Amber
Succinite (a Fossilized Tree Resin); Chemical formula is approximately C10H16O
Organic mineraloid
Category
Mineral (Or Mineraloid If Microcrystalline)
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Amber
Succinite (with formula approximately C10H16O)
Organic mineraloid
Red Jasper
Jasper (a variety of Chalcedony, SiO₂)
Mineraloid (cryptocrystalline quartz)
Red Sandstone
Clastic Sedimentary Mineraloid (predominantly Quartz grains with Iron Oxide cement)
sedimentary
Slag
Ferrous slag (by-product of iron smelting)
Mineraloid / Anthropogenic
Slag (Industrial Glass Slag)
Amorphous Silica / Ferro-silicate Slag
mineraloid / anthropogenic
Amber
Succinite (specific to Baltic amber), fossilized tree resin
Organic Mineraloid
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
mineraloid / anthropogenic
Pearl (in a decorative hair comb setting)
Calcium carbonate (CaCO3) primarily as Aragonite, bonded with Conchiolin
Organic Mineraloid
Man-made Glass (Tumbled/Shaped)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Mineraloid (synthetic)
Amber (Burmite)
Fossilized tree resin (Succinite variant)
Organic mineraloid
Polished amber
Amber (fossilized plant resin), commonly succinite; organic mineraloid rather than a true mineral
gemstone
Opalite
Synthetic Glass, SiO2 base with metallic inclusions
mineraloid (synthetic)
Amber
Succinite (C10H16O)
Organic Mineraloid
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2 + tracing minerals
mineraloid / impactite
Goldstone (Brown)
Aventurine glass
mineraloid (man-made)
Synthetic Resin (Artificial Specimen)
Polyurethane or Polyester Resin
mineraloid (man-made)
Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary
Man-made Crystal (Lead Glass)
Lead oxide-doped Silica Glass (approx. SiO2 + PbO)
Mineraloid/Synthetic Material
Yellow Chalcedony / Carnelian
Silicon Dioxide (SiO2)
mineral
Slag (Industrial Glass Slag)
Amorphous Silicate Glass (often containing Al, Ca, Mg, and Ti oxides)
Mineraloid (Industrial byproduct)
Red Slag Glass
Amorphous Silica (Industrial byproduct with metallic oxide dopants)
Mineraloid / Industrial Byproduct
Opalite
Synthetic Opalite Glass
mineraloid (man-made)
Slag Glass
Amorphous Silica Glass (with metal oxide inclusions)
Mineraloid / Industrial Waste
Amber
Succinite (Resinite)
Organic Crystal (Mineraloid)
Banded chert or jasper pebble
Microcrystalline quartz (SiO₂), commonly with iron-oxide and clay impurities
sedimentary
Amber (and Citrine Quartz)
Succinite (Amber) and Silicon Dioxide (SiO2)
Organic Mineraloid and Mineral
Probable amber fragment
Amber (fossilized plant resin; chiefly amorphous organic resin, commonly dominated by succinite)
gemstone
Amber
Succinite (specifically for Baltic amber); Approximate formula: C10H16O
Organic Gemstone (Mineraloid)
Opalite
Synthetic Opalite Glass (Silicon Dioxide)
mineraloid (man-made)
Brecciated Jasper (Polished)
Silicon Dioxide (SiO2) with Iron Oxide Impurities
sedimentary
Weathered jasper/chert nodule
Microcrystalline quartz (SiO₂), likely iron- and clay-stained jasper or chert
sedimentary
Chalcedony (Yellow/Brown Agate Pebble)
Silicon Dioxide (SiO2)
mineral
Dalmatian Jasper
Microcrystalline Quartz with Arfvedsonite and Tourmaline inclusions
igneous
Brown Quartz (Jasper or Chert)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Opalite
Synthetic Opalized Glass (SiO2 + additives)
mineraloid (man-made)
Quartz / Common Opal Transition
Silicon Dioxide (SiO2)
mineral
Green Slag Glass
Amorphous Silica / Glassy Blast Furnace Slag
Mineraloid (Industrial byproduct)
Polished brecciated jasper pebble
Microcrystalline quartz (SiO₂), with iron-oxide inclusions
mineral
Green Glass (often marketed as 'Obsidian' or 'Green Quartz')
Amorphous Silica (SiO2) with copper or chromium additives
Mineraloid (Man-made)
Jasper (Chert / Chalcedony)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral