Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
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.
Dinosaur Bone (Gembone)
Petrified Dinosaur Bone (Apatite/Silica replacement)
sedimentary
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Petrified Wood
Silicified wood (Quartz/Chalcedony replacement) SiO2
sedimentary
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
igneous
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite mica)
Mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Nephrite Jade (or Serpentine)
Nephrite (a variety of amphibole mineral tremolite-actinolite) or Serpentine Group minerals
Mineral/Rock
Red Jasper (Polished)
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Rose Quartz with Schist Matrix
Silicon Dioxide (SiO2) with Mica-Schist
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions
sedimentary
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Greenstone
Metabasalt (Greenstone facies)
metamorphic
Chert with Epidote and Jasper inclusions
SiO2 (Silicon Dioxide) with Ca2(Al, Fe)3(SiO4)3(OH) inclusions
sedimentary
Blue Quartzite
Quartzite with inclusions (often Dumortierite or Magnesio-riebeckite), SiO2
metamorphic
Jasper
Silicon Dioxide (SiO2)
sedimentary/mineral
Quartzite
Quartzite (Primary mineral: SiO2)
metamorphic
Serpentine
Serpentine Group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Quartz (Smoky/Grey Variety)
Silicon Dioxide (SiO2)
mineral
Septarian Nodule (Dragon Stone)
Septarian Geode (CaCO3 + Mg + Fe)
sedimentary
Carnelian Agate Nodule
Silicon Dioxide (SiO2) - Carnelian Chalcedony
mineral
Fossilized Horn Coral
Order Rugosa (Rugose Coral)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Druzy Quartz on Chert/Chalcedony
Silicon Dioxide (SiO2)
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic Volcanic Rock)
igneous
Quartz / Common Agate
Silicon Dioxide (SiO2)
mineral
Septarian Nodule
Septarian Concretion (Calcium Carbonate/Aragonite/Calcite)
sedimentary
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Amygdaloidal Basalt
Basalt with secondary mineral infillings (SiO2, (Ca,Na)2-3(Mg,Fe,Al)5Si8O22(OH)2)
igneous
Jasper
Silicon Dioxide (SiO2)
sedimentary
Banded Sandstone
Arenite (with iron oxide banding)
sedimentary
Quartz with Limonite Staining
Silicon Dioxide (SiO2) with Hydrated Iron Oxide (FeO(OH)·nH2O)
Mineral
Quartzite and Sandstone Pebbles
Silicon dioxide (SiO2)
metamorphic and sedimentary
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)
metamorphic
Septarian Nodule (Dragon Stone)
Septarian Concretion (CaCO3 with Siderite and Calcite)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Greenstone
Metabasalt / Chlorite-Epidote Schist
metamorphic