Calvert Cliffs, Calvert Co., Maryland, USAi
| Regional Level Types | |
|---|---|
| Calvert Cliffs | Cliff |
| Calvert Co. | County |
| Maryland | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 24' 18'' North , 76° 24' 36'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Lusby | 1,835 (2011) | 4.0km |
| Chesapeake Ranch Estates | 10,519 (2011) | 6.6km |
| Long Beach | 1,821 (2011) | 8.0km |
| Drum Point | 2,731 (2011) | 8.8km |
| Calvert Beach | 808 (2011) | 8.9km |
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 |
|---|---|---|
| Calvert Marine Museum Fossil Club | Solomons, Maryland | 10km |
Mindat Locality ID:
263476
Long-form identifier:
1:2:263476:3
GUID (UUID V4):
bab1fa02-540b-4db1-aa3e-0fbcf9743852
Calvert Cliffs is partly in a state park, and is renowned for its Miocene fossils, of which collecting is allowed. Deposits of iron and manganese minerals as crusts, nodular and botryoidal aggregates occur near Calvert Cliffs along various seeps. These are biominerals, produced by microbial precipitation.
Calvert Cliffs State Park is a public recreation area that protects a portion of cliffs that extend for 24 miles along the eastern flank of the Calvert Peninsula on the west side of Chesapeake Bay from Chesapeake Beach southward to Drum Point.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Birnessite Formula: (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O Reference: http://www.irocks.com/chesapeake-biominerals-hazen-article/ |
| ⓘ Copiapite Formula: Fe2+Fe3+4(SO4)6(OH)2 · 20H2O Reference: http://www.irocks.com/chesapeake-biominerals-hazen-article/ |
| ⓘ Hematite Formula: Fe2O3 Reference: http://www.irocks.com/chesapeake-biominerals-hazen-article/ |
| ⓘ Hollandite Formula: Ba(Mn4+6Mn3+2)O16 Reference: http://www.irocks.com/chesapeake-biominerals-hazen-article/ |
| ⓘ 'Limonite' Reference: http://www.irocks.com/chesapeake-biominerals-hazen-article/ |
| ⓘ Marcasite Formula: FeS2 Reference: http://www.irocks.com/chesapeake-biominerals-hazen-article/ |
| ⓘ Romanèchite Formula: (Ba,H2O)2(Mn4+,Mn3+)5O10 Reference: http://www.irocks.com/chesapeake-biominerals-hazen-article/ |
| ⓘ Todorokite Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O Reference: http://www.irocks.com/chesapeake-biominerals-hazen-article/ |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Birnessite | 4.FL.45 | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Hollandite | 4.DK.05a | Ba(Mn4+6Mn3+2)O16 |
| ⓘ | Romanèchite | 4.DK.10 | (Ba,H2O)2(Mn4+,Mn3+)5O10 |
| ⓘ | Todorokite | 4.DK.10 | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Copiapite | 7.DB.35 | Fe2+Fe3+4(SO4)6(OH)2 · 20H2O |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| H | ⓘ Romanèchite | (Ba,H2O)2(Mn4+,Mn3+)5O10 |
| H | ⓘ Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| H | ⓘ Copiapite | Fe2+Fe43+(SO4)6(OH)2 · 20H2O |
| O | Oxygen | |
| O | ⓘ Hollandite | Ba(Mn64+Mn23+)O16 |
| O | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| O | ⓘ Romanèchite | (Ba,H2O)2(Mn4+,Mn3+)5O10 |
| O | ⓘ Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| O | ⓘ Copiapite | Fe2+Fe43+(SO4)6(OH)2 · 20H2O |
| O | ⓘ Hematite | Fe2O3 |
| Na | Sodium | |
| Na | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Na | ⓘ Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| Mg | Magnesium | |
| Mg | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Al | Aluminium | |
| Al | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| S | Sulfur | |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Copiapite | Fe2+Fe43+(SO4)6(OH)2 · 20H2O |
| K | Potassium | |
| K | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Ca | Calcium | |
| Ca | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Ca | ⓘ Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| Mn | Manganese | |
| Mn | ⓘ Hollandite | Ba(Mn64+Mn23+)O16 |
| Mn | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Mn | ⓘ Romanèchite | (Ba,H2O)2(Mn4+,Mn3+)5O10 |
| Mn | ⓘ Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| Fe | Iron | |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Copiapite | Fe2+Fe43+(SO4)6(OH)2 · 20H2O |
| Fe | ⓘ Hematite | Fe2O3 |
| Sr | Strontium | |
| Sr | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Ba | Barium | |
| Ba | ⓘ Hollandite | Ba(Mn64+Mn23+)O16 |
| Ba | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Ba | ⓘ Romanèchite | (Ba,H2O)2(Mn4+,Mn3+)5O10 |
External Links
http://www.irocks.com/chesapeake-biominerals-hazen-article/
Calvert Cliffs State Park
http://dnr.maryland.gov/publiclands/Pages/southern/calvertcliffs.aspx
Calvert Cliffs State Park
http://dnr.maryland.gov/publiclands/Pages/southern/calvertcliffs.aspx
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Carolinia DomainDomain
- Newark Group BasinsBasin
- West Atlantic BasinBasin
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Calvert Cliffs, Calvert Co., Maryland, USA