| Object ID |
1997.6.1 |
| Object Name |
Anthracite |
| Accession# |
1997.6 |
| Description |
Anthracite coal is a sedimentary rock that is biogenic, that is, it is built up of material produced by living organisms. Anthracite is glassy in appearance, usually dark brown to black in color. Anthracite occurs in Paleozoic rocks, in particular the Carboniferous period in North America. It occurs in the Appalachian Mountains of Pennsylvania. |
| Chemical Comp |
Fixed carbon 93-98% |
| The Major Collection Name |
Rocks and Minerals Collection |
| Crystal System |
None |
| How old it might be |
345 million BP |
| Era |
Paleozoic |
| Formation |
Appalachian Mountains, PA |
| Found |
Chester County, PA |
| How new it might be |
1997 |
| Luster |
Glassy |
| Period |
Carboniferous |
| Rock type |
Sedimentary |
| Varieties/Occurrence |
Restricted to Paleozoic rocks in particular the Carboniferous of North America. Anthracite is found in strata forming large elongated basins corresponding to lagoons and coastal lakes often as part of a repeated series, alternating with sandstone and clay. |
| Weight |
0.000 |
|
