Diamond Druzy (Crystalline Diamond)
Carbon (C)
mineral
Category
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Red Quartz (Druzy)
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
mineral
Basalt
Extrusive mafic igneous rock
igneous
Druzy Quartz Geode (likely Smokey Quartz variety)
Silicon Dioxide (SiO2) - specifically a geode formation lined with druzy quartz crystals, with a likely brownish hue indicating smokey quartz.
Mineral structure/Rock
Granite
Granite (Felsic Plutonic Rock)
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Ferruginous Sandstone
Arenite with Iron-Oxide Cement (SiO2 with Fe2O3/FeO(OH))
sedimentary
Pink Granite
Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Plagioclase)
igneous
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
mineral/igneous
Dalmatian Stone (Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Granite
Intrusive Felsic Igneous Rock
igneous
Diorite (Dalmatian Stone variant)
Intermediate Phaneritic Igneous Rock
igneous
Granite
Phaneritic Granocrystalline Igneous Rock
igneous
Diorite
Intermediate Phaneritic Igneous Rock
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Garnet in Matrix (likely Almandine in Quartz/Mica Schist)
Almandine Garnet (Fe3Al2(SiO4)3) in Quartz-Feldspar host rock
metamorphic
Sandstone
Arenite (Sedimentary rock composed of sand-sized minerals or rock grains)
sedimentary
Greenstone / Epidosite
Metamorphosed Mafic Igneous Rock (Epidote-Chlorite group)
metamorphic
![Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral](https://media.rockidentification.com/98a2a2f8-be01-4831-a944-de6fd3830399-thumbnail.jpg)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
mineral
Pink Granite
Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Mica)
igneous
Blue Lace Agate
Silicon Dioxide (SiO₂), a variety of Chalcedony
mineral
Quartz Druzy on Agate (River Cobble)
Silicon Dioxide (SiO2)
Mineral / Sedimentary (often associated with volcanic hosts)
Conglomerate (or Breccia)
Clastic Sedimentary Rock (Conglomeratic)
sedimentary
Greenschist (Chlorite Schist)
Greenschist (Metamorphic rock dominated by chlorite, actinolite, and epidote)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Fluorite (often referred to as Rainbow Fluorite)
Fluorite (Calcium Fluoride, CaF2)
mineral
Milky Quartz Geode with Chlorite
Silicon Dioxide (SiO2) with Chlorite group inclusions
mineral
Granite Pebble
Felsic Intrusive Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Sandstone Chert Concretion
Silica-cemented Concretion (primarily SiO2)
sedimentary
Granitic Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Diorite (River Cobble)
Intermediate plutonic igneous rock
igneous
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Bumblebee Jasper
Carbonate-rich volcanic rock containing Sulfur and Arsenic (Realgar/Orpiment)
sedimentary
Lapis Lazuli
Lapis Lazuli (a rock, not a single mineral; primary mineral is Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2
Metamorphic rock
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Prehnite
Prehnite Ca2Al2Si3O10(OH)2
mineral
Quartz (Milky or Smoky variant)
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Desert Rose
Baryte or Gypsum variation (CaSO4·2H2O or BaSO4)
mineral