Dalmation Stone (often called Dalmatian Jasper)
Antiperthite-rich Microgranite
igneous
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.
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Quartz
SiO2 (Silicon dioxide)
mineral
White Chalcedony (likely Common Opal or Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
mineral
Septarian Nodule
Septarian Concretion (Calcium Carbonate/Aragonite/Calcite)
sedimentary
Granitic Pegmatite (with Pink Feldspar and Quartz)
Pegmatite (KAlSi3O8 + SiO2)
igneous
Quartz with Iron Oxide Monzonite or Sandstone contact
Quartz (SiO2) with Limonite/Hematite staining
mineral
Septarian Nodule (Galt)
Calcareous concretion / Septarian concretion
sedimentary
Poppy Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with inclusions
mineral
Chert / Flint Pebble
Microcrystalline Silica (SiO2)
sedimentary
Quartz / Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Crazy Lace Agate
Chalcedony (SiO2)
Mineral
Yellow Aventurine (or Citrine-colored Quartz)
Silicon Dioxide (SiO2) with inclusions
metamorphic
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Polished orbicular jasper (likely ocean jasper)
Silicified microcrystalline quartz/chalcedony with iron-oxide-rich orbicules; commonly called Ocean Jasper
mineral
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
mineral
Chalcedony (Yellow/Amber variety)
Silicon Dioxide (SiO2)
mineral
Tumbled Quartz (Peach Quartz / Red Quartz)
Silicon Dioxide (SiO2)
mineral
Fossil Coral
Hexagonaria or Rugose Coral (petoskey stone / fossilized rugose or tabulate coral)
fossil
Petrified Wood
Silicified Wood (SiO2 - Quartz/Chalcedony replacement)
Mineral / Fossil
Chert
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Serpentinite
Serpentinite (composed largely of serpentine group minerals including antigorite, lizardite, and chrysotile)
metamorphic
Gneiss (specifically Granitic Gneiss)
Gneissic Metamorphic Rock
metamorphic
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and clay impurities
sedimentary
Green Aventurine
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
mineral
Quartz with Host Rock Matrix
Silicon Dioxide (SiO2)
mineral
Conglomerate
Conglomerate (Detrital sedimentary rock)
sedimentary
Quartzite River Rock (with Limonite staining)
Quartzite (SiO2)
metamorphic
Chert (often called Flint or Jasper if reddish)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper Agate (Carnelian Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Amygdaloidal Basalt
Vesicular-Amygdaloidal Basalt (Mafic Extrusive)
igneous
Serpentine
Serpentine-group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4)
metamorphic
Quartzite pebble with Quartz and Mica
Metamorphic Quartzite (SiO2 with accessory minerals)
metamorphic
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Serpentinite
Serpentinite (composed largely of serpentine group minerals including Antigorite, Lizardite, or Chrysotile)
metamorphic
![Turquoise with Pyrite (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O] with Iron Pyrite (FeS2)) — mineral](https://media.rockidentification.com/157e6415-0364-437c-b0a4-74ad43800d08-thumbnail.jpg)
Turquoise with Pyrite
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O] with Iron Pyrite (FeS2)
mineral
Diamond (or Diamond Simulant)
Carbon (C)
mineral