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Sample Type is Igneous

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IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD042ZS0 Igneous Structures olivine basalt or basanite with abundant ultramafic xenoliths, Leone Volcanics, likely from dike American Samoa 0 Ritter 154, 16 O
GRD0430S0 Andesite Plagioclase and Pyroxene bearing andesite. Mexico 2 Ritter 154, 16 A
GRD0431S0 Granite Coarse grained Granite South Carolina 2 Ritter 154, 3 D
GRD0432S0 Pyroxenite Excellent, fresh pyroxenite California 2 Ritter 154, 3 D
GRD0433S0 Andesite Hornblende Diorite Porphyry. Bull Mountain Bysmalith. Dynamited boulder from roadside Utah 2 Ritter 154, 16 B
GRD0433S1 Diorite Hornblende Diorite Porphyry. Bull Mountain Bysmalith. Dynamited boulder from roadside Utah 2 Ritter 154, 19 E
GRD0434S0 Andesite Hornblende Diorite Porphyry. Large euhedral hornblende. Float, Bull Creek. Utah 4 Ritter 154, 3 D
GRD0436S0 Monzonite Monzosyenite. Part of Sybille intrusion. Perthitic black K-spar, plagioclase, augite, orthopyroxene, inverted pigeonite, fayalitic olivine, and ilmenite. Dark K-spar color due to numerous oxide inclusions. Wyoming 0 Ritter 154, 15 E
GRD0437S0 Ankaramite Large pyroxene and olivine bearing sample Tahiti Iti, Vaitepiha Valley, French Polynesia, North side of Island 0 Ritter 154, 16 J
GRD0437S1 Ankaramite Large pyroxene and olivine bearing sample Tahiti Iti, Vaitepiha Valley, French Polynesia, North side of Island 0 Ritter 154, 20 G
GRD0438S0 Pyroxenite Stolzburg Ultramafic Complex. Orthopyroxenite. Two moderate sized samples of exceptional, fresh orthopyroxenite. South Africa 1 Ritter 154, 3 D
GRD0438S1 Pyroxenite Stolzburg Ultramafic Complex. Orthopyroxenite. Two moderate sized samples of exceptional, fresh orthopyroxenite. South Africa 1 Ritter 154, 16 R
GRD0439S0 Pyroxenite Stolzburg Ultramafic Complex. Orthopyroxenite. Large sample of exceptional, fresh orthopyroxenite. Lowest pyroxenite band in sequence South Africa 1 Ritter 154, 3 D
GRD0439S1 Pyroxenite Stolzburg Ultramafic Complex. Orthopyroxenite. Large sample of exceptional, fresh orthopyroxenite. Lowest pyroxenite band in sequence South Africa 1 Ritter 154, 16 L
GRD0439S2 Pyroxenite Stolzburg Ultramafic Complex. Orthopyroxenite. Large sample of exceptional, fresh orthopyroxenite. Lowest pyroxenite band in sequence South Africa 1 Ritter 154, 20 J
GRD043AS0 Andesite Hornblende Andesite Porphyry France 0 Ritter 154, 20 C
GRD043AS1 Andesite Hornblende Andesite Porphyry France 0 Ritter 154, 20 C
GRD043BS0 Picrite Rounded boulder of basaltic olivine porphyry, broken into multiple pieces France 0 Ritter 154, 16 J
GRD043BS1 Picrite Rounded boulder of basaltic olivine porphyry, broken into multiple pieces France 0 Ritter 154, 20 G
GRD043JS0 Ankaramite Hawaii 2 Ritter 154, 16 H
GRD043KS0 Ankaramite No hand sample, two thin sections stored in thin section only storage in RH 154 Hawaii 2 Ritter 154
GRD043LS0 Ankaramite No hand sample, three thin sections stored in Thin Section Only storage in RH 154 American Samoa 3 Ritter 154
GRD043MS0 Welded Ignimbrite Bishop Tuff. porphyritic, welded with quartz, plagioclase, and k-spar phenocrysts California 2 Ritter 154, 15 L
GRD043NS0 Granodiorite biotite and sphene rich granodiorite, quite fresh California 0 Ritter 154, 15 O
GRD043PS0 Diorite Winnipesaukee Tonalite, older material intruded by White Mtn Complex New Hampshire 0 Ritter 154, 29 E
GRD043PS1 Diorite Winnipesaukee Tonalite, older material intruded by White Mtn Complex New Hampshire 0 Ritter 154, 29 E
GRD043QS0 Granite Meredith Granite (also called Kinsman quartz monzonite of New Hampshire Series), older material intruded by White Mtn Complex New Hampshire 0 Ritter 154, 29 E
GRD043QS1 Granite Meredith Granite (also called Kinsman quartz monzonite of New Hampshire Series), older material intruded by White Mtn Complex New Hampshire 0 Ritter 154, 29 E
GRD043RS0 Syenite syenite dike, 20 feet thick, contact with Winnipesaukee quartz diorite; part of older material intruded by White Mtn Complex New Hampshire 0 Ritter 154, 29 E
GRD043RS1 Syenite syenite dike, 20 feet thick, contact with Winnipesaukee quartz diorite; part of older material intruded by White Mtn Complex New Hampshire 0 Ritter 154, 29 E