Dalmatian Stone
Peralkaline rhyolite
igneous
Category
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Granodiorite
Granodiorite (intermediate plutonic rock)
igneous
Stream-Rounded Shale or Mudstone
Argillaceous sedimentary rock
sedimentary
Granite Gneiss
Gneiss (containing quartz, alkali feldspar, plagioclase, biotite/amphibole)
metamorphic
White Marble
Recrystallized Calcite (CaCO3)
metamorphic
Pyrite in Matrix
Iron Sulfide (FeS2)
mineral
Quartz with Iron Staining
Silicon Dioxide (SiO2) with Ferruginous Oxides
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (containing quartz/agate or zeolite fill)
igneous
Boxwork or Septarian Concretion
Septarian nodule / Boxwork weathering
sedimentary
Sandstone
Arenite (primarily Quartz and Feldspar)
sedimentary
Sandstone (Ferruginous)
Arenite (Fe-oxide enriched)
sedimentary
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
mineral
Dalmatian Stone
Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)
igneous
Sandstone (likely Arkosic)
Arenite (SiO2 based)
sedimentary
Chert with Calcite Veins
Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3) intrusions
sedimentary
Sandstone (Ferruginous)
Arenite with Iron Oxides
sedimentary
Green Jasper Pebble
Microcrystalline Quartz (SiO2) with impurities
sedimentary
Granite / Feldspar gravel
Granite (felsic intrusive igneous rock)
igneous
Pink Granite
Phaneritic Plutonic Rock (Felsic)
igneous
Mixed Gravel and Pebbles
Polylithic Alluvial Aggregate
igneous, sedimentary, and metamorphic mix
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Tumbled White Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Seashell Fragment
Calcium Carbonate (CaCO3) in the form of Aragonite or Calcite
mineral
Diamond (in Matrix)
Carbon (C)
mineral
Jasper
Silicon Dioxide (SiO2)
mineral
Goethite
Goethite (FeO(OH))
mineral
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Arenite (Sedimentary rock)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Fossilized Bone
Petrified Bone / Biogenic Sedimentary
fossil
Grey Agate (Tumbled)
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Basalt
Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
igneous