RockWoofSketch map
Woof’s favorite find
American Smelt & Refin/Baltimore Md
We picked it because its USGS record mentions 2 gem or collectible minerals (Gold, Silver) and 3 of our card minerals overall. No other named site here scores as high on both counts. USGS lists it as plant for Gold. Minerals mentioned: Gold, Copper, Silver. Approx. location 39.290, -76.609. USGS record.
Ask first: a USGS record doesn’t mean you can visit. Find out who owns the land and get permission before collecting.
Field cards: what kind of sites?
A processing plant site.
Status terms come from USGS MRDS records.
Mineral cards
Copper
Mohs 2.5–3. Native copper is soft and turns green as it weathers. Mindat
2 sites
Gold
Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. Mindat
1 site
Silver
Mohs 2.5–3. Native silver tarnishes black. Mindat
1 site
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
Minerals recorded here
No individual minerals are listed in these records.
Commodities
Iron 4Chromium 3Nickel 1Manganese 1Antimony 1Aluminum 1Titanium 1Pigment 1Copper 1Gold 1Sites
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| General Refractories/Baltimore, Md. | Chromium | — | Plant | 39.290, -76.609 |
| Allied Chemicals/ Baltimore, Md. | Chromium | — | Plant | 39.288, -76.616 |
| Armco Steel/ Baltimore, Md. | Iron, Nickel | — | Plant | 39.290, -76.609 |
| Diamond Shamrock/ Baltimore, Md. | Manganese | — | Plant | 39.288, -76.616 |
| M & T Chemicals Antimony Plant | Antimony | — | Plant | 39.288, -76.616 |
| Tomke Aluminum/ Baltimore, Md. | Aluminum | — | Plant | 39.290, -76.609 |
| Baltimore Plant Ti | Titanium, Pigment | — | Plant | 39.204, -76.539 |
| Fansteel Inc/ Baltimore, Md. | Iron | — | Plant | 39.290, -76.609 |
| Feralloy Crp/ Baltimore, Md. | Iron | — | Plant | 39.290, -76.609 |
| (Facility) Cox Creek Refinery | Copper | — | Plant | 39.288, -76.616 |
| Kastalloy/ Baltimore, Md. | Iron | — | Plant | 39.290, -76.609 |
| American Smelt & Refin/Baltimore Md | Gold | — | Plant | 39.290, -76.609 |
| Harbison-Walker/ Baltimore, Md. | Chromium | — | Plant | 39.288, -76.616 |
Nearby counties
Baltimore County · Anne Arundel County · Howard County · Prince George's County · Carroll County
Maryland mineral guides
- Quartz in Maryland
- Gold in Maryland
- Mica in Maryland
- Feldspar in Maryland
- Magnetite in Maryland
- Pyrite in Maryland
Back to all Maryland counties.
How we built this page: we counted named sites in the USGS Mineral Resources Data System (MRDS) for this area, left out sand, gravel, crushed stone, clay pits and unnamed sites, grouped them by Census county, and linked every site to its USGS record. We did not visit these sites, and MRDS does not tell you who owns the land or whether collecting is allowed.
Source: USGS Mineral Resources Data System (MRDS). USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date. Each site links to its USGS record.
Updated