Sedimentary (If Natural Jasper) Or Artificial (If Slag)

Gold and Cubic Zirconia (San Judas Tadeo Pendant)

Native Gold (Au) with Synthetic Cubic Zirconia (ZrO2)

Lapis Lazuli

Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Orange Quartzite (River Pebble)

Quartzite (SiO2 with iron oxide inclusions)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within Matrix

Dendritic Agate or Spotted Quartzite

Silicon Dioxide (SiO2) with inclusions

White Topaz

Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)

Quartz Pebble

Silicon Dioxide (SiO2)

Mica Schist

Foliated Metamorphic Rock (Schist)

Brown Quartzite Pebble

Metadiagenetic Quartzite (primarily SiO2)

Schist

Mica Schist

Chalcopyrite in Matrix

Chalcopyrite (CuFeS2)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Iron-stained Quartz

Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3/FeO(OH))

Peridotite (Pyroxenite/Serpentinized Dunite)

Ultramafic Rock (consisting primarily of Olivine and Pyroxene)

Quartzite

Quartzite (primarily SiO2)

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Quartzite with inclusions

Metamorphosed Quartz-rich Rock (SiO2)

Pink Quartzite

Quartzite (SiO2 with minor iron oxide impurities)

Bloodstone / Heliotrope

Silicon dioxide (SiO2) with inclusions

Agate

Silicon dioxide (SiO2)

Porphyritic Rhyolite

Rhyolite (Porphyritic texture)

Massive Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Tiger's Eye

Pseudomorph of Crocidolite (SiO2 with iron oxides)

Aragonite (Botryoidal/Coralloidal variety)

Aragonite (CaCO3)

Rose Quartz

Quartz (Silicon Dioxide, SiO2)

Geode (unopened)

SiO2 - Chert-shelled concretion (mostly Quartz)

Pegmatitic Granite

Granite (Alkali-feldspar granite) with Quartz and Orthoclase

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Sunstone (Heliolite)

Plagioclase Feldspar ((Ca,Na)(Al,Si)4O8)

Tiger's Eye

Pseudomorph of quartz after crocidolite (SiO2 with iron inclusions)

Vesicular Basalt (Scoria)

Vesicular Basalt

Quartz with Iron Staining

Silicon Dioxide (SiO2) with Hematite inclusions

Quartzite

Quartzite (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Chrysocolla in Quartz (Quantum Quattro variant)

Hydrated copper silicates (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) often mixed with SiO2

Quartzite

Quartzite (primarily SiO2)

Granite with Mafic Inclusions

Granite (Phaneritic igneous rock composed of Quartz, Feldspar, and Mica)

Chrysocolla in Matrix

Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)

Rose Quartz with possible Manganese or Iron inclusions

SiO2 (Silicon Dioxide)

Arsenic (Native)

Arsenic (As)

Amber

Fossilized tree resin (not a true mineral as it is organic and amorphous); Chemical formula is highly variable, but often approximated as C10H16O.

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)