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Sample Type is Ore Deposits

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IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD002US0 Sedimentary Ore Deposits Hematite, magnetite, and a small amount of quartz and muscovite. Sulfide minerals. Nice sample. New York 0 Ritter 154, 14 Q
GRD020SS0 Sedimentary Ore Deposits Non-foliated. Moderately granoblastic. Medium- to coarse-grained. Fe-oxide (magnetite), quartz, feldspar, garnet (almandine). Original description: Gneissic, meta-limestone (Fe-SS), granulite facies; Qtz-bio-almandine-magnetite. New York 0 Ritter 154, 14 Q
GRD021KS0 Sedimentary Ore Deposits Irregular banding. Amphibole (dark greenish?), calcite/carbonate, greenish epidote (?)/idocrase, quartz/plagioclase; Fe-hydroxide stains. Vulcan mine - contact metamorphic deposit of magnetite and hematite in Paleozoic carbonates associated with Mesozoic intrusion. California 0 Ritter 154, 24 A
GRD02AQS0 Sedimentary Ore Deposits Magnetite and hematite (minor) with irregular veinlets and interstices of dolomite and quartz (trace). Contact metamorphic deposit of magnetite and hematite in Paleozoic carbonates associated with Mesozoic intrusion. California 0 Ritter 154, 14 Q
GRD02ARS0 Sedimentary Ore Deposits Magnetite and hematite (minor) with very small irregular veinlets and interstices of dolomite- quartz (trace). Some pyrite. Contact metamorphic deposit of magnetite and hematite in Paleozoic carbonates associated with Mesozoic intrusion. California 0 Ritter 154, 14 Q
GRD02ASS0 Sedimentary Ore Deposits Magnetite with interstital dolomite as well as a large, coarse-grained dolomite vein. Minor amount of pyrite. California 0 Ritter 154, 14 Q
GRD02ATS0 Magmatic Ore Deposits Large potassium feldspar crystals with interstital magnetite and quartz. 0 Ritter 154, 14 Q
GRD02AUS0 Metamorphic Ore Deposits Magnetite-potassium feldspar-biotite-quartz gneiss. 60% magnetite, 30% K-spar, 5% quartz, 5% biotite. New York 0 Ritter 154, 14 Q
GRD02AVS0 Metamorphic Ore Deposits Magnetite-garnet-quartz gniess New York 0 Ritter 154, 14 Q
GRD02AWS0 Metamorphic Ore Deposits Potassium feldspar-magnetite-quartz-pyrite (trace) gneiss. Hypidiomorphic granular texture. New York 1 Ritter 154, 14 Q
GRD02BMS0 Sedimentary Ore Deposits Fe-Mn mineralization in Devonian dolomite. New Mexico 0 Ritter 154, 24 K
GRD02BMS1 Sedimentary Ore Deposits Fe-Mn mineralization in Devonian dolomite. New Mexico 0 Ritter 154, 14 Q
GRD02BMS2 Sedimentary Ore Deposits Fe-Mn mineralization in Devonian dolomite. New Mexico 0 Ritter 154, 14 R
GRD02BMS3 Sedimentary Ore Deposits Fe-Mn mineralization in Devonian dolomite. New Mexico 0 Ritter 154, 24 K
GRD02SAS0 Ore Deposits Missouri 0 Ritter 154, 14 Q
GRD02SBS0 Ore Deposits Sybille Pit in Laramie North Complex 0 Ritter 154, 14 Q
GRD02SJS0 Ore Deposits Sybille Pit in Laramie North Complex 0 Ritter 154, 14 Q
GRD02SMS0 Sedimentary Ore Deposits New York 0 Ritter 154, 17 O
GRD02SSS0 Surficial Ore Deposits Gossan, Iron ore deposit. California 0 Ritter 154, 14 Q
GRD02TDS0 Hydrothermal Ore Deposits Gold ore. Vein/vug filling quartz with oxides, disseminated gold. South Africa 0 Ritter 154, 14 Q
GRD02XBS0 Sedimentary Ore Deposits Gold bearing conglomerate South Africa 0 Ritter 154, 14 R
GRD02XLS0 Hydrothermal Ore Deposits Gold ore. Gold-bearing quartz vein California 0 Ritter 154, 14 Q
GRD02XNS0 Surficial Ore Deposits Weathered/altered Iron oxide ore Unknown 0 Ritter 154, 14 Q
GRD03Z1S0 Hydrothermal Ore Deposits Bore Hole #9. Blew out in 1965, always under water. Plagioclase and quartz bearing hydrothermally altered sample. Not ore. New Zealand 1 Ritter 154, 14 O
GRD03ZBS0 Metamorphic Ore Deposits Balmat mine - LV 1012. Rich lead and zinc ore. Calcite, sphalerite, galena, chalcopyrie, minor smithsonite Illinois 0 Ritter 154, 14 Q
GRD047MS0 Ore Deposits Philippines 0 Camp Elliott
GRD04AES0 Ore Deposits Altered basalt. Philippines 0 Camp Elliott