Slag (Industrial Byproduct)
Ferrous/Non-ferrous Silicate
igneous (artificial/anthropogenic)
Category
Igneous (Artificial
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Slag
Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)
igneous (artificial/anthropogenic)
Dyed Agate
Silicon dioxide (SiO2) with artificial colorant
gemstone
Dyed Agate
Silicon Dioxide (SiO2)
gemstone
Dyed Agate
Silicon dioxide (SiO2)
gemstone
Dyed Agate
Silicon Dioxide (Chalcedony), SiO2
gemstone
Purple Agate
Silicon dioxide (SiO2)
gemstone
Dyed Agate
Agate (Silicon dioxide)
Mineral
Dragon Vein Agate
SiO2 (Quartz variety)
gemstone
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Mineral description (Anthropogenic material)
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Blue Agate
Silicon dioxide (Chalcedony), SiO2
gemstone
Metallic Ornament / Jewelry
N/A - This is an artificial object, not a geological specimen.
This appears to be a man-made metallic object, likely jewelry, not a natural rock, mineral, or geological specimen.
Slag
Anthropogenic silicate slag
igneous
Blue Dyed Agate
Chalcedony (SiO2) with artificial pigment
mineral
Quartz (Tumbled)
SiO2 (Silicon Dioxide)
mineral
Prasiolite (Green Quartz)
Silicon Dioxide (SiO2) with iron impurities
mineral
Dyed Agate Slice
Microcrystalline Quartz (SiO2) with artificial pigment
mineral
Orange Quartz (or Citrine Quartz)
Silicon Dioxide (SiO2)
mineral
Concrete or artificial stone core sample
Artificial conglomerate
sedimentary
Dyed Quartz Crystals
Silicon Dioxide (SiO2) with artificial pigment
mineral
Quartz-rich river pebble
Likely quartz-rich granitic rock; mainly quartz (SiO₂), with possible feldspar and mica
igneous
Dyed Blue Quartz
Silicon Dioxide (SiO2) with artificial pigment
mineral
Frosted Quartz
Silicon Dioxide (SiO2)
mineral
Mixed Tumbled Gemstones
Various silicate and oxide minerals
mineral
Mixed Tumbled Gemstones and Minerals
Various silicate and oxide minerals
mineral
Dyed Cracked Agate
Silicon Dioxide (Quartz variety, SiO2)
gemstone
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Dalmatian Jasper (Dyed Blue)
Peralkaline Rock with Arfvedsonite and Blue Dye
igneous
Blue Quartz (Dyed)
Silicon Dioxide (SiO2) with artificial pigment
mineral
Olivine (Peridot when gem-quality)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Dyed Crackle Quartz/Agate (resembling Watermelon Tourmaline)
SiO2 (Silicon Dioxide)
Mineral/Treated
Dalmatian Stone (commonly Dyed)
Dalmatian Jasper (Peralkaline igneous rock)
igneous
Dyed Pumice
Vesicular Rhyolite (Artificial Coloration Addition)
igneous
Blue Agate
Silicon Dioxide (SiO2)
gemstone
Clear Quartz (Faceted)
Silicon dioxide (SiO2)
gemstone
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Man-made Green Quartz (Lab-grown or Treated)
Silicon Dioxide (SiO2) with artificial coloration
mineral
Yellow Quartz (Citrine type/Tumbled Quartz)
Silicon Dioxide (SiO2)
mineral
Dyed Quartz Pendant
Silicon Dioxide (SiO2) with artificial dye
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Dyed Blue Agate
Silicon Dioxide (SiO2) with artificial pigment
mineral