Metamorphic (Altered Igneous Rock)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Greenstone (likely altered basalt or serpentinite)

Chlorite-rich metabasalt or serpentinite; exact identification requires testing

Epidote in Matrix (Dragon Stone variant)

Epidote with Quartz/Feldspar (Ca2(Al,Fe)3(SiO4)3(OH))

Greenstone pebble (likely serpentinite or altered basalt)

Serpentinite, predominantly serpentine-group minerals; exact identification requires testing

Likely serpentinite (serpentine-rich rock)

Serpentine-group minerals, chiefly antigorite/lizardite; commonly derived from ultramafic peridotite

Unakite

Altered Granite (Epidotized Granite)

Tumbled greenstone-like pebble

Likely serpentine or chlorite-rich metamorphic rock; exact identification requires testing

Epidote with Unakite characteristics

{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)

Unakite

Altered Granite (Epidotized Granite)

Unakite

Altered Granite (Epidotized Granite)

Leopard jasper (orbicular jasper)

Silicified volcanic rock, chiefly microcrystalline quartz/chalcedony (SiO₂) with feldspar and iron-oxide inclusions

Lapis Lazuli

Lapis Lazuli (Complex aggregate of Lazurite, Calcite, and Pyrite)

Lapis Lazuli

Lazurite-dominated contact metamorphic rock

Unakite

Granitic rock composed of pink orthoclase feldspar, green epidote, and clear quartz

Serpentine

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

Unakite

Altered Granite (Granitic Metamorphic Rock)

Unakite

Altered Granite (Granitic Metamorphic Rock)

Unakite

Altered Granite (Granitic Metamorphic Rock)

Sodalite

Sodalite (Na8Al6Si6O24Cl2)

Lapis Lazuli (in Matrix)

Lazurite-bearing Metamorphic Rock (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2

Likely tumbled lepidolite-bearing mica schist

Lepidolite-rich mica schist; chiefly lepidolite/muscovite mica, quartz, and possibly feldspar

Sodalite

Na8(Al6Si6O24)Cl2

Unakite

Altered Granite (Epidotized Granite)

Quartz-veined weathered host rock

Quartz (SiO₂) in a likely altered limestone or metamorphic carbonate host

Unakite

Altered Granite (Epidotized Feldspar with Quartz)

Greenstone

Metamorphosed Mafic Igneous Rock

Lapis Lazuli

Lapis Lazuli (Complex aggregate including Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Likely weathered basalt or dark metamorphic rock

Fine-grained mafic rock, probably basalt (plagioclase + pyroxene ± olivine)

Unakite

Altered Granite (Granitic Metamorphic Rock)

Unakite

Altered Granite (Granitic Metamorphic Rock)

Likely weathered basalt or andesite fragment

Fine-grained volcanic rock, likely basaltic-andesite; exact identification requires testing

Unakite

Unakite (metamorphosed granite)

Epidote in Matrix (Unakite-related)

Epidosite (Ca2(Al,Fe)3(SiO4)3(OH))

Unakite

Altered Granite (Epidotized Granite)

Weathered foliated metamorphic rock, likely schist or gneiss

Micaceous schist/gneiss; composition likely quartz, feldspar, mica, and altered mafic minerals

Unakite

Altered Granite (Epidote, Orthoclase Feldspar, Quartz)

Unakite

Unakite (Epidotized Granite)

Banded gneiss (likely biotite-bearing)

Gneiss; quartz–feldspar–mica assemblage, with possible iron-oxide staining

Tumbled brown river stone

Likely weathered iron-rich basalt, greenstone, or other mafic metamorphic rock; exact identification requires testing

Unakite

Altered Granite (Epidotized Granite)

Epidote

Epidote - {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)

Rhodonite

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