Marble

Banded Calcite (known as Mexican Onyx or Calcite Alabaster)

Calcium Carbonate (CaCO3)

Banded Calcite (often sold as 'Green Onyx')

Calcite (Calcium Carbonate, CaCO3)

Limestone

Calcite (CaCO3)

Banded Calcite (often sold as 'Onyx')

Calcite (Calcium Carbonate, CaCO3)

Banded Calcite (Mexican Onyx)

Calcite (CaCO3)

Banded Calcite (often sold as Mexican Onyx)

Calcium Carbonate (CaCO3)

Banded Calcite (often commercially sold as 'Mexican Onyx' or 'Honey Onyx')

Calcite (Calcium Carbonate, CaCO3)

Banded Calcite (often commercially called Mexican Onyx)

Calcite (Calcium Carbonate, CaCO3)

Serpentine

Serpentine Group Minerals (e.g., Antigorite, Chrysotile, Lizardite)

Calcite

Calcite (CaCO₃, Calcium Carbonate)

Calcite

Calcite (CaCO 3)

Orange Calcite

Calcite (CaCO3)

Apatite

Apatite Group (e.g., Fluorapatite Ca5(PO4)3F, Chlorapatite Ca5(PO4)3Cl, Hydroxylapatite Ca5(PO4)3(OH))

Quartzite

Quartzite (primarily composed of SiO O₂)

Calcite

Calcite (Mineral, Calcium Carbonate - CaCO3)

Serpentine

Serpentinite (a rock composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite; general formula (Mg, Fe)3Si2O5(OH)4)

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite)

Calcite

Calcite (Calcium Carbonate, CaCO3)

Calcite (Banded Calcite / Onyx Marble)

Calcium Carbonate (CaCO3)

Iron-Oxide Concretion (Moqui Marble)

Goethite/Hematite Concretion (Fe2O3 / FeO(OH))

Ironstone Concretion (Moqui Marble type)

Ironstone Concretion (Fe2O3 with SiO2 core)

Diopside (likely Chromian Diopside)

Diopside, part of Clinopyroxene family of inosilicates. Chemical formula: CaMgSi2O6. The green variety is often Chromian Diopside due to chromium impurities.

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite (Na,Ca)₈[(S,Cl,SO₄,OH)₂|(Al₆Si₆O₂₄)], with varying amounts of Calcite, Pyrite, and Sodalite.)

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)

Calcite

Calcite (Mineral; CaCO₃)

Calcite

Calcite (CaCO₃)

Ironstone Concretion (Moqui Marble Type)

Goethite/Hematite-cemented Sandstone Concretion

Ironstone Concretion (Moqui Marble type)

Ferruginous Concretion (Fe2O3 / FeO(OH))

Moqui Marble (Iron-Oxide Concretion)

Iron Oxide Concretion (Fe2O3)

Moqui Marble (Iron Oxide Concretion)

Iron Oxide Concretion (primarily Limonite/Hematite around a Sandstone center)

Ironstone Concretion (Moqui Marble type)

Iron oxide concretion (Goethite/Hematite and Sandstone)

Sapphire

Corundum (Al2O3)

Lapis Lazuli

Lapis Lazuli (a rock type, not a single mineral, composed primarily of lazurite, calcite, and pyrite)

Drill Core Samples (Varied Lithology)

Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)

Brown Jasper (Likely)

Jasper (Cryptocrystalline Silicon Dioxide - SiO2)

Quartzite

Quartzite

Travertine (used in construction, not a 'specimen' in situ)

Travertine

Graphite

Graphite (C)

Calcite (commonly referred to as Orange Calcite or Honey Calcite given its color)

Calcite

Lapis Lazuli

Lapis Lazuli (a rock, not a single mineral; primary mineral is Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite, Sodalite, Calcite, and Pyrite)

Serpentine

Serpentinite (rock), Serpentine group minerals (e.g., Antigorite, Lizardite, Chrysotile)