Mineral (Man Made Aura Treatment)

Green Fluorite

Calcium Fluoride (CaF2)

Mixed Mineral Specimens

Mixed Silicates, Oxides, and Phosphates (SiO₂, Ca₅(PO₄)₃(F,Cl,OH), Na₈Al₆Si₆O₂₄Cl₂, etc.)

Quartz

Silicon Dioxide (SiO2)

Schist

Mica Schist (Quartz-Muscovite-Biotite Schist)

Quartz with Iron Stains

Quartz (SiO2) with iron oxide/hydroxide staining

Gneiss

Gneiss (pronounced 'nice')

Granite

Granite (Felsic intrusive igneous rock)

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2)

Wonderstone (Sandstone)

Silicified Quartz Sandstone with Iron Oxide staining

Banded Iron Formation

Banded Iron Formation (BIF)

Pegmatite with Schorl (Black Tourmaline) and Mica

Pegmatite (complex association of NaAlSi3O8, NaFe3Al6(BO3)3Si6O18(OH)4, and KAl2(AlSi3O10)(OH,F)2)

Chrysoprase

Chrysoprase (a variety of Chalcedony, SiO₂)

Fluorite

Calcium Fluoride (CaF2)

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Granite (Weathered)

Phaneritic Felsic Igneous Rock

Red Jasper

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

Ferruginous Sandstone

Clastic sedimentary rock (primarily Quartz with Iron Oxide cement)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Granite

Phaneritic Felsic Igneous Rock (Granite)

Gneiss

Gneissic Metamorphic Rock

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Peridot (Olivine)

Olivine, (Mg,Fe)2SiO4

Quartz (likely) / Siliceous rock with quartz phenocrysts (if a rock fragment)

Quartz (SiO₂)

Quartz

Silicon Dioxide (SiO2)

River/Stream Pebble

Clast / Detrital Grain / Rounded Sedimentary Particle (Compositionally variable, commonly Quartz, Feldspar, Chert, or other resistant rock fragments)

Quartz

Quartz (SiO2 - Silicon Dioxide)

Obsidian with Spherulitic Devitrification (Snowflake Obsidian/Mahogany related)

Volcanic Glass (70% or more SiO2)

Marble

Recrystallized Calcite / Dolomite (CaCO3)

Conglomerate

Conglomerate

Green Apophyllite and Stilbite on Quartz Cluster

Apophyllite-(K) (KCa4(Si8O20)(F,OH)·8H2O), Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O), Quartz (SiO2)

Green Calcite

Calcium Carbonate (CaCO3)

Sandstone (with manganese staining)

Clastic sedimentary rock (primarily SiO2)

Marble

Recrystallized Calcite (CaCO3)

Feldspar Rich Granite with Limonite Staining

K-Feldspar Granite (KAlSi3O8)

Quartz

Quartz (SiO2 - Silicon Dioxide)

Amygdaloidal Rhyolite (often called Lake Superior Agate relative)

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

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Coquina

Bioclastic Limestone (composed primarily of CaCO3)

Jasper (yellow/cream variety)

SiO₂ (Cryptocrystalline Quartz)

Chert (specifically White Chert or Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert Pebble (Jasper variant)

Microcrystalline Quartz (SiO2)

Greywacke (River Slikkenstone)

Greywacke (Impure Sandstone)