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IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD032LS0 Tourmaline Tourmaline var. Schorl, two pieces of Schorl on Quartz, Schorl exhibited as short, stubby, subhedral to euhedral crystals. Schorl not exhibiting typical prismatic crystal form. New York 0 Ritter 154, 5 A
GRD032MS0 Cyclosilicates Vein showing Neptunite and Natrolite. Treated with acid to remove carbonate mineralization. California 0 Ritter 154, 11 C
GRD032NS0 Phylllosilicates California 0 Ritter 154, 11 C
GRD032OS0 Benitoite California 0 Ritter 154, 5 A
GRD032PS0 Beryl Green Beryl on Feldspar and Smoky Quartz. Canada 0 Ritter 154, 5 A
GRD032QS0 Tourmaline Collection of fragments of Tourmaline prisms, variable sizes. California 0 Ritter 154, 5 A
GRD032RS0 Tourmaline Small Tourmaline prisms California 0 Ritter 154, 5 A
GRD032SS0 Tourmaline Tourmaline var. Elbaite. Collected August 1968 Little 3 Mine, Ramona, San Diego County, California 0 Ritter 154, 5 A
GRD032TS0 Axinite Hand sized sample Mexico 0 Ritter 154, 5 A
GRD032US0 Axinite Axinite with Prehnite Mexico 0 Ritter 154, 5 A
GRD032VS0 Tourmaline Tourmaline var. Schorl with Muscovite, Quartz, Plag. Two samples one with a cut face Unknown 0 Ritter 154, 5 A
GRD032WS0 Cyclosilicates Schorl or Black Beryl in pegmatite Unknown 0 Ritter 154, 5 A
GRD032XS0 Beryl Euhedral Beryl on Quartz with Phlogopite books. Excellent sample California 0 Ritter 154, 5 A
GRD032YS0 Beryl Single fragment of a Beryl crystal, no developed crystal faces. Unknown 0 Ritter 154, 5 A
GRD032ZS0 Tourmaline Tourmaline var. Schorl. Euhedral to subhedral Schorl on Quartz. California 0 Ritter 154, 5 A
GRD0330S0 Tourmaline Tourmaline var. Rubellite on Quartz. California 0 Ritter 154, 5 A
GRD0331S0 Beryl Six varicolored Beryl fragments, 2 of which are prismatic. Brazil 0 Ritter 154, 5 A
GRD0332S0 Beryl Beryl var. Emerald. Approximately 10 fragments of Emerald Prisms North Carolina 0 Ritter 154, 5 A
GRD0333S0 Beryl Two fragments of Beryl, no developed crystal faces. New Hampshire 0 Ritter 154, 5 A
GRD0334S0 Tourmaline Tourmaline var. Schorl fragments of Schorl prisms, Burminco Bulk. Approximately 10 pieces. South Dakota 0 Ritter 154, 5 A
GRD0335S0 Tourmaline Tourmaline var. Schorl on Quartz. Schorl exhibited as columnar aggregates of small prisms. California 0 Ritter 154, 5 A
GRD0336S0 Tourmaline Tourmaline var. Schorl with Muscovite and Quartz. This black prism was altered to white mica by later hydrothermal solutions. California 0 Ritter 154, 5 A
GRD0337S0 Beryl Bulk Beryl, anhedral to subhedral unimpressive samples. South Dakota 0 Ritter 154, 5 A
GRD0338S0 Cordierite Cordierite with Chalcopyrite, from UCLA mineral collection. Unknown 0 Ritter 154, 5 A
GRD0339S0 Tourmaline Tourmaline var. Dravite. Approx 5 small fragments, anhedral pieces of Dravite no well formed crystal faces. Many pieces have been cut. Sri Lanka 0 Ritter 154, 5 A
GRD033AS0 Tourmaline Tourmaline var. Schorl, with Quartz, Plagioclase, and Muscovite. From UCLA mineral collection. 0 Ritter 154, 5 A
GRD033BS0 Tourmaline Approximately 20 varicolored pieces of Tourmaline. Schorl, Dravite, Watermelon, Rubellite varieties included. Various Sources 0 Ritter 154, 5 A
GRD033CS0 Cordierite Cordierite var. Iolite. 2 cut pieces of Iolite. Connecticut 0 Ritter 154, 5 A
GRD033DS0 Tourmaline Tourmaline var. Schorl on Monazite. Czech Republic 0 Ritter 154, 5 A
GRD033ES0 Tourmaline Tourmaline var. Schorl. Prismatic euhedral to subhedral tourmaline, 4 prisms. California 0 Ritter 154, 5 A