GRD006LS0 |
Andesite
|
pyroxene, plag, hornblende phenocrysts |
California |
0 |
Ritter 154, 16 A |
GRD006QS0 |
Andesite
|
Mt. Pelee 1902 Avalanche deposit. Could be block from block and ash flow. Original description: Hypersthene, vitrophyre tuff. |
Mt. Pelee, Martinique, Antilles |
0 |
Ritter 154, 16 A |
GRD006RS0 |
Andesite
|
Mt. Pelee 1902 dome |
Mt. Pelee, Martinique, Antilles |
0 |
Ritter 154, 16 A |
GRD006SS0 |
Andesite
|
andesite with inclusions, from Mt. Pelee 1902 dome |
Mt. Pelee, Martinique, Antilles |
0 |
Ritter 154, 16 B |
GRD006TS0 |
Andesite
|
1930 dome |
Mt. Pelee, Martinique, Antilles |
0 |
Ritter 154, 16 B |
GRD006US0 |
Andesite
|
Fresh sample with large euhedral doubly terminated hypersthene crystals. |
Mt. Pelee, Martinique, Antilles |
0 |
Ritter 154, 16 B |
GRD006VS0 |
Andesite
|
|
France |
0 |
Ritter 154, 16 B |
GRD006XS0 |
Andesite
|
Original description: Hypersthene-hornblende andesite. |
Martinique, Antilles |
0 |
Ritter 154, 19 H |
GRD006YS0 |
Andesite
|
Very fine-grained with olivine and pyroxene |
Saint Vincent & the Grenadines |
0 |
Ritter 154, 19 H |
GRD0070S0 |
Dacite
|
Hb-Plag-Bi(Phlog) Two samples with same number that may be related. Dacite and Granodiorite. One is pumiceous while the other is more crystal-rich. |
California |
0 |
Ritter 154, 15 Q |
GRD0071S0 |
Dacite
|
Hornblende dacite with inclusions. |
California |
0 |
Ritter 154, 15 Q |
GRD0072S0 |
Dacite
|
Hb dacite with inclusions |
California |
0 |
Ritter 154, 15 Q |
GRD0073S0 |
Andesite
|
Fine-grained with microphenocrysts of plag and pyroxene. |
California |
0 |
Ritter 154, 16 B |
GRD0074S0 |
Dacite
|
Pre-Lassen dacite with hornblende and biotite. |
California |
0 |
Ritter 154, 15 Q |
GRD0075S0 |
Andesite
|
Brokeoff andesite |
California |
0 |
Ritter 154, 19 H |
GRD0076S0 |
Andesite
|
Brokeoff andesite |
California |
0 |
Ritter 154, 19 H |
GRD0077S0 |
Andesite
|
1915 lava, TSB only |
California |
0 |
Ritter 154, 19 H |
GRD0078S0 |
Dacite
|
With inclusions. Nice small Hb. Pre-1915 Lassen dacite. |
California |
0 |
Camp Elliott |
GRD0079S0 |
Andesite
|
Inclusions. TSB only. |
California |
0 |
Ritter 154, 19 H |
GRD007AS0 |
Andesite
|
|
California |
0 |
Ritter 154, 19 H |
GRD007BS0 |
Andesite
|
|
California |
0 |
Ritter 154, 19 I |
GRD007CS0 |
Dacite
|
2 small hand samples. |
California |
0 |
Camp Elliott |
GRD007ES0 |
Andesite
|
|
California |
0 |
Ritter 154, 19 H |
GRD007FS0 |
Andesite
|
Hornblende |
California |
0 |
Ritter 154, 16 B |
GRD007IS0 |
Andesite
|
|
California |
0 |
Ritter 154, 19 H |
GRD007KS0 |
Dacite
|
East flow, Glass Mountain, Obsidian |
California |
0 |
Camp Elliott |
GRD007LS0 |
Dacite
|
Inclusion in I-283. Two small hand samples. |
California |
0 |
Camp Elliott |
GRD007MS0 |
Dacite
|
Medicine Flow. Small hand sample. |
California |
0 |
Camp Elliott |
GRD007NS0 |
Andesite
|
|
Oregon |
0 |
Ritter 154, 16 B |
GRD007OS0 |
Andesite
|
crystal-rich |
Oregon |
0 |
Ritter 154, 16 B |