Included Quartz Beads (likely Phantom Quartz or Garden Quartz)
Quartz (SiO2) with various mineral inclusions
Mineral
Category
Sedimentary (Base), Then Artificial
Browse sedimentary (base), then artificial specimens identified by the Rock Identifier community.
Amber
(C10H16O)n – an amorphous organic substance, primarily composed of polymerized isoprenoids.
Mineral
River Rock / Stream Pebble
Fluvial Clast / Rounded Sedimentary Particle
Sedimentary Rock (possibly composed of various minerals)
Gneiss (Banded Gneiss)
Gneiss
metamorphic
Scoria (Lava Rock)
Mafic Volcanic Scoria
igneous
Druzy Agate (Star-cut Geode Slice)
Silicon Dioxide (SiO2) - Microcrystalline and Macrocrystalline Quartz
mineral
Chinese Writing Stone
Porphyritic Basalt or Porphyritic Andesite
igneous
Phantom Quartz with Chlorite and Hematite inclusions
Silicon Dioxide (SiO2) with inclusions of Chlorite group minerals and Hematite (Fe2O3)
mineral
Flowerstone (Porphyry)
Porphyritic Andesite or Basalt
igneous
Opalite
Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Smoky Quartz (Tumbled)
Smoky Quartz (SiO2 - Silicon Dioxide)
mineral
Citrine
Quartz (SiO₂)
mineral
Quartz Geode (partially formed/chalcedony with iron staining)
Quartz (SiO2) with Chalcedony (cryptocrystalline quartz) and likely Iron Oxides/Hydroxides
Mineral/Sedimentary Rock Feature
Sandstone
Arenite
sedimentary
River Stone (Granitic Gneiss)
Foliated Granitic Gneiss
metamorphic
Botryoidal Chalcedony with Calcite
Chalcedony (SiO2 with accessory minerals, likely CaCO3)
Mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Chinese Writing Stone
Porphyritic Basalt or Porphyritic Andesite with Feldspar phenocrysts (SiO2-rich Silicates)
igneous
Porphyry
Porphyritic Rhyolite or Andesite
igneous
Blue Lace Agate
Chalcedony (a form of Quartz) - SiO2
Mineral
Smoky Quartz
SiO2 (Silicon Dioxide)
Mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss (Banded Gneiss)
Gneiss
metamorphic
Red Tiger's Eye beads
Tiger's Eye (variety of Chalcedony, SiO2)
Mineral / Gemstone (variety of Quartz)
Jasper
Silicon dioxide (Microcrystalline Quartz, SiO2)
sedimentary
Goldstone (Red)
Aventurine Glass (SiO2 + Cu)
Synthetic Glass (Often categorized as a simulated mineral)
Amber
Succinite (Fossilized Tree Resin)
mineral
Kambaba Jasper
Stromatolite (Fossilized Algae)
sedimentary
Gneiss (Banded Gneiss)
Gneiss
metamorphic
Sandstone (likely Arkosic)
Arenite (SiO2 with KAlSi3O8)
sedimentary
River/Stream Pebble
Clast / Detrital Grain / Rounded Sedimentary Particle (Compositionally variable, commonly Quartz, Feldspar, Chert, or other resistant rock fragments)
Mineral, specifically a rock fragment
Pearls
Aragonite (calcium carbonate) and Conchiolin
Mineraloid
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Gneiss (specifically Banded Gneiss)
Gneiss
metamorphic
Red Siltstone
Siltstone (primarily quartz and feldspar sized 0.0039 to 0.0625 mm)
sedimentary
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3)
sedimentary
Gneiss
Gneiss
metamorphic
Green Aventurine
Aventurine Quartz (SiO2 with fuchsite inclusions)
Mineral