| GRD00CJS0 |
Syenite
|
Nepheline syenite with pegmatite vein. Albite, microcline, lepidolite, acmite, and calcite. Samples 474-500 taken from Rwanda and Burundi (East African Rift) |
Rwanda |
0 |
Ritter 154, 15 D |
| GRD00CKS0 |
Carbonatite Extrusive
|
Carbonatite (Pyrrh, pyrochlore, Apatite). Samples 474-500 taken from Rwanda and Burundi (East African Rift) |
Rwanda |
0 |
Ritter 154, 16 N |
| GRD00CLS0 |
Foid-Bearing Extrusive
|
Leucite phenocrysts. Samples 474-500 taken from Rwanda and Burundi (East African Rift). |
Rwanda |
0 |
Ritter 154, 20 I |
| GRD00CMS0 |
Undersaturated
|
5 cm leucite crystals. Neph-leucitite. Samples 474-500 taken from Rwanda and Burundi (East African Rift) |
Rwanda |
0 |
Ritter 154, 16 N |
| GRD00CNS0 |
Foid-Bearing Extrusive
|
Leucite phenocrysts. Samples 474-500 taken from Rwanda and Burundi (East African Rift) |
Rwanda |
0 |
Ritter 154, 16 N |
| GRD00COS0 |
Dunite
|
|
California |
0 |
Camp Elliott |
| GRD00CPS0 |
Foid-Bearing Extrusive
|
Nephelinite Samples I-501 to I-510 taken from Congo Tanganikia province. |
Congo {Democratic Rep} |
1 |
Ritter 154, 16 N |
| GRD00CQS0 |
Undersaturated
|
Original description: Analcite basanite. Samples I-501 to I-510 taken from Congo Tanganikia province |
Congo {Democratic Rep} |
0 |
Ritter 154, 20 I |
| GRD00CRS0 |
Undersaturated
|
Original description: Ijolite (augite+neph). Samples I-501 to I-510 taken from Congo Tanganikia province |
Congo {Democratic Rep} |
0 |
Ritter 154, 20 I |
| GRD00CSS0 |
Undersaturated
|
Original description: Urtite (similar to ijolite - augite, neph). Samples I-501 to I-510 taken from Congo Tanganikia province |
Congo {Democratic Rep} |
0 |
Ritter 154, 16 N |
| GRD00CTS0 |
Undersaturated
|
Original description: Biotite malteigite. Samples I-501 to I-510 taken from Congo Tanganikia province |
Tanzania |
0 |
Ritter 154, 20 I |
| GRD00CUS0 |
Undersaturated
|
Original description: Olivine analcitite. Samples I-501 to I-510 taken from Congo Tanganikia province. |
Congo {Democratic Rep} |
0 |
Ritter 154, 20 I |
| GRD00CVS0 |
Undersaturated
|
Original description: trachybasalt. Samples I-501 to I-510 taken from Congo Tanganikia province. |
Congo {Democratic Rep} |
0 |
Ritter 154, 20 I |
| GRD00CWS0 |
Undersaturated
|
Original description: Phonolite. Samples I-501 to I-510 taken from Congo Tanganikia province |
Tanzania |
0 |
Ritter 154, 20 I |
| GRD00CXS0 |
Trachyte
|
Original description: Soda trachyte. Samples I-501 to I-510 taken from Congo Tanganikia province |
Congo {Democratic Rep} |
0 |
Ritter 154, 15 H |
| GRD00CYS0 |
Trachyte
|
Original description: Q-anorthoclase trachyte (Q-Amph-green Px). Samples 511-519 from Ascension Island. |
United Kingdom |
0 |
Ritter 154, 15 H |
| GRD00CZS0 |
Basalt
|
Vesicular olivine basalt. Original description: Olivine basalt. Samples 511-519 from Ascension Island. |
United Kingdom |
0 |
Ritter 154, 20 F |
| GRD00D0S0 |
Pyroclastic Fragments
|
concretions. Samples 511-519 from Ascension Island. |
United Kingdom |
0 |
Ritter 154, 15 J |
| GRD00D1S0 |
Rhyolite
|
Small sample. Original description: Soda comendite (peralkaline rhyolite). Samples 511-519 from Ascension Island. |
United Kingdom |
0 |
Camp Elliott |
| GRD00D2S0 |
Undersaturated
|
Original description: trachybasalt. Samples 511-519 from Ascension Island. |
United Kingdom |
0 |
Ritter 154, 20 I |
| GRD00D3S0 |
Undersaturated
|
Original description: Pantelleritic trachyte. Samples 511-519 from Ascension Island. |
United Kingdom |
0 |
Ritter 154, 20 I |
| GRD00D4S0 |
Basalt
|
Original description: Olivine basalt. |
United Kingdom |
0 |
Ritter 154, 20 F |
| GRD00D5S0 |
Trachyte
|
Original description: Aegirine trachyte. |
United Kingdom |
0 |
|
| GRD00D6S0 |
Obsidian
|
Small sample. Samples 511-519 from Ascension Island. |
United Kingdom |
0 |
Camp Elliott |
| GRD00D7S0 |
Undersaturated
|
Original description: Phonolitic trachyte. |
United Kingdom |
0 |
Ritter 154, 20 I |
| GRD00D8S0 |
Basalt
|
weathered basalt |
United Kingdom |
0 |
Ritter 154, 20 F |
| GRD00D9S0 |
Basanite
|
Original description: Neph basanite. |
United Kingdom |
0 |
Ritter 154, 20 I |
| GRD00DAS0 |
Undersaturated
|
Original description: Phonolite. |
United Kingdom |
0 |
Ritter 154, 20 I |
| GRD00DBS0 |
Rhyolite
|
Small sample. Original description: Q porphyry. |
South Africa |
0 |
Camp Elliott |
| GRD00DCS0 |
Basalt
|
dolerite |
South Africa |
0 |
Ritter 154, 20 F |
