Granite
Phaneritic plutonic rock (primarily Quartz, Feldspar, and Mica)
igneous
Category
Igneous Or Sedimentary (Anthropogenic Modification)
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Granite
Granite (Felsic Plutonic Rock)
igneous
Granite
Granite (composed mainly of Quartz, Feldspar, and Mica)
igneous
Granite
Intrusive igneous rock (SiO2 range 65-75%)
igneous
Peacock Ore
Bornite (Cu5FeS4)
mineral
Sugilite
Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)
mineral
Blue Apatite
Fluorapatite / Apatite group (Ca5(PO4)3(F,Cl,OH))
mineral
Diorite with Quartz Veins
Diorite
igneous
Basalt with Quartz Veins
Amygdaloidal Basalt (matrix) with Crystalline SiO2 (veins)
igneous
Granite with Quartz Vein
Granite
Igneous
Granite or Pegmatite in host rock
Granitoid / Felsic Intrusive Rock
Igneous
Aventurine (likely Green Aventurine)
Silicon Dioxide (SiO2) with mineral inclusions
Mineral/Mineraloid within a rock matrix
Red Sandstone or Brick Fragment
Arenite (if sandstone)
sedimentary
Porphyry (Rhyolite or Andesite Porphyry)
Porphyritic Igneous Rock
igneous
Siltstone Pebble with Veining
Siltstone
sedimentary
Calcite
Calcite (CaCO3)
Mineral
Milky Quartz with Matrix
Silicon Dioxide (SiO2)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Quartz (likely milky quartz or a stained variety)
Silicon Dioxide (SiO₂)
Mineral
Sandstone (Garden Boulder)
Sandstone (SiO2 dominated)
sedimentary
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
sedimentary
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
sedimentary
Sandstone
Arenite (SiO2 principal)
sedimentary
Fine-grained dark igneous rock, likely basalt
Basalt; predominantly plagioclase feldspar and pyroxene, commonly with minor olivine and iron-titanium oxides
igneous
Dark mafic igneous rock, likely basalt or gabbro
Basalt–gabbroic rock; chiefly plagioclase feldspar and pyroxene, possibly olivine
igneous
Likely basalt or other dark igneous rock
Basalt; predominantly plagioclase feldspar and pyroxene, possibly olivine
igneous
Dark mafic igneous rock, likely basalt or gabbro
Basalt–gabbroic rock; mainly plagioclase feldspar and pyroxene, possibly olivine or magnetite
igneous
Dark mafic igneous rock, likely basalt or gabbro
Basalt–gabbroic rock; chiefly plagioclase feldspar and pyroxene, possibly olivine and iron oxides
igneous
Sandstone (Ferruginous)
Clastic sedimentary rock (SiO2 with Fe2O3)
sedimentary
Mudstone
Lutylite (group of fine-grained sedimentary rocks)
sedimentary
Sandstone
Arenite
sedimentary
Quartz Vein in Host Rock (Breccia/Rhyolite)
Silicon Dioxide (SiO2) with matrix
Mineral in Igneous/Sedimentary host
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Calcite (commonly referred to as Orange Calcite or Honey Calcite given its color)
Calcite
Mineral
Slag Glass
Amorphous Silica / Glass Slag
industrial byproduct (anthropogenic rock-like material)
Sea Glass (Teal/Turquoise)
Amorphous Silica (SiO2) with trace metal oxides
Anthropogenic (Man-made material processed by nature)
Sea Glass (Turquoise/Aqua)
Amorphous Silica (SiO2) with transition metal dopants
Anthropogenic (Man-made material processed by nature)
Pyrite
Iron Sulfide (FeS2)
mineral
Dalmatian Stone
Dalmatian Stone (formerly called Dalmatian Jasper)
igneous
Mica
Phlogopite or Biotite group (KMg3(AlSi3O10)(F,OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)
mineral
Crushed Granite Gravel
Granite (Plagioclase feldspar, Quartz, Alkali feldspar, Biotite)
igneous
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
igneous