Mineral In A Matrix (Likely Quartz Or Feldspar)

Graphic Granite

Pegmatitic Quartz-Feldspar Granite

Amygdaloidal Rhyolite (often called Lake Superior Agate relative)

Rhyolite with Calcite/Quartz amygdules (SiO2 and secondary minerals)

Granite Pebble (Weathered)

Phaneritic Felsic Igneous Rock

Greywacke

Lithic wacke (variety of Sandstone)

Pink Granite

Granite (Phaneritic igneous rock rich in Alkali Feldspar and Quartz)

K2 Jasper (K2 Granite)

Azurite-in-Granite

Porphyritic Andesite

Andesite

Quartz with Tourmaline and Iron Staining

Silicon Dioxide (SiO2) with Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)

Granodiorite Core

Granodiorite

Sandstone (Greywacke/Lithic Sandstone)

Arenite (composed primarily of SiO2)

Amazonite

Amazonite (KAlSi3O8)

Granite and Igneous Mix

Phaneritic Felsic to Mafic Intrusive Rocks

Sandstone

Arenite (primarily SiO2)

Coarse-grained Quartz with Feldspar inclusions

Crystalline Quartz (SiO2) with Orthoclase/Plagioclase Feldspar inclusions

Orthoclase Feldspar (Potassium Feldspar)

KAlSi3O8 (Potassium Aluminum Silicate)

Ocean Jasper

Orbicular Jasper (varietal of SiO2 with impurities)

Graywacke (Sandstone)

Graywacke Sandstone

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lepidolite - Lithium-rich Mica)

Dalmatian Jasper (Dalmatian Stone)

Dalmatian Stone (primarily Feldspar, Quartz, and Arfvedsonite/Tourmaline)

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

Granite

Granite (High-silica plutonic rock)

Sandstone (likely Arkosic)

Arenite (SiO2 with KAlSi3O8)

Gold Ore (Auriferous Quartz with Chalcopyrite/Pyrite)

Au (Native Gold) in Quartz (SiO2) with FeS2 (Pyrite) or CuFeS2 (Chalcopyrite)

Sandstone

Arenite (Siliclastic sedimentary rock)

Granitic Pegmatite

Granite Pegmatite (coarse-grained intrusive igneous rock)

Dalmatian Jasper (Dalmatian Stone)

Perthitic feldspar with Arfvedsonite inclusions

Sandstone

Arenite (SiO2 based with mineral cement)

Dalmatian Stone

Dalmatian Jasper (Aplitic Perthite)

Quartz in Limonite-rich Matrix

Silicon Dioxide (SiO2) with Goethite/Limonite FeO(OH)·nH2O

Milky Quartz with Matrix

Quartz (Silicon Dioxide, SiO2)

Basalt with Epidote (Porphyry)

Basalt (with inclusions of Epidote/Feldspar)

Granite

Felsic Plutonic Rock (primarily SiO2)

Garnetiferous Quartzite (Garnet Gneiss Pebble)

Garnet-bearing Quartzite or Quartz-Feldspar Gneiss

Milky Quartz in Conglomerate Matrix

Silicon Dioxide (SiO2) within Clastic Sedimentary Rock

Granite Pebble

Granite (Phaneritic Quartz-Feldspar intrusive rock)

Quartz (Milky/Smoky variety on matrix)

Silicon Dioxide (SiO2)

Pink Granite with Quartz Vein

Phaneritic Plutonic Felsic Rock (K-feldspar + Quartz + Plagioclase + Mica)

Milky Quartz with Chlorite/Mica inclusions

Silicon Dioxide (SiO2) with phyllosilicate inclusions

Amygdaloidal Basalt

Amygdaloidal Basalt (extrusive volcanic rock with secondary mineral infilling)

Sandstone (clastic)

Clastic Sedimentary Rock (primarily composed of SiO2)

Amazonite (with smoky quartz/feldspar inclusions)

K(AlSi3O8), Microcline (Tectosilicate)

Quartz / Calcite Vein Rock

Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)