Mineraloid Like Synthetic Material

Oak-grain Laminate (Industrial/Decorative Furniture Finish)

Melamine Resin-impregnated Decorative Paper on Particleboard (Cellulose/Thermosetting Plastic)

Amber

Succinite (fossilized tree resin)

Amber

Succinite (specifically for Baltic amber); Fossilized Tree Resin (C10H16O)

Petrified Wood

Silicified Wood (SiO2)

Coquina

Biogenic Limestone (mostly Calcium Carbonate, CaCO3)

Corundum

Corundum (Al2O3)

Amber

Succinite (fossilized tree resin)

Amber

Succinite (with a generalized formula of C10H16O)

Amber (Burmite)

Fossilized tree resin (Succinite variant)

Petrified Wood (Silicified Fossil)

Silicified Wood (SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Moonstone (bead form)

Potassium Aluminum Silicate (KAlSi3O8) - a variety of Orthoclase Feldspar

Amber

Succinite (Fossilized Tree Resin), C10H16O

Amber

Succinite (formula varies, primarily C10H16O)

Petrified Wood

Silicified wood (Quartz/Chalcedony replacement of organic matter)

Red Amber (Burmite/Cherry Amber)

Succinite / Retinite (Organic Fossilized Resin, C10H16O)

Geode with Quartz/Chalcedony

Silicon Dioxide (SiO2)

Hematite

Iron(III) oxide (Fe2O3)

Precious Opal

Hydrated Silica (SiO2·nH2O)

Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Coquina

Biogenic Limestone (Calcium Carbonate, CaCO3)

Amber

Succinite (fossilized resin)

Amber

Succinite (with empirical formula approximately C10H16O)

Orbicular Granite (specifically Mustard or Yellow Tonalite/Granodiorite)

Orbicular Quartz Diorite / Tonalite

Coquina

Biogenic Limestone (Calcite, CaCO3)

Coquina

Coquina (Bioclastic Limestone)

Lapis Lazuli

Lazurite-dominant rock, (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2

Amber

Succinite (Fossilized Tree Resin)

Sandstone

Arenite (primarily SiO2)

Sandstone

Arenite (SiO2 with various cementing agents)

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Asphalt (Aggregate)

Bituminous macadam / Concrete Aggregate

Petrified Wood (Jet or Coalified Wood appearance)

Silicified wood (principally SiO2) or Carbonized Wood

Bismuth

Bismuth (Bi)

Coquina / Fossiliferous Limestone

Biogenic Limestone (Calcium Carbonate - CaCO3)

Sandstone

Arenite (composed primarily of SiO2)

Mudstone

Lutylite (group of fine-grained sedimentary rocks)

Lapis Lazuli (in Matrix)

Na8[Al6Si6O24]S2 (Lazurite as the primary component)

Concrete with Aggregate

Artificial Conglomerate (Cement and Aggregate)

Banded Calcite (often sold as Mexican Onyx or Aragonite)

Calcite/Aragonite (Calcium Carbonate, CaCO3)

Pumice or Scoria

Vesicular volcanic rock

Rough Corundum (likely Sapphire or Common Corundum)

Aluminum oxide (Al2O3)