Mineral Like Byproduct

Pink Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Red Sandstone

Arenite (with Iron Oxide / Hematite cementation)

Rose Quartz

Rose Quartz (SiO2 with traces of Ti, Fe, or Mn)

Gold in Quartz Matrix

Native Gold (Au) with Quartz (SiO2) and Slate/Shale

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Clear Quartz Cluster

Silicon Dioxide (SiO2)

Greenschist

Chlorite schist

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)

Petrified Wood

Silicified Wood (SiO2)

Nephrite Jade (or Serpentine)

Nephrite (a variety of amphibole mineral tremolite-actinolite) or Serpentine Group minerals

Chert (Grey Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Sandstone (likely Greywacke or Siltstone variety)

Arenite / Siltstone (primarily SiO2)

Sandstone (Fossiliferous)

Arenite / Clastic Sedimentary Rock

Geode (Quartz chalcedony variety)

SiO2 (Silicon Dioxide)

Petrified Wood

Silicified Wood (SiO2)

Agate (Chert/Chalcedony)

Silicon Dioxide (SiO2)

Amethyst (Tumbled Chips)

Amethyst (Silicon Dioxide with Iron impurities, SiO2)

Turquoise

Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O

Petrified Wood

Silicon Dioxide (SiO2) - Calcified / Silicified Wood

Banded Gneiss

Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Mica)

Sandstone (likely Siltstone or fine-grained Sandstone)

Sedimentary Rock (Clastic)

Sandstone (likely Arkosic or Quartzose)

Arenite (SiO2 based with mineral inclusions)

Sandstone (Weathered Cobble)

Clastic Sedimentary Rock (primarily SiO2)

Malachite

Malachite (Cu2CO3(OH)2)

Rutilated Prehnite

Prehnite - Ca2Al(AlSi3O10)(OH)2 with Epidote/Tourmaline inclusions

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz Crystal (specifically Rock Crystal)

Silicon Dioxide (SiO2)

Turquoise (Blue Howlite / Magnesite imitation)

CuAl6(PO4)4(OH)8·4H2O (for natural Turquoise); Ca2B5SiO9(OH)5 (for Howlite)

Jasper

Jasper (Silicon Dioxide, SiO2)

Quartz Geode

Silicon Dioxide (SiO2) within a geode

Chert (Arrowhead Fragment)

Microcrystalline Quartz (SiO2)

Chert (variations include Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Flowerstone

Porphyritic Basalt or Porphyritic Andesite

Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Greenschist (containing Epidote and Quartz)

Greenschist (Epidote-Chlorite-Actinolite Schist)

Chert (specifically Blue Chert or Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Vesicular Basalt (commonly mistaken for Slag)

Scoriaceous Basalt (composed primarily of Plagioclase Feldspar and Pyroxene)

Jasper with Hematite inclusions

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)

Nephrite Jade

Tremolite-Actinolite solid solution, Ca2(Mg,Fe)5Si8O22(OH)2

Olivine in Basalt matrix

Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)

Veined Pebble (likely a Quartz-Veined Pebble)

Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)