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Sample Type is Mineral › Silicates › Cyclosilicates

46 records | Download
IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD02ZUS0 Tourmaline Tourmaline var. Rubellite in Lepidolite California 0 Ritter 154, 5 A
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
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