Igneous And Mineral

Ruby (set in a gold pendant)

Ruby (Variety of Corundum, Al2O3)

Vesicular Basalt with Secondary Mineral Inclusions

Aphanitic Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Granite Pebble

Granite (Phaneritic intrusive igneous rock)

Milky Quartz (Water-worn pebble/nodule)

Quartz (Silicon Dioxide - SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Granite

Granite (a plutonic igneous rock composed of quartz, feldspar, and mica)

Basalt with Calcite Veins

Aphanitic mafic volcanic rock with CaCO3 inclusions

Amethyst (Polished/Carved Crystal)

Silicon Dioxide (SiO2) with trace Iron (Fe)

Pegmatite (Granitic) with Tourmaline

Granitic Pegmatite (containing Schorl and Quartz)

Granite

Granite (High-silica plutonic rock)

Basalt with Plagioclase Phenocrysts (Porphyritic Basalt)

Porphyritic Basalt (Mafic volcanic rock)

Epidote in Matrix (Dragon Stone variant)

Epidote with Quartz/Feldspar (Ca2(Al,Fe)3(SiO4)3(OH))

Granite

Phaneritic Felsic Igneous Rock

Granite

Phaneritic plutonic rock (Quartz, Alkali Feldspar, and Plagioclase)

Granite

Granite (composed primarily of Quartz SiO2, Alkali Feldspar KAlSi3O8, and Plagioclase)

Quartz

Quartz (SiO2 - Silicon Dioxide)

Thunderegg (specifically a Jasper/Agate-filled Geode nodule)

Silicon Dioxide (SiO2) within Rhyolitic Matrix

Quartz

SiO₂ (Silicon Dioxide)

Fluorite

Fluorite (Calcium Fluoride, CaF2)

Granite

Phaneritic Plutonic Felsic Rock

Granite

Granite (a felsic intrusive igneous rock composed primarily of quartz, feldspar, and mica)

Jasper in Basalt Matrix

Silicon Dioxide (SiO2) with impurities; Chalcedony

Quartz (Milky/Iron-stained)

Silicon Dioxide (SiO2)

Corundum (Sapphire/Ruby in Matrix)

Corundum (Al2O3)

Granite

Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)

Obsidian

Obsidian (Volcanic Glass, complex silicate)

Moonstone

Adularia / Orthoclase (KAlSi3O8)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Granite Cobble (River Stone)

Felsic intrusive igneous rock (composition: Quartz, Feldspar, Mica)

Pink Granite

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

Granite

Plutonic Igneous Rock (composed primarily of Quartz, Feldspar, and Mica)

Pink Granite

Granite (Alkali-feldspar granite)

Granite

Phaneritic plutonic rock (approx. 20-60% quartz, 35-90% feldspar)

Amazonite

K(AlSi3O8) - Lead-bearing Microcline (Tectosilicate)

Gneiss

Gneiss (High-grade metamorphic rock)

Granite

Granite (Felsic Plutonic Rock)

Mica-rich Schist fragment

Mica Schist