Mineral Side Rock

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)

Red Jasper (Brecciated Jasper)

SiO2 (Silicon Dioxide) with Ferric Iron inclusions

Epidote and Quartz in Basalt

Epidote [Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)] in Metabasalt

Conglomeratic Sandstone

Clastic Sedimentary Rock

Granite

Granite

Raw Diamond (Rough Uncut)

Diamond (C - pure carbon)

Agate (Puddingstone style)

Silicon Dioxide (SiO2) with impurities

Lake Superior Agate

Banded Chalcedony (Silicon Dioxide / SiO2)

Amethyst Quartz

Amethyst (Silicon Dioxide, SiO2)

Quartz (Agate/Chalcedony variety)

Silicon Dioxide (SiO2)

Vesicular Sandstone

Clastic Sedimentary Rock (Sandstone)

Desert Rose

Gypsum (variety Selenite) or Barite, CaSO4·2H2O

Quartz Geode

Silicon Dioxide (SiO2)

Clear Quartz (Tumbled)

Silicon Dioxide (SiO2)

Wishing Stone (Basalt/Greywacke with Quartz Vein)

Basalt or Siltstone with SiO2 (Quartz) hydrothermal intrusion

Gneiss

High-grade Metamorphic Gneiss

Quartz Geode

Silicon Dioxide (SiO2)

Quartz Geode

Silicon Dioxide (SiO2)

Gneiss (Metamorphic Rock)

Gneiss (variable mineral formula primarily containing Quartz, Feldspar, and Mica)

Gneiss

High-grade Metamorphic Gneiss

Chert (Green and Black Jasper variant)

Cryptocrystalline Quartz (SiO2)

Basalt with Quartz/Calcite Inclusion

Aphanitic Mafic Igneous Rock (Basalt) with SiO2 or CaCO3 vein

Serpentinite (Serpentine Rock)

Primarily composed of serpentine group minerals, such as antigorite, chrysotile, and lizardite. Chemical formula for serpentine minerals is (Mg,Fe)3Si2O5(OH)4.

Agate

Silicon Dioxide (SiO2)

Satin Spar Selenite

Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O

Quartz Geode / Druzy Quartz

Silicon Dioxide (SiO2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Dyed Blue Agate

Silicon Dioxide (SiO2)

Moss Agate

Silicon Dioxide with inclusions (SiO2 + Fe/Mg/Mn/Chlorite)

Satin Spar (Selenite)

Gypsum (CaSO4·2H2O)

Granite Pebble

Granite (composition of Quartz, Alkali Feldspar, and Plagioclase)

Pegmatite

Granitic Pegmatite

Quartz pebble with host matrix

Silicon Dioxide (SiO2)

Colorless Quartz (Rhinestone)

Silicon Dioxide (SiO2)

Diorite (possibly fine-grained variety or a related intermediate intrusive rock like a felsic gabbro or a dark granodiorite)

Diorite (Igneous rock, intrusive, intermediate composition)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Halite

Halite (Sodium Chloride, NaCl)

Quartz (Milky or Cloudy Quartz)

Silicon Dioxide (SiO2)

Desert Rose (also known as Sand Rose)

Gypsum (CaSO4·2H2O) or Barite (BaSO4) with sand inclusions

Halite

Halite (Sodium Chloride, NaCl)

Quartz with Iron Staining

Silicon Dioxide (SiO2) with iron oxide impurities