Mineral In A Matrix (Likely Quartz Or Feldspar)

Black Tourmaline in Quartz

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) in Silicon Dioxide (SiO2)

Smoky Quartz and Orthoclase Feldspar

Granitic Pegmatite (SiO2 + KAlSi3O8)

Green Rutilated Quartz

Silicon Dioxide with Actinolite inclusions (SiO2 + Ca2(Mg,Fe)5Si8O22(OH)2)

Granite

Granite (silica-rich intrusive igneous rock)

Granite

Intrusive igneous felsic rock

Granite

Granite (composed mainly of Quartz, Feldspar, and Mica)

Granite

Granite (comprised primarily of Quartz (SiO2), Feldspar (KAlSi3O8), and Mica (KAl2(AlSi3O10)(OH)2))

Granite

Phaneritic plutonic rock (Felsic)

Diorite

Plutonic Igneous Rock (Intermediate Composition)

Greenstone Porphyry

Porphyritic Metavolcanic Rock

Granite

Granite (Mainly Quartz SiO2 and Feldspar KAlSi3O8)

Amygdaloidal Basalt with Epidote

Vesicular Basalt with secondary Epidote/Quartz mineral infill

Conglomerate

Conglomerate (Sedimentary rock)

Amazonite

K(AlSi3O8) - Microcline variant

Granite (tumbled pebble)

Granite (Plutonic Igneous Rock)

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Quartz Vein / Milky Quartz

Silicon Dioxide (SiO2)

Quartz with mica and feldspar (Pegmatite fragment)

Granitic Pegmatite (composed mainly of SiO2 with KAlSi3O8)

Puddingstone (Jasper-Conglomerate)

Conglomerate (Silicon Dioxide, SiO2 with impurities)

Conglomerate

Conglomerate (clastic sedimentary rock)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within Sedimentary or Igneous Matrix

Sandstone

Arenite (SiO2 primarily)

Granite

Phaneritic plutonic rock (primarily Quartz, Feldspar, and Mica)

Banded Gneiss (with Quartz Vein)

Gneiss (Metamorphic rock of varying mineralogy)

Wishing Stone (Basalt or Mudstone with Quartz/Calcite Veins)

Hydrothermally veined Basalt (SiO2/CaCO3 intrusions)

Fuchsite in Quartz

K(Al,Cr)2(AlSi3O10)(OH)2 + SiO2

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic Extrusive volcanic rock)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Red Granite

Phaneritic Felsic Igneous Rock

Turquoise

Turquoise - CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)

Diorite

Diorite (Intermediate intrusive igneous rock)

Diorite

Diorite (Intermediate intrusive igneous rock)

Sodalite in Matrix (often called Blue Marble or Sodalite-Syenite)

Sodalite-bearing Syenite / Na8Al6Si6O24Cl2 (Sodalite component)

Granite

Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)

Banded Gneiss

Gneiss (high-grade metamorphic silicate rock)

Gneiss

Gneiss (high-grade metamorphic rock)

Amygdaloidal Basalt

Amygdaloidal Basalt (Host rock) with Quartz or Calcite amygdules

Granite (Fine-grained)

Phaneritic Felsic Igneous Rock

Granite

Granite (Felsic Plutonic Rock)

Quartz (Quartzite)

Silicon Dioxide (SiO2)

Smoky Quartz

SiO2 (Silicon Dioxide)