Rose Quartz Bead
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Category
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Rose Quartz Bead
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Lake Superior Agate
Silicon Dioxide (SiO2) - variety: banded chalcedony quartzite
Chert Pebble
Silicon dioxide (SiO2)
Fire Agate (Rough)
Silicon Dioxide (SiO2) - Variety of Chalcedony
Polished brecciated jasper
Jasper, an opaque microcrystalline quartz variety (SiO₂), with iron-oxide and clay/mineral inclusions
Greenish Feldspathic Rock / Epidote Granite (Unakite-type or Epidote-bearing rock)
Epidotized Metamorphic/Igneous Rock
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Picture Jasper
Impure variety of silica (SiO2)
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
Rose Quartz
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides
Jasper (Iron-stained Chert)
Silicon Dioxide (SiO2) with impurities of Iron Oxide
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Blue Sapphire
Corundum (Al2O3)
Yellow Jasper
Jasper (Silica-rich Microcrystalline Quartz, SiO2 with Iron impurities)
Jasper
Jasper (Cryptocrystalline variety of Quartz, SiO2)
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
Citrine
Silicon Dioxide (SiO2)
Pyrite
Pyrite (Iron sulfide, FeS₂)
Jasper
Jasper (Silicon Dioxide, SiO2 plus various impurities)
Jasper
Silicon dioxide (SiO2) with iron oxide impurities
Amazonite
Amazonite (KAlSi3O8)
Ametrine
SiO2 (silicon dioxide)
Black Tourmaline (Schorl)
Schorl (Na(Fe^2+)3Al6(Si6O18)(BO3)3(OH)4)
Tumbled carnelian agate
Cryptocrystalline quartz (SiO₂), chalcedony variety with iron-oxide coloration
Jasper
Silicon Dioxide (SiO2) with impurities
Yellow Jasper (Chert variant)
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Jasper
Silicon dioxide (SiO2)
Chert (Flint variety)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Chert (concretionary/nodular variant)
Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions
Jasper or Agate
Silicon dioxide (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Corundum (Sapphire variant)
Aluminum Oxide (Al2O3)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Mixed collection of Quartz varieties, Chalcedony, and metamorphic pebbles
Mixed gemstones (primarily Silicon Dioxide - SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Yellow Agate (Chalcedony)
Silicon Dioxide (SiO2)
Quartz (Rose or Clear variety)
Silicon Dioxide (SiO2)