| GRD002US0 |
Sedimentary Ore Deposits
|
Hematite, magnetite, and a small amount of quartz and muscovite. Sulfide minerals. Nice sample. |
New York |
0 |
Ritter 154, 14 Q |
| GRD020SS0 |
Sedimentary Ore Deposits
|
Non-foliated. Moderately granoblastic. Medium- to coarse-grained. Fe-oxide (magnetite), quartz, feldspar, garnet (almandine). Original description: Gneissic, meta-limestone (Fe-SS), granulite facies; Qtz-bio-almandine-magnetite. |
New York |
0 |
Ritter 154, 14 Q |
| GRD021KS0 |
Sedimentary Ore Deposits
|
Irregular banding. Amphibole (dark greenish?), calcite/carbonate, greenish epidote (?)/idocrase, quartz/plagioclase; Fe-hydroxide stains. Vulcan mine - contact metamorphic deposit of magnetite and hematite in Paleozoic carbonates associated with Mesozoic intrusion. |
California |
0 |
Ritter 154, 24 A |
| GRD02AQS0 |
Sedimentary Ore Deposits
|
Magnetite and hematite (minor) with irregular veinlets and interstices of dolomite and quartz (trace). Contact metamorphic deposit of magnetite and hematite in Paleozoic carbonates associated with Mesozoic intrusion. |
California |
0 |
Ritter 154, 14 Q |
| GRD02ARS0 |
Sedimentary Ore Deposits
|
Magnetite and hematite (minor) with very small irregular veinlets and interstices of dolomite- quartz (trace). Some pyrite. Contact metamorphic deposit of magnetite and hematite in Paleozoic carbonates associated with Mesozoic intrusion. |
California |
0 |
Ritter 154, 14 Q |
| GRD02ASS0 |
Sedimentary Ore Deposits
|
Magnetite with interstital dolomite as well as a large, coarse-grained dolomite vein. Minor amount of pyrite. |
California |
0 |
Ritter 154, 14 Q |
| GRD02BMS0 |
Sedimentary Ore Deposits
|
Fe-Mn mineralization in Devonian dolomite. |
New Mexico |
0 |
Ritter 154, 24 K |
| GRD02BMS1 |
Sedimentary Ore Deposits
|
Fe-Mn mineralization in Devonian dolomite. |
New Mexico |
0 |
Ritter 154, 14 Q |
| GRD02BMS2 |
Sedimentary Ore Deposits
|
Fe-Mn mineralization in Devonian dolomite. |
New Mexico |
0 |
Ritter 154, 14 R |
| GRD02BMS3 |
Sedimentary Ore Deposits
|
Fe-Mn mineralization in Devonian dolomite. |
New Mexico |
0 |
Ritter 154, 24 K |
| GRD02SMS0 |
Sedimentary Ore Deposits
|
|
New York |
0 |
Ritter 154, 17 O |
| GRD02XBS0 |
Sedimentary Ore Deposits
|
Gold bearing conglomerate |
South Africa |
0 |
Ritter 154, 14 R |
