Duke Geological Laboratory

Stone Ridge, NY

Dukelabs Thumbnail Mineral Collection Gallery

2003_Garnet var Essonite_WestRedding_CT_USA.JPG
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2023_Muscovite_TollgateMine_Middletown_CT_USA.JPG
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2025_Tourmaline_StricklandQuarry_Portlandt_CT_USA.JPG
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2026_Tourmaline_StricklandQuarry_Portlandt_CT_USA.JPG
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2068_Wolframite(after Scheelite)_Trumbull_CT_USA.JPG
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2088_Muscovite_TollgateMine_Middletown_CT_USA.JPG
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2089_Muscovite_TollgateMine_Middletown_CT_USA.JPG
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2091_Chlorophane_OldMinePark_Trumbull_CT_USA.JPG
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2092_Turquoise_NewgatePrison_Farmington_CT_USA.JPG
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2097_Garnet var Essonite_WestRedding_CT_USA.JPG
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2099_Columbite_HaleQuarry_Portlandt_CT_USA.JPG
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2109-1_Chalcocite_Bristol_CT_USA.JPG
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2109-2_Chalcocite_Bristol_CT_USA.JPG
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2126_Barite_Austinville_VA_USA.JPG
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2127_Barite_SantaEulalia_Mexico.JPG
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2129_Cerrusite_Tsumeb_SWAfrica.JPG
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2130_Quartz_MagnetCove_AR_USA.JPG
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2132_Ferberite_Panasquiera_Portugal.JPG
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2135_Muscovite_RugglesMine_Grafton_NH_USA.JPG
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2136a_Chalcocite_State Vein_Butte_MT.JPG
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2137_Marcasite_AnnaBeaverMine_Tri-StateDist.JPG
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© 2025 Charles Merguerian