Dalmatian Stone
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Category
Igneous Rock
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Dalmatian Jasper
Dalmatian Stone (not a true Jasper, primarily a Perthitic Feldspar with Arfvedsonite)
igneous
Smoky Quartz and Chalcedony Geode Fragment
Silicon Dioxide (SiO2)
mineral
![White Topaz (Topaz [Al2SiO4(F,OH)2]) — mineral](https://media.rockidentification.com/2c265192-c5e5-4e01-9c19-5bc3c68e2d01-thumbnail.jpg)
White Topaz
Topaz [Al2SiO4(F,OH)2]
mineral
Agate
Silicon Dioxide (SiO2) - Chalcedony variant
mineral
Carnelian
Carnelian (Silica/Quartz Variety), SiO2 with Fe2O3 impurities
mineral
Ocean Jasper
Orbicular Jasper (SiO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
mineral
Flower Agate
Chalcedony (Silicon Dioxide, SiO2) with Opaque Spherulitic Inclusions
mineral
Quartzite (river pebble) and Gabbro (crushed rock)
Quartzite (metamorphosed Quartz Sandstone, SiO2) and Gabbro (Plagioclase-Clinopyroxene rock)
Metamorphic and Igneous
Porphyry (specifically Porphyritic Basalt or Andesite)
Porphyritic extrusive igneous rock (Mg,Fe)2SiO4 (Olivine inclusions/Plagioclase Feldspar)
igneous
Basalt (River Rock)
Basalt (Mafic volcanic rock)
igneous
Snowflake Obsidian
Obsidian with Spherulitic Cristobalite (SiO2)
igneous
Obsidian
Obsidian (Volcanic Glass, SiO2)
igneous
Agate
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
River Stone (Granitic Gneiss)
Foliated Granitic Gneiss
metamorphic
Industrial Slag
Anthropogenic Vitreous Slag
igneous
Obsidian
Obsidian (Volcanic Glass)
igneous
Granite
Granite (phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)
igneous
Dragon Blood Jasper
Epidote-containing Quartz Chalcedony (SiO2 with Ca2(Al, Fe)3(SiO4)3(OH))
metamorphic
Dragon Vein Agate
Chalcedony (Quartz) - SiO2
mineral
Basalt (River Rock/Cobble)
Basalt (no specific mineral formula as it's a rock)
Igneous
Obsidian
Obsidian (Volcanic Glass, complex silicate)
igneous
Obsidian
Obsidian (principally SiO2)
igneous
Amphibolite
Amphibolite
metamorphic
Jasper
Jasper (Silicon Dioxide, SiO2 plus iron oxide impurities)
sedimentary
Granite Cobble / Rounded Granite River Rock
Granite
Igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Basalt
Basalt (comprising plagioclase, pyroxene, and olivine)
igneous
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Flower Agate
Chalcedony (Silicon Dioxide) with Plume Inclusions, SiO2
mineral
Granite
Granite (a phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)
igneous
Red Quartz (Carnelian/Red Jasper Agate)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Obsidian
Obsidian (principally SiO2)
igneous
Larvikite
Monzonite (intermediate intrusive igneous rock containing plagioclase, alkali feldspar, augite, and biotite)
igneous
Granite
Granite (phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)
igneous
Granite
Phaneritic Felsic Igneous Rock (composed主に of SiO2, Al2O3, K2O, Na2O)
igneous
Granite (Pink/Red variety)
Phaneritic Felsic Intrusive Igneous Rock (composed primarily of Quartz, K-Feldspar, and Plagioclase)
igneous
Dalmatian Jasper (or Dalmatian Stone)
Dalmatian Stone (A peralkaline felsite composed of feldspar, quartz, and sodic amphibole)
igneous
Obsidian
Obsidian (Volcanic glass, primarily SiO2)
igneous
Granite
Phaneritic intrusive igneous rock (composed mainly of Quartz SiO2, Feldspar KAlSi3O8, and Biotite/Mica)
igneous
Nuummite
Nuummite (Orthoamphibole rock composed of Anthophyllite and Gedrite)
metamorphic