Gold Sheen Obsidian
Obsidian (volcanic glass with SiO2 + gas inclusions)
Category
Browse mineraloid (man made origin) specimens identified by the Rock Identifier community.
Gold Sheen Obsidian
Obsidian (volcanic glass with SiO2 + gas inclusions)
White Precious Opal
Hydrated Silica (SiO2·nH2O)
Limonite (Hydrated Iron Oxide / Bog Iron)
FeO(OH)·nH2O
Amber
Succinates
Obsidian
Volcanic Glass (SiO2)
Shungite
Shungite (carbon-rich Precambrian mineraloid)
Fluorite (Rainbow Fluorite)
Calcium Fluoride (CaF2)
Rough Green Fluorite
Fluorite (Calcium Fluoride - CaF2)
Emerald
Beryl (Be3Al2Si6O18) with trace amounts of Chromium and/or Vanadium
Fluorite (Rainbow/Purple Fluorite)
Calcium Fluoride (CaF2)
Pearl
Calcium Carbonate (Aragonite/Calcite mixed with Conchiolin), CaCO3
Kidney Stone
Calcium Oxalate (CaC2O4·nH2O)
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Gastly (Trick or Trade Halloween Series)
Cellulose-carbonaceous composite (Lignocellulose laminated with pigmentary polymers)
Jasper with Quartz Vein
Silicon Dioxide (SiO2) with impurities
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium and/or Vanadium impurities
Diamond
Native Carbon (C)
Porphyritic Basalt (Chinese Writing Stone/Flower Stone)
Porphyritic Basalt (primarily Plagioclase Feldspar in a Mafic groundmass)
Amber
Succinite (C10H16O)
Amber
Succiniferous fossil resin (C10H16O)
Black Obsidian
Amorphous volcanic glass (SiO2)
Obsidian (specifically Mahogany Obsidian)
Volcanic glass (high silica content, SiO2)
Obsidian with Mahogany Phasing
Volcanic Glass (SiO2 + Fe2O3)
Obsidian
Obsidian (Volcanic Glass; SiO2 content > 70%)
Mahogany Obsidian
Volcanic Glass (SiO2 + Fe2O3)
Obsidian
Obsidian (Volcanic Glass, SiO2 + impurities)
Amber
Succinate (Fossilized Tree Resin)
Precious Opal
Hydrated Silica (SiO2·nH2O)
Amber
Succinite (fossilized tree resin)
Bumblebee Jasper
Anhydrite-Aragonite mixture with Orpiment and Realgar
Amber
Succinates (C10H16O)
Amber (Baltic)
Succinith (Fossilized Tree Resin)
Opal
Hydrated Silica (SiO2·nH2O)
Amber
Succinate (Fossilized Tree Resin)
Amber
Succinite (approximate formula C10H16O)
Amber
Succinite (a specific common type) or Fossilized Tree Resin (C10H16O)
Amber
Succinate (Fossilized Tree Resin)
Amber
Succinite
Amber
Succinite (organic fossilized resin)
Leland Blue Stone
Anthropogenic Iron Smelting Slag
Amber
Succinite (C10H16O)
Amber
Succinite (C10H16O)