Southern pit , Hollofield quarries, Hollofield, Baltimore County, Maryland, USAi
| Regional Level Types | |
|---|---|
| Southern pit οΌHollofield quarries | Group of Quarries (Abandoned) |
| Hollofield | - not defined - |
| Baltimore County | County |
| Maryland | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 18' 34'' North , 76° 47' 32'' West
Latitude & Longitude (decimal):
Type:
Group of Quarries (Abandoned)
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Milford Mill | 29,042 (2011) | 4.7km |
| Ellicott City | 65,834 (2011) | 4.7km |
| Woodlawn | 37,879 (2011) | 5.7km |
| Randallstown | 32,430 (2011) | 6.4km |
| Catonsville | 41,567 (2011) | 6.7km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Central Maryland Rock and Mineral Collectors Exchange | Elkridge, Maryland | 13km |
| Baltimore Mineral Society | Baltimore, Maryland | 16km |
| Chesapeake Gem & Mineral Society | Baltimore, Maryland | 16km |
| Gem Cutters Guild of Baltimore, Inc. | Baltimore, Maryland | 16km |
| Gem, Lapidary, and Mineral Society of Montgomery County, MD., Inc. | Rockville, Maryland | 40km |
Mindat Locality ID:
142902
Long-form identifier:
mindat:1:2:142902:5
GUID (UUID V4):
ec822291-f207-4afc-abcc-c1bfc4ef15c5
The former Hollowfield quarry is the largest and oldest of two quarries in the area.
Two quarries are in metamorphosed gabbroic rocks.
Both quarries now within a State Park.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| β Aragonite Formula: CaCO3 |
| β Calcite Formula: CaCO3 |
| β 'Chlorite Group' |
| β Enstatite Formula: Mg2Si2O6 |
| β Enstatite var. Bronzite Formula: (Mg,Fe2+)2[SiO3]2 |
| β 'Garnet Group' Formula: X3Z2(SiO4)3 |
| β Laumontite Formula: CaAl2Si4O12 · 4H2O |
| β Pyrite Formula: FeS2 |
| β Pyrrhotite Formula: Fe1-xS |
| β Vermiculite Formula: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Pyrrhotite | 2.CC.10 | Fe1-xS |
| β | Pyrite | 2.EB.05a | FeS2 |
| Group 5 - Nitrates and Carbonates | |||
| β | Calcite | 5.AB.05 | CaCO3 |
| β | Aragonite | 5.AB.15 | CaCO3 |
| Group 9 - Silicates | |||
| β | Enstatite | 9.DA.05 | Mg2Si2O6 |
| β | var. Bronzite | 9.DA.05 | (Mg,Fe2+)2[SiO3]2 |
| β | Vermiculite | 9.EC.50 | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 Β· 8H2O |
| β | Laumontite | 9.GB.10 | CaAl2Si4O12 Β· 4H2O |
| Unclassified | |||
| β | 'Chlorite Group' | - | |
| β | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Laumontite | CaAl2Si4O12 · 4H2O |
| H | β Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| C | Carbon | |
| C | β Aragonite | CaCO3 |
| C | β Calcite | CaCO3 |
| O | Oxygen | |
| O | β Aragonite | CaCO3 |
| O | β Calcite | CaCO3 |
| O | β Enstatite | Mg2Si2O6 |
| O | β Laumontite | CaAl2Si4O12 · 4H2O |
| O | β Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| O | β Enstatite var. Bronzite | (Mg,Fe2+)2[SiO3]2 |
| O | β Garnet Group | X3Z2(SiO4)3 |
| Mg | Magnesium | |
| Mg | β Enstatite | Mg2Si2O6 |
| Mg | β Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| Mg | β Enstatite var. Bronzite | (Mg,Fe2+)2[SiO3]2 |
| Al | Aluminium | |
| Al | β Laumontite | CaAl2Si4O12 · 4H2O |
| Al | β Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| Si | Silicon | |
| Si | β Enstatite | Mg2Si2O6 |
| Si | β Laumontite | CaAl2Si4O12 · 4H2O |
| Si | β Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| Si | β Enstatite var. Bronzite | (Mg,Fe2+)2[SiO3]2 |
| Si | β Garnet Group | X3Z2(SiO4)3 |
| S | Sulfur | |
| S | β Pyrite | FeS2 |
| S | β Pyrrhotite | Fe1-xS |
| Ca | Calcium | |
| Ca | β Aragonite | CaCO3 |
| Ca | β Calcite | CaCO3 |
| Ca | β Laumontite | CaAl2Si4O12 · 4H2O |
| Fe | Iron | |
| Fe | β Pyrite | FeS2 |
| Fe | β Pyrrhotite | Fe1-xS |
| Fe | β Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| Fe | β Enstatite var. Bronzite | (Mg,Fe2+)2[SiO3]2 |
Other Databases
| Link to USGS MRDS: | 10145682 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Piedmontia DomainDomain
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References
