Sample Type is Mineral › Silicates › Phylllosilicates › Mica group
27 records | Download| IGSN | Sample Type | Notes | Location | Number Thin Sections | Storage Location |
|---|---|---|---|---|---|
| GRD02ZCS0 | Glauconite | Box of treated Glauconite from Bonne Terre Limestone, mostly very fine but with some granules. May have residual dolomite or quartz. Sample attained by M. N. Bramlette through communication with a USGS representative whom attained the material from a representative from the Saint Joseph Lead Company. | Missouri | 0 | Ritter 154, 11 C |
| GRD02ZYS0 | Biotite | Biotite on Microcline | Unknown | 0 | Ritter 154, 11 C |
| GRD0301S0 | Lepidolite | Massive sample of granular Lepidolite | South Dakota | 0 | Ritter 154, 11 C |
| GRD0303S0 | Lepidolite | Two samples of granular Lepidolite. Smaller sample is nearly all Lepidolite. Larger sample is approximately half Lepidolite, other half of sample massive light blue/green material. | California | 0 | Ritter 154, 11 D |
| GRD0304S0 | Lepidolite | Lepidolite bounded by Spodumene | Unknown | 0 | Ritter 154, 11 D |
| GRD0306S0 | Glauconite | Vial of Glauconitic sand | California | 0 | Ritter 154, 11 D |
| GRD0307S0 | Muscovite | Approximately 25 mica sheets, about 4 to 5 cm squared in size. | Maine | 0 | Ritter 154, 11 D |
| GRD0308S0 | Biotite | Approximately 5 Biotite books about 1 mm thick each, each sample about 1 to 1.5 square inches in size. Burminco Bulk | Canada | 0 | Ritter 154, 11 D |
| GRD030AS0 | Lepidolite | Small sample, Lepidolite encapsulates what seems to be a small Schorl prism. | California | 0 | Ritter 154, 11 D |
| GRD030DS0 | Biotite | Biotite on Quartz and Plag. Large sheets cover entirety of three planar surfaces of sample. Unidentified mineral inclusions in biotite. | California | 0 | Ritter 154, 11 D |
| GRD030FS0 | Biotite | Approx. 20 biotite sheets | Canada | 0 | Ritter 154, 11 D |
| GRD030LS0 | Lepidolite | Four pieces of Lepidolite. | California | 0 | Ritter 154, 11 D |
| GRD030MS0 | Muscovite | Two Muscovite books approx. 1 cm thick. | California | 0 | Ritter 154, 11 D |
| GRD030OS0 | Glauconite | Vial of Glauconitic sand | Mexico | 0 | Ritter 154, 11 D |
| GRD030QS0 | Glauconite | Vial of Glauconitic sand | Mexico | 0 | Ritter 154, 11 D |
| GRD030RS0 | Lepidolite | Granular lepidolite with patches of other unidentified minerals. | Unknown | 0 | Ritter 154, 11 C |
| GRD030YS0 | Muscovite | Four Muscovite books approx. 0.5 cm thick and approx. 10 Muscovite sheets. | Unknown | 0 | Ritter 154, 11 D |
| GRD0311S0 | Glauconite | Vial of Glauconitic sand | California | 0 | Ritter 154, 11 D |
| GRD0312S0 | Glauconite | Vial of Glauconitic sand | Mexico | 0 | Ritter 154, 11 D |
| GRD03KUS0 | Muscovite | Muscovite var. Star Muscovite | Brazil | 0 | Vaughan 146, 40 G |
| GRD03KVS0 | Muscovite | Muscovite var. Star Muscovite | Brazil | 0 | Vaughan 146, 40 G |
| GRD03KZS0 | Muscovite | Brazil | 0 | Vaughan 146, 40 G | |
| GRD03L2S0 | Muscovite | Muscovite var. Golden Muscovite | Brazil | 0 | Vaughan 146, 40 G |
| GRD03L6S0 | Lepidolite | Maine | 0 | Vaughan 146, 40 G | |
| GRD03L8S0 | Muscovite | Brazil | 0 | Vaughan 146, 40 G | |
| GRD03L9S0 | Muscovite | Brazil | 0 | Vaughan 146, 40 G | |
| GRD03LAS0 | Muscovite | Brazil | 0 | Vaughan 146, 40 G |