Sample Type is Metamorphic › Foliated › Schistose › Schist
119 records | Download| IGSN | Sample Type | Notes | Location | Number Thin Sections | Storage Location |
|---|---|---|---|---|---|
| GRD01WUS0 | Schist | Two small samples of glaucophane (?)-quartz-Fe-oxide (trace) schist. Fine- to medium-grained blue-grey phyllosilicates with trace Fe-minerals (with rusty halos) and quartz. | 0 | Camp Elliott | |
| GRD01WVS0 | Schist | Seven samples of fine-grained phyllosilicates with trace pyrite (?). Patchy Fe-oxide staining on the surface of the samples. | 0 | Ritter 154, 24 D | |
| GRD01WWS0 | Schist | Medium-sized sample of white quartz-tremolite schist. Weakly foliated, somewhat banded. | New York | 0 | Ritter 154, 14 G |
| GRD01WXS0 | Talc Schist | Large sample of talc-tremolite schist. Moderately- to well-foliated, very coarse grained and slightly banded. Original description: talc replacing tremolite. | New York | 1 | Ritter 154, 14 G |
| GRD01WYS0 | Schist | Large sample of purple and yellow tremolite. Foliated. Slightly banded. Original description: hexagonite schist. | New York | 1 | Ritter 154, 14 I |
| GRD01X0S0 | Schist | Small sample of quartz-tremolite schist. A small amount of blue-green mineral (serpentine?) on one side of the sample. Original description: Serpentine dike in tremolite schist. | New York | 0 | Ritter 154, 14 G |
| GRD01X2S0 | Talc Schist | Large sample of a folded talc schist with well-developed foliation. | New York | 1 | Ritter 154, 14 I |
| GRD01X3S0 | Schist | Anthophyllite schist. Grey acicular crystals with cream, fibrous intergrowths. Large sample. | California | 1 | Ritter 154, 14 I |
| GRD01X8S0 | St-bearing Schist | Medium-sized sample of muscovite-quartz-garnet-staurolite-actinolite schist. Garnet crystals most prevalent in a single band. Billet. Original description: St-Ga-Ky gneiss. | 0 | Ritter 154, 14 D | |
| GRD01X9S0 | St-bearing Schist | Small cut slab of muscovite-quartz-garnet-actinolite-staurolite schist. Original description: staurolite-garnet schist. | 0 | Ritter 154, 24 D | |
| GRD01XBS0 | Ky-bearing Schist | Kyanite-quartz-biotite schist. Large band of coarse-grained quartz-kyanite between biotite Nice kyanite. Billets. See also M-209 and M-34. | 1 | Ritter 154, 14 C | |
| GRD01XCS0 | Ky-bearing Schist | Kyanite-quartz-biotite schist. Large band of coarse-grained quartz-kyanite capped by foliated biotite. Nice kyanite. See also M-43 and M-34. | Alps | 1 | Ritter 154, 14 D |
| GRD01XHS0 | Ga-bearing Schist | Medium-sized sample of tremolite-plagioclase-muscovite-garnet schist. Well-foliated. See also M-36. | 1 | Ritter 154, 14 G | |
| GRD01XIS0 | Ga-bearing Schist | Small sample of tremolite-quartz-muscovite-garnet schist. Well-foliated. See also M-35. Missing 1/2 thin sections | 2 | Ritter 154, 3 G | |
| GRD01XJS0 | Ga-bearing Schist | Medium-sized sample of biotite-quartz-amphibole-garnet schist. Weakly-foliated. Porphyroblast-rich schist? | 1 | Ritter 154, 14 D | |
| GRD01XKS0 | Schist | Small sample of amphibole-purple tremolite (?) schist. Poorly foliated and generally coarse-grained. Original description: fuchsite-bearing quartz-mica schist. | Utah | 1 | Ritter 154, 14 D |
| GRD01XMS0 | Amphibole Schist | Small slab of amphibole-plagioclase-chlorite (trace) schist. Well-foliated with lineations. Portion of a cobble? | Alpine | 1 | Ritter 154, 24 C |
| GRD01XOS0 | Schist | Small sample of garnet-quartz-potassium feldspar-biotite schist. | Alpine | 1 | Ritter 154, 14 D |
| GRD01XQS0 | Schist | Medium-sized quartz-biotite-plagioclase-muscovite schist. Some banding and yellow sulfur mineralization. Original description: hornblende schist; Jurassic-Cretaceous. | California | 1 | Ritter 154, 24 C |
| GRD01XRS0 | Amphibole Schist | Small sample of amphibole-quartz-muscovite-glaucophane(?) schist. Original description: glaucophane schist. Jurassic? | Mexico | 1 | Ritter 154, 24 C |
| GRD01XVS0 | Schist | Medium-sized sample of quartz-talc-biotite-muscovite schist. Well-foliated. Large quartz augen (relict pebble?) | Alps | 1 | Ritter 154, 14 D |
| GRD01Y3S0 | Schist | Large sample of biotite-quartz schist. Very well foliated/lineated. Fine-grained. | Canada | 0 | Ritter 154, 14 I |
| GRD01YSS0 | Amphibole Schist | Spotted garnet amphibole schist. Amphibole-quartz-chalcopyrite-euhedral porphyroblasts of garnet. The garnet is mostly in a band. | 0 | Ritter 154, 14 G | |
| GRD0205 | Schist | Medium-sized sample of Pyrophyllite-magnetite-quartz-muscovite (trace). Well-foliated (~radiating lamellae), coarse- to very coarse-grained (blades) of pyrophyllite. Amphibole (or staurolite?) porphyroblasts. | 0 | Ritter 154, 23 C | |
| GRD0205S0 | Schist | Medium-sized sample of Pyrophyllite-magnetite-quartz-muscovite (trace). Well-foliated (~radiating lamellae), coarse- to very coarse-grained (blades) of pyrophyllite. Amphibole (or staurolite?) porphyroblasts. | 1 | Ritter 154, 14 D | |
| GRD020IS0 | Amphibole Schist | Multiple small samples of amphibolite. Generally amphibole-potassium feldspar-quartz-pyrite- epidote (rare). Mineral assemblage depends on individual sample. | New York | 0 | Ritter 154, 14 G |
| GRD020JS0 | Amphibole Schist | Amphibole-garnet-mica schist. Abundant garnets (many are approximately 4 mm in diameter) in amphibole matrix. Sample is capped by thin layer of fine-grained phyllosilicates (phyllite?). The contact between phyllite and amphibolite is Fe-stained. | 0 | Ritter 154, 3 G | |
| GRD0214S0 | Talc Schist | Medium-sized sample of talc-magnetite. Massive with little to no foliation. Original description: Soapstone. | Virginia | 0 | Ritter 154, 24 C |
| GRD0217S0 | Amphibole Schist | Amphibole-quartz-biotite-plagioclase schist. Faint foliation (slightly granoblastic). Mainly medium-grained. | 0 | Ritter 154, 14 G | |
| GRD021FS0 | Schist | Large sample of tremolite schist. Well-foliated and coarse-grained. | 0 | Ritter 154, 24 D |