Sedimentary Or Igneous Associated Mineral

Red Jasper

Silicon Dioxide (Microcrystalline Quartz), SiO2

Green Schist

Greenschist (composed of chlorite, epidote, and actinolite)

Polished septarian nodule cabochon

Septarian calcite–aragonite nodule, commonly in a clay-rich limestone/marl matrix

Greenstone (Altered Mafic Rock)

Greenschist / Meta-basalt

Greenstone

Metabasalt (Greenstone Facies)

Polished bloodstone (heliotrope), probable

Chalcedony (microcrystalline quartz, SiO₂) with iron-oxide inclusions

Gold Ore

Native Gold (Au)

Quartz-rich veined rock, likely milky quartz with feldspar or calcite

Quartz (SiO₂), possibly in a quartz–feldspar or quartz–calcite vein

Quartz on Matrix

Silicon Dioxide (SiO2)

Yellow Calcite

Calcium Carbonate (CaCO3)

Petrified Wood

Silicified wood / Permineralized wood (SiO2)

Banded iron formation fragment

BIF: microcrystalline quartz (chert/jasper) with iron oxides and/or magnetite

Honey Calcite

Calcium Carbonate (CaCO3)

Weathered copper-bearing rock, likely cuprite-bearing basalt or gossan

Probable cuprite (Cu₂O) and copper-carbonate minerals in an iron-rich silicate matrix; exact identification requires testing

Green Jasper

Microcrystalline Quartz (Chalcedony), SiO2

Quartz-rich pegmatite, with probable feldspar and mica

Granite/pegmatite assemblage: quartz (SiO₂), feldspar (KAlSi₃O₈–NaAlSi₃O₈–CaAl₂Si₂O₈), and mica

Likely tumbled yellow jasper or iron-rich chert

Microcrystalline quartz (SiO₂), colored by iron oxides

Rhodonite

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

Tumbled brown-and-black stone, likely mahogany obsidian

Volcanic glass; predominantly rhyolitic obsidian, SiO₂-rich

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Greenstone

Greenschist (commonly containing Chlorite, Actinolite, and Epidote)

Red Quartz (Druzy)

Silicon Dioxide (SiO2) with Hematite inclusions

Iron-rich sandstone or limonite/goethite concretion

Ferruginous sandstone with limonite–goethite (hydrated iron oxides), possibly a weathered ironstone concretion

Peach Moonstone

Moonstone (KAlSi3O8)

Lapis Lazuli

Na8(Al6Si6O24)S2 (composed primarily of Lazurite, Calcite, and Pyrite)

Tumbled carnelian (likely orange chalcedony)

Carnelian, a cryptocrystalline variety of quartz; SiO₂, commonly colored by iron oxides

Malachite

Copper(II) carbonate hydroxide [Cu2CO3(OH)2]

Milky quartz fragments

Quartz (silicon dioxide, SiO₂)

Yellow-brown jasper (likely iron-stained chert)

Microcrystalline quartz (SiO₂), varieties of chalcedony/chert colored by iron oxides

Quartz (likely a macrocrystalline variety like milky quartz or smoky quartz, given the appearance in the image)

Quartz (SiO₂ - Silicon Dioxide)

Tumbled Dalmatian jasper

Quartz-rich alkali rhyolite, commonly marketed as Dalmatian jasper; chiefly quartz, feldspar, and dark amphibole/biotite inclusions

Polished black obsidian

Volcanic glass, chiefly SiO₂

Lapis Lazuli

Rock composed mainly of lazurite ((Na,Ca)8(AlSiO4)6(SO4,S,Cl)2), calcite, and pyrite

Banded metamorphic river cobble, likely gneiss or metasedimentary rock

Quartz–feldspar–mica gneiss or quartzite with cross-cutting quartz veins

Smoky quartz crystal

Quartz, silicon dioxide (SiO₂), brown variety colored by irradiation and trace aluminum

Jasper (specifically Red Jasper)

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper Breccia

Silicon Dioxide (SiO2) - Brecciated Microcrystalline Quartz

Quartz–mica metamorphic rock, likely schist

Quartz–muscovite/biotite schist; predominantly SiO₂ quartz with phyllosilicate micas

Greenstone / Greenstone Pebble

Greenschist (metamorphosed basalt or gabbro)

Greenstone

Chlorite schist / Meta-basalt

Turquoise

Turquoise - CuAl6(PO4)4(OH)8·4H2O

Celadonite in Amygdaloidal Basalt

K(Mg,Fe2+)(Fe3+,Al)Si4O10(OH)2 (Celadonite mineral) within a Basalt matrix