Leopardite
Quartz porphyry / Quartz monzonite with manganese oxide spots
igneous
Category
Igneous And Metamorphic
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Biotite Mica
K(Mg, Fe)3(AlSi3O10)(F, OH)2
mineral
Serpentine
Antigorite-Lizardite-Chrysotile (Mg3Si2O5(OH)4)
metamorphic
Epidote with Quartz Vein
Epidote-bearing metamorphic rock with quartz (Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Quartz (likely a form of massive or vein quartz)
Quartz (SiO₂)
Mineral
Sodalite in Quartz
Na8(Al6Si6O24)Cl2 (Sodalite) / SiO2 (Quartz)
metamorphic
Quartzite River Pebble
Metamorphic Quartzite (SiO2)
metamorphic
Ruby (Corundum)
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
mineral
Mica (Biotite or Phlogopite variety)
Phyllosilicate (complex mineral formula involving K, Mg, Fe, Al, Si, and O)
mineral
White Quartz Pendant
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Sunstone
Feldspar group (Plagioclase / Oligoclase)
mineral
Pink Feldspar
Potassium Feldspar (Microcline or Orthoclase), KAlSi3O8
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Moonstone
Orthoclase (Potassium Feldspar), (K,Na)AlSi3O8
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Mossy Rock
Mixed lithology rock with Bryophyta (moss)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Sapphire
Corundum (Al2O3)
gemstone
Quartz
Silicon Dioxide (SiO2)
mineral
Tumbled Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
gemstone
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Quartzite or Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Gravel / Crushed Stone
Aggregate (mixed mineral rock fragments)
sedimentary
Serpentine / Antigorite
Mg3Si2O5(OH)4 (Serpentine Group)
metamorphic
Orange Aventurine (or Tumbled Carnelian)
Quartz (SiO2) with inclusions
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz fragment (Pebble)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Pyrite (FeS2)
mineral
Mica (Biotite or Phlogopite Buchsam)
Silicate Mineral (Phyllosilicate family)
mineral
Fuchsite in Quartz (or Emerald in Fuchsite / Verdite)
Chromian Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2) in Quartz Matrix
metamorphic
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Tumbled Stones Collection (Tiger's Eye, Snowflake Obsidian, Aventurine, etc.)
Silica minerals (primarily SiO2)
mineral