| 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 |
| GRD020WS0 |
Phyllite
|
Multiple samples of light green fine-grained phyllosilicates with quartz porphyroblasts. Foliated. Dull sheen. Billet. |
|
0 |
Ritter 154, 14 E |
| 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 |
| GRD021HS0 |
Talc Schist
|
Small sample of chlorite-talc-muscovite (?). Foliated and medium to coarse-grained. Soapy feel. |
|
0 |
Ritter 154, 24 C |
| GRD021IS0 |
Schist
|
Slab of chlorite-quartz-magnetite schist. White delta-clasts (quartz) and euhedral black crystals (magnetite) in green fine-grained chlorite. Poorly foliated. Original description: Chl-Q-Mt metaconglomerate. |
|
0 |
Camp Elliott |
| GRD024NS0 |
Schistose
|
Two cut slabs measuring ~6x6x1 cm each. Composed of soft black-blue lenses in medium-grained light (micaceous?) matrix. Billet pieces. Original label: 28, November, 1980. |
Pacific Ocean |
1 |
Ritter 154, 37 D |
| GRD024US0 |
Schist
|
Two small (both measuring ~5x5x2.5cm from the cut faces). Exterior of the sample appears to be limey with occasional small muscovite patches. Interior has some grey patches and glaucophane(?) Billet pieces. Original label: 28 November, 1980 |
Pacific Ocean |
1 |
Ritter 154, 37 D |
| GRD024VS0 |
Schist
|
Large (~8x7x3 cm), uncut sample. Exterior of the sample appears to be limey with small lithic fragments in the limey matrix. Also in the rind are small books of muscovite (silver) and glaucophane (blue). Original label: 28 November, 1980 |
Pacific Ocean |
0 |
Ritter 154, 37 D |
| GRD024WS0 |
Schist
|
Two, small (~3x3x1 cm each), uncut samples. White, powdery texture. Original label: 28 November, 1980. |
Pacific Ocean |
0 |
Ritter 154, 37 D |
| GRD02ADS0 |
Schist
|
Tremolite-pyroxene (grey)-plagioclase-quartz-Fe-oxide schist. |
|
1 |
Ritter 154, 24 C |
| GRD02AIS0 |
Sil-bearing Schist
|
Large sample of magnetite-quartz-sillimanite schist. |
New York |
1 |
Ritter 154, 14 R |
| GRD02BVS0 |
Phyllite
|
Chlorite phyllite. Black veinlet. Original description: metagreywacke. |
California |
1 |
Ritter 154, 14 E |
| GRD02BYS0 |
Ga-bearing Schist
|
Muscovite-quartz-amphibole-garnet-chlorite-pyrite- Fe-oxide (trace). Porphyroblasts of garnets and quartz. Nice sample. |
|
0 |
Ritter 154, 24 C |
| GRD02EGS0 |
Phyllite
|
Slab of black phyllite. Perfect slaty cleavage. Books of mica at oblique angles to cleavage. |
|
0 |
Ritter 154, 14 E |
| GRD02EIS0 |
Amphibole Schist
|
Actinolite-biotite-muscovite (trace) schist. Large, green sample. |
California |
0 |
Ritter 154, 24 M |
| GRD02ENS0 |
Schist
|
Orocopia Schist. Muscovite-biotite-quartz-hornblende (?) schist. |
California |
0 |
Ritter 154, 24 M |
