Metamorphic Or Igneous (Context Dependent)

Quartz Geode/Cluster

Quartz (SiO2)

Calcite

Calcite (CaCO₃)

igneous/metamorphic mineral specimen

Quartz with Mica/Chlorite inclusions

Silicon Dioxide (SiO2) with phyllosilicate inclusions

Lapis Lazuli (Tumbled)

Lazurite-dominated contact metamorphic rock

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Orange Calcite (likely polished specimen)

Calcite

Quartz (on matrix)

Quartz (Silicon Dioxide, SiO₂)

Orthoclase Feldspar (or K-Feldspar)

Orthoclase (KAlSi3O8)

Metamorphic rock (for Nephrite and some Jadeite); Mineral (for Jadeite)

Jade (likely Nephrite or Jadeite)

Nephrite (a variety of actinolite, Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)

Quartz (likely Yellow/Orange variety, possibly Citrine or Chalcedony with iron staining)

Quartz (SiO₂)

Quartz (milky quartz variety)

Quartz (SiO₂)

Sunstone

Plagioclase Feldspar (specifically Oligoclase variety containing hematite or goethite inclusions)", composition: (Ca,Na)(Al,Si)2Si2O8

Rhodonite

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

Rhodonite

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

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn+2,Fe+2,Mg,Ca)SiO3

Quartz (likely macrocrystalline variety)

Quartz (SiO₂)

Mixed (Igneous, Sedimentary, Metamorphic, and Minerals)

Banded Gneiss

Gneiss (pronounced "nice")

Metamorphic Rock

Mixed Tumbled Gemstones and River Rocks

Mixed Decorative Stones (predominantly Silicon Dioxide - SiO2 variants)

Quartz / Quartzite Fragment

Silicon Dioxide (SiO2)

igneous, sedimentary, or metamorphic (mineral-based)

Limonite (Iron Ore/Hydrated Iron Oxide)

Limonite (mixture of FeO(OH)·nH₂O minerals, mainly Goethite, FeO(OH) and Lepidocrocite, FeO(OH))

Ruby Fuchsite / Ruby in Fuchsite

Ruby (Al2O3 variety corundum) and Fuchsite (K(Al,Cr)2AlSi3O10(OH)2 - a chromium-rich variety of muscovite mica) in Quartz matrix

Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Green Aventurine

Silicon dioxide (SiO2) with inclusions of Fuchsite mica

Quartz (likely milky quartz or a stained variety)

Silicon Dioxide (SiO₂)

Marble

Marble (metamorphosed limestone/dolostone). Predominantly composed of Calcite (CaCO3) for marble derived from limestone, or Dolomite (CaMg(CO3)2) for marble derived from dolostone.

Metamorphic Rock

Smoky Quartz

SiO2 (Silicon Dioxide)

Aventurine (Green Aventurine)

Quartz with Fuchsite Inclusions (SiO2)

Pyrite

Pyrite (FeS2)

Garnet Schist

Almandine Garnet in Mica Schist (Fe3Al2(SiO4)3)

Mineral (Found in Igneous and Metamorphic rocks)

Mica (specimen appears to be Muscovite or Phlogopite)

Phyllosilicate mineral; Muscovite: KAl2(AlSi3O10)(F,OH)2

Sandstone or Quartzite

Arenite (if sedimentary) / Quartzite (if metamorphic)

Sedimentary or Metamorphic

Granite

Granite (a broadly defined plutonic igneous rock, often more specifically classified as quartz monzonite or granodiorite based on precise mineral percentages)

igneous

Green Aventurine

Aventurine (a variety of Quartz, SiO2)

Green Tourmaline

Elbaite (part of Tourmaline group), Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4

Fuchsite

Chromium-rich Muscovite (KAl2(AlSi3O10)(OH,F)2 with Cr replacements)

Jade

There are two distinct minerals commonly known as Jade: Nephrite (a calcium magnesium silicate - Ca2(Mg,Fe)5Si8O22(OH)2) and Jadeite (a sodium aluminum silicate - NaAlSi2O6). Based on the image showing a typically softer, more fibrous appearance, it is likely Nephrite.