Cullet Glass (Industrial Slag Glass)
Amorphous Silica (SiO2) with metallic oxide impurities
Man-made byproduct (often mistaken for Obsidian or Emerald)
Category
Man Made Byproduct (Often Mistaken For Obsidian Or Emerald)
Browse man made byproduct (often mistaken for obsidian or emerald) specimens identified by the Rock Identifier community.
Learn about Man Made Byproduct (Often Mistaken For Obsidian Or Emerald) in the encyclopedia
View all →
Cullet Glass / Slag Glass
Amorphous silica glass
man-made glass / industrial byproduct
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Byproduct)
mineraloid
Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial byproduct)
mineraloid
Green Slag Glass
Amorphous Silica / Glassy Blast Furnace Slag
Mineraloid (Industrial byproduct)
Ferrous Slag
Iron/Steel Slag (Complex Calcium-Alumino-Silicates)
Anthropgenic (Industrial Byproduct)
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Man-made)
mineraloid
Man-made Slag (Industrial Byproduct)
Anthropogenic Glassy Residue
not a natural rock
Slag Glass
Amorphous Silicate (Man-made)
industrial byproduct
Blue Slag Glass
Man-made Silicon Dioxide (Amorphous)
Anthropogenic (Man-made)
Ferrosilicon Slag (Industrial Vitrified Glass)
Vitreous Silicate Residue
Antropogenic (Man-made industrial byproduct)
Green Slag
Anthropogenic Silicate Glass
Mineraloid (Industrial byproduct)
Green Glass Slag
Amorphous Silicon Dioxide (SiO2) with metal oxide impurities
mineraloid (man-made)
Slag Glass (Cullet)
Amorphous Silica (man-made), primarily SiO2 with trace metal oxides
Mineraloid / Synthetic Glass
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (SiO2) with metallic oxide impurities
mineraloid
Slag (Industrial Glass/Glassy Rock)
Anthropogenic Vitreous Material
igneous
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Mineral description (Anthropogenic material)
Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)
Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)
mineraloid / industrial byproduct
Slag Glass / Industrial Slag
Anthropogenic Glass
man-made glass / industrial byproduct
Cullet Glass (Man-made Glass Slag)
Amorphous Silica (SiO2) with chemical additives
Mineraloid
Blue Obsidian (Cullet Glass)
Silicon Dioxide (Amorphous Glass)
mineral
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
mineraloid / anthropogenic
Cullet Glass (Slag)
Amorphous Silicon Dioxide (Man-made)
Mineraloid
Slag
Glassy silicate byproduct (anthropogenic material)
industrial byproduct
Green Obsidian Sphere (man-made glass)
Vitreous Silica with Chromium/Iron additives
mineralogical simulant
Slag
Anthropogenic Vitreous Silica/Iron oxides
mineral-like byproduct
Slag (Industrial By-product)
Anthropogenic Vitreous Silica/Iron Silicate
mineral
Blue Slag Glass
Ferro-silicate glass (Slag)
igneous (man-made/industrial)
Cobalt Blue Glass / Cullet Glass
Silicon dioxide (Amorphous man-made glass)
mineral
Slag
Anthropogenic glassy silicate
Mineral-like byproduct
Slag
Metallurgical by-product
Anthropogenic (Man-made material)
Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Anthropogenic (Man-made)
Slag Glass
Vitreous Silicate Residue
industrial byproduct (anthropogenic rock)
Black tourmaline
Schorl, NaFe²⁺₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
mineral
Possible obsidian or slag glass
Volcanic glass, primarily SiO₂; alternatively industrial iron-rich glassy slag
igneous
Slag
Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)
igneous (artificial/anthropogenic)
Green Glass (often marketed as 'Obsidian' or 'Green Quartz')
Amorphous Silica (SiO2) with copper or chromium additives
Mineraloid (Man-made)
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Mineral-like Industrial Smelting Waste
Aluminum Slag
Anthropogenic Aluminum (Al)
mineral
Red Slag Glass
Amorphous Silica (Industrial byproduct with metallic oxide dopants)
Mineraloid / Industrial Byproduct
Iron Slag
Iron/Steel Slag (Ferrosilicate Glass)
industrial byproduct (anthropogenic material)