment)

Basalt; primarily plagioclase, pyroxene, and commonly olivine, with small vesicles

Chrysocolla in Chalcedony (Gem Silica)

Hydrated copper phyllosilicate and silicon dioxide (SiO2 with (Cu,Al)2H2Si2O5(OH)4)

Petrified Wood

Silicified Wood (primarily SiO2)

Graphite-rich metamorphic rock (probable graphite schist)

Graphite schist; predominantly graphite (C) with quartz and mica

Possible bituminous coal

Coal, predominantly carbon with macerals and minor mineral impurities

Amber

Organic gemstone (Succinite)

Dendritic Agate

Silicon Dioxide (SiO2) with manganese/iron inclusions

Amber

Succinite

Amber

Succinite (Formula: C10H16O)

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Amber

Fossilized Tree Resin (Succinite for Baltic varieties)

Amber

Succinite (Resinite)

Petrified Wood

Silicified Wood (SiO2)

Aquamarine-bearing quartz specimen

Beryl (Be₃Al₂Si₆O₁₈), likely aquamarine, on quartz (SiO₂)

Rough ruby-bearing corundum (identification uncertain)

Corundum (Al₂O₃), possibly ruby; the image alone cannot confirm ruby or distinguish it from other red-purple minerals.

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

Amber

Succinite (fossilized tree resin)

Blue polished cabochon, likely dyed agate or chalcedony

Chalcedony (microcrystalline quartz, SiO₂); exact material cannot be confirmed from the image

Tumbled purple-blue corundum, possibly sapphire

Corundum (Al₂O₃); blue-to-purple varieties are sapphire

Amber

Succinite (fossilized tree resin)

Amber

Succinite (with approximate formula C10H16O)

Petrified Wood

Silicified Wood (SiO2)

Pearl

Calcium Carbonate (Aragonite/Calcite mixed with Conchiolin), CaCO3

Red Chert (Jasper)

Chert / Microcrystalline Quartz (SiO2)

Pearl

Calcium Carbonate (Aragonite/Calcite) with Conchiolin, CaCO3

Clear faceted gemstone in an ornate metal bracelet

Unidentified transparent faceted stone; possibilities include quartz (SiO₂), zircon (ZrSiO₄), or glass—image alone cannot distinguish them

Amber

Succinite (fossilized tree resin)

Petrified Wood

Silicified Wood (SiO2)

Ruby (Raw Corundum)

Corundum (Al2O3 with Chromium impurities)

Likely raw emerald or green beryl

Beryl, Be₃Al₂Si₆O₁₈; green color typically from chromium or vanadium

Amber

Fossilized Tree Resin

Blue gemstone in a decorative setting (possibly blue spinel or sapphire)

Unidentified blue faceted gemstone; sapphire is corundum (Al₂O₃), while spinel is MgAl₂O₄

Polished moss agate

Moss agate, a variety of chalcedony (microcrystalline quartz, SiO₂)

Black onyx-style gemstone ring

Likely chalcedony (microcrystalline quartz, SiO₂), possibly dyed black; identification from the photo is uncertain

Petrified Wood

Silicon Dioxide (SiO2) permineralized organic matter

Yellow-brown jasper (likely iron-stained chert)

Microcrystalline quartz (SiO₂), commonly called jasper when opaque and colored by impurities

Serpentine

Hydrous magnesium iron silicate, (Mg,Fe)3Si2O5(OH)4

Sugilite

Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)

Diamond

C