Chert with Quartz Veins
Microcrystalline Quartz (SiO2)
sedimentary
Category
Man Made Glass (Often Grouped With Minerals In Lapidary)
Browse man made glass (often grouped with minerals in lapidary) specimens identified by the Rock Identifier community.
Smoky Quartz (Faceted Beads)
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Dendritic Jasper (River Stone)
Silicon Dioxide (SiO2) with Manganese/Iron Oxide inclusions
sedimentary
Chert (specifically Gray Chert/Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Quartz / Quartzite Fragment
Silicon Dioxide (SiO2)
mineral / metamorphic
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Quartz (Tumbled)
Silicon Dioxide (SiO2)
mineral
Green Slag Glass
Amorphous Silica Glass (Anthropogenic)
Industrial byproduct (often mistaken for obsidian or mineral)
Chert (Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
metamorphic
Wonderstone (Sandstone)
Liesegang Banded Sandstone (SiO2 dominated)
sedimentary
Strawberry Quartz (Hematoid Quartz)
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
mineral
Lepidolite in Quartz (or Lepidolite Ore)
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) in Quartz (SiO2)
igneous
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz with Hematite/Limonite oxides)
sedimentary
Agate (Beads)
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz Geode Pebble
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Serpentine
Serpentinite (rock) containing serpentine minerals (e.g., Antigorite, Lizardite, Chrysotile)
Metamorphic rock
Petrified Wood (Agatized/Silicified Wood)
Silicified Wood / Chalcedony (SiO2)
sedimentary
White Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
mineral
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Septarian Nodule
Septarian Concretion (Composition: Calcite, Aragonite, and Limestone/Clay)
sedimentary
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Basalt
Basalt
igneous
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Quartz pebble
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Iron-stained Quartz (SiO2 with Fe2O3 impurities)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace impurities of titanium, iron, or manganese
mineral
Quartzite Pebbler
Quartzite (primarily SiO2)
metamorphic
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Leopard Skin Jasper
Silicon Dioxide (SiO2) with various inclusions
sedimentary
Azurite
Azurite (Cu3(CO3)2(OH)2)
mineral
Massive Quartz (Milky or Gray)
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace elements of titanium, iron, or manganese
mineral
Green Aventurine
Aventurine (a variety of Quartz, SiO2 with fuchsite inclusions)
Mineral
Petrified Wood
Silicified Wood (SiO2)
metamorphic
Sandstone (specifically Lithic or Quartz Arenite)
Arenite (composed primarily of SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral