Sedimentary Or Igneous Associated Mineral

Quartz with Pyrite

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)

Auriferous Quartz or Pyritic Ore

Iron Pyrite (FeS2) or Native Gold (Au) in Matrix

Gneiss (with Quartz and Mica)

Gneiss

Orca Agate

Chalcedony (SiO2) with various inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Chrysocolla on Matrix

Hydrated copper silicates ((Cu,Al)2H2Si2O5(OH)4·nH2O)

Weathered quartz-bearing metamorphic rock

Likely quartz–feldspar schist or gneiss, possibly with iron-oxide alteration

Milky quartz vein fragment (likely quartz with minor feldspar/mica)

Quartz, SiO₂; possibly associated feldspar and mica

Black Obsidian

Amorphous volcanic glass (SiO2)

Serpentinite

Serpentinite (Hydrated magnesium iron phyllosilicate)

Galena

Lead sulfide (PbS)

Raw garnet-rich metamorphic rock

Likely garnet-bearing schist or garnetite; garnet-group silicates, commonly almandine (Fe₃Al₂Si₃O₁₂)

Greenstone

Protolith of basalt/gabbro (chlorite-epidote metamorphic facies)

Gabbro

Gabbro (mafic intrusive rock)

Chalcedony (Agate/Carnelian variant)

Silicon Dioxide (SiO2)

Blue Calcite

Calcium Carbonate (CaCO3)

Celestine (Celestite)

Celestine (Strontium Sulfate, SrSO4)

Blue Chalcedony

Cryptocrystalline Quartz (SiO2)

Lepidolite with Quartz

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

Moonstone (specifically White Moonstone/Adularia)

Potassium aluminum silicate ((K,Na)AlSi3O8)

Epidosite

Epidosite (consisting primarily of Epidote Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH) and Quartz SiO2)

Milky Quartz with Inclusions

Quartz (Silicon Dioxide, SiO2)

Jasper

Microcrystalline Quartz (SiO2)

Chert (likely chalcedony-rich flint)

Microcrystalline quartz, SiO₂ (quartz/chalcedony)

Yellow Quartz

Silicon Dioxide (SiO2)

Basalt

Extrusive Igneous Rock

Weathered iron-rich concretion

Goethite–hematite limonite concretion, likely with quartz and clay minerals

Quartz-rich pegmatite with green mica or chlorite

Granitic pegmatite; chiefly quartz (SiO₂), with feldspar and probable muscovite/chlorite

Tumbled amazonite (likely)

Amazonite, green microcline feldspar (KAlSi₃O₈)

Bloodstone

Chalcedony (Variety: Bloodstone / Heliotrope), SiO2

Fluorite

Calcium Fluoride (CaF2)

Pink Opal

Hydrated Silica (SiO2·nH2O)

Jasper

Silicon Dioxide (SiO2) with impurities

Turquoise

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

Rhodonite

Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3

Pegmatite

Igneous Pegmatite (Quartz, Feldspar, Micas)

Poppy Jasper

Silicon Dioxide (SiO2) with Hematite and Iron Oxide inclusions

Orange Calcite

Calcium Carbonate (CaCO3)

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Unakite or Epidosite

Epidosite (Mineral composition: Epidote, Feldspar, and Quartz)

Green Jasper

Microcrystalline Quartz (SiO2)

Howlite

Howlite, Ca₂B₅SiO₉(OH)₅