Granite
Granitoid
Category
Browse synthetic (not a natural rock) specimens identified by the Rock Identifier community.
Granite
Granitoid
Rough Diamond
Diamond (Native Carbon, C)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Diamond
Diamond (Pure Carbon, C)
Coquina (Limestone)
Bioclastic Limestone (CaCO3)
Blue Quartzite (Dyed)
Silicon Dioxide (SiO2) with inclusions
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Aventurine
Silicon Dioxide (SiO2) with inclusions
Snakeskin Agate
Agate (Cryptocrystalline Quartz, SiO2)
Slag (Industrial Glass)
Artificial Vitreous Silicate
Gold Nugget
Native Gold (Au)
Gold Flake
Native Gold (Au)
Citrine
Silicon Dioxide (SiO2)
Citrine Quartz Crystal Cluster
Silicon Dioxide (SiO2) with iron impurities
Pearl
Calcium Carbonate (CaCO3) - mainly Aragonite and Calcite
Green Aventurine
Aventurine Quartz (SiO2 + Muscovite/Fuchsite)
Glauconitic Sandstone
Greensand (Glauconite-bearing sandstone)
Chakra Stone Tower (Composite Multi-Mineral)
Crystalline Silicon Dioxide composite (SiO2) with various inclusions
Gold Nuggest
Native Gold (Au)
Pink Tumbled Quartz (Dyed)
Silicon Dioxide (SiO2)
Quartz Pebble (Hag Stone / Adder Stone)
Silicon Dioxide (SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Amethyst (Polished/Carved Crystal)
Silicon Dioxide (SiO2) with trace Iron (Fe)
Sandstone
Arenite
Rough Sapphire
Corundum (Al2O3)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Quartz (Citrine variety)
Silicon Dioxide (SiO2)
Adventurine (Green)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Pink Quartzite
Metamorphosed Quartz Arenite (SiO2)
Gold Nugget
Native Gold (Au)
Gold Nugget
Native Gold (Au)
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite mica)
Diamond
Diamond (C)
Rough Diamond
Diamond (Native Element Carbon, C)
Agate (Moss or Banded Agate variety)
Agate (Silicon Dioxide - SiO2)
Diamond
Carbon (C)
Ambergris
Ambergris (Coprolite-adjacent/Organic secretion)
Citrine
Silicon dioxide (SiO2)
Blue Sphalerite (likely dyed or treated Druzy Quartz/Agate)
Zinc Sulfide (ZnS) or Silicon Dioxide (SiO2) with trade-name enhancement
Cubic Zirconia (Diamond Simulant)
Zirconium Dioxide (ZrO2)
Dyed Pink Agate Slice
Cryptocrystalline variety of Quartz (SiO2)
Dyed Pink Dragon Vein Agate
Silicon Dioxide (SiO2) with artificial dye additives