Rough Garnet (likely Almandine or Pyrope)
Garnet group; Almandine Fe3Al2(SiO4)3 or Pyrope Mg3Al2(SiO4)3
Category
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Rough Garnet (likely Almandine or Pyrope)
Garnet group; Almandine Fe3Al2(SiO4)3 or Pyrope Mg3Al2(SiO4)3
Quartz (Milky Quartz)
Silicon Dioxide (SiO₂)
Yellow Quartz (Citrine or Yellow Chalcedony)
Silicon Dioxide (SiO2)
Sapphire
Corundum (Al2O3)
Quartz (Milky/Crystalline variety)
Silicon Dioxide (SiO2)
Serpentine (Healerite variety)
Serpentine group, Mg3Si2O5(OH)4
Rose Quartz
Silicon dioxide (SiO2)
Yellow Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon dioxide (SiO2)
Jasper
Silicon dioxide (SiO2) with iron impurities
Peridot
Olivine ((Mg,Fe)2SiO4)
Yellow Quartz (Citrine/Lemon Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz
Quartz (Silicon Dioxide) - SiO2
Banded Agate (specifically Carnelian Agate)
Silicon Dioxide (SiO2)
Aventurine (Green Aventurine)
Quartz variety (SiO2 with fuchsite inclusions)
Dalmatian Stone (Dalmatian Jasper)
Dalmatian Stone (A variety of Perthite / Aplite)
Chert
Chert (Microcrystalline Quartz, SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Turquoise (likely Sleeping Beauty variety or treated Howlite imitation)
Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O
Smoky Quartz
Silicon Dioxide (SiO2)
Yellow Jasper (Iron-stained Chert)
Silicon Dioxide (SiO2) with iron oxide (Limonite/Goethite) inclusions
Red Jasper (Ocherous Chert)
Silicon Dioxide (SiO2) with Hematite impurities
Jasper Pebble
Tumbled Jasper (Microcrystalline Quartz, SiO2)
Quartz
Silicon Dioxide (SiO2)
Citrine
Quartz (SiO2) - specifically, a variety of macrocrystalline quartz
Carnelian
SiO2 (Silicon Dioxide)
Carnelian
Silicon dioxide (SiO2) with iron oxide impurities
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron Oxide inclusions
Agate
SiO2
Rose Quartz
Silicon Dioxide (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Jadeite
Jadeite (NaAlSi2O6)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Rose Quartz
Silicon Dioxide (SiO2)
Chlorastrolite (Greenstone)
Chlorastrolite (variety of Pumpellyite) - Ca2(Mg,Fe)Al2(SiO4)(Si2O7)(OH)2 · H2O
Jasper (Mookaite / Brecciated Jasper)
Microcrystalline Quartz (SiO2 with iron oxide inclusions)
Chert (often referred to as Flint or Jasper when pigmented)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Obsidian
Volcanic Glass (70% or more SiO2)
Tumbled carnelian (probable)
Cryptocrystalline silica, mainly chalcedony (SiO₂), colored orange-red by iron oxides