Sausalito Road Quarry, Sausalito, Marin County, California, USAi
| Regional Level Types | |
|---|---|
| Sausalito Road Quarry | Quarry |
| Sausalito | City |
| Marin County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 50' 24'' North , 122° 28' 50'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Sausalito | 7,156 (2017) | 2.1km |
| Belvedere | 2,121 (2018) | 3.9km |
| Marin City | 2,666 (2011) | 4.0km |
| Tiburon | 9,214 (2018) | 4.3km |
| Tamalpais-Homestead Valley | 10,735 (2011) | 6.5km |
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 |
|---|---|---|
| San Francisco Gem and Mineral Society, Inc. | San Francisco, California | 9km |
| Northern California Geological Society | Orinda, California | 27km |
| Vallejo Gem & Mineral Society | Vallejo, California | 35km |
| East Bay Mineral and Lapidary Club | Hayward, California | 39km |
| Mineral & Gem Society of Castro Valley | Hayward, California | 40km |
A Mn-REE occurrence/quarry located 0.5 mile (ca. 805 m) S of Sausalito at the base of a road cut on the north side of the road lateral to Highway 101.
Note: The geographic coordinates presented are approximate based on the description provided. There are no quarry symbols on the topo map near the area described.
Milton & Bastron (1971):
Note: The geographic coordinates presented are approximate based on the description provided. There are no quarry symbols on the topo map near the area described.
Milton & Bastron (1971):
"The minerals are found in the weathering zone on fracture surfaces in a chert unit of the Jurassic and Cretaceous Franciscan formation that consists of alternating beds of radiolarian chert, 5 to 10 cm thick, and shale, 1 or 2 cm thick. A basalt unit of the Franciscan crops out about a hundred meters away. The minerals occur near a fault (...), which probably favored downward percolation of groundwater. Before excavation, the occurrence was probably 5 or 10 meters below ground level on a steep hillside. Clay minerals, hematite, and lithiophorite are the most abundant minerals on the fracture surfaces; todorokite and the two rare earth minerals churchite and florencite are moderately abundant."
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
5 valid minerals. 1 (TL) - type locality of valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Churchite-(Y) Formula: Y(PO4) · 2H2O Description: Occurs as crusts and radiating needles. |
| ⓘ 'Clay minerals' |
| ⓘ Florencite-(Nd) (TL) Formula: NdAl3(PO4)2(OH)6 Type Locality: Description: Occurs as brown, pulverulent and earthy material. |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Lithiophorite Formula: (Al,Li)MnO2(OH)2 Description: Occurs as botryoidal crusts to several mm thick. |
| ⓘ Todorokite Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O Description: Occurs as soft nodules. |
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Todorokite | 4.DK.10 | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| ⓘ | Lithiophorite | 4.FE.25 | (Al,Li)MnO2(OH)2 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Florencite-(Nd) (TL) | 8.BL.13 | NdAl3(PO4)2(OH)6 |
| ⓘ | Churchite-(Y) | 8.CJ.50 | Y(PO4) · 2H2O |
| Unclassified | |||
| ⓘ | 'Clay minerals' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Churchite-(Y) | Y(PO4) · 2H2O |
| H | ⓘ Florencite-(Nd) | NdAl3(PO4)2(OH)6 |
| H | ⓘ Lithiophorite | (Al,Li)MnO2(OH)2 |
| H | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Li | Lithium | |
| Li | ⓘ Lithiophorite | (Al,Li)MnO2(OH)2 |
| O | Oxygen | |
| O | ⓘ Churchite-(Y) | Y(PO4) · 2H2O |
| O | ⓘ Florencite-(Nd) | NdAl3(PO4)2(OH)6 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Lithiophorite | (Al,Li)MnO2(OH)2 |
| O | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Na | Sodium | |
| Na | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Mg | Magnesium | |
| Mg | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Al | Aluminium | |
| Al | ⓘ Florencite-(Nd) | NdAl3(PO4)2(OH)6 |
| Al | ⓘ Lithiophorite | (Al,Li)MnO2(OH)2 |
| Al | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| P | Phosphorus | |
| P | ⓘ Churchite-(Y) | Y(PO4) · 2H2O |
| P | ⓘ Florencite-(Nd) | NdAl3(PO4)2(OH)6 |
| 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 |
| Mn | Manganese | |
| Mn | ⓘ Lithiophorite | (Al,Li)MnO2(OH)2 |
| Mn | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Fe | Iron | |
| Fe | ⓘ Hematite | Fe2O3 |
| Sr | Strontium | |
| Sr | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Y | Yttrium | |
| Y | ⓘ Churchite-(Y) | Y(PO4) · 2H2O |
| Ba | Barium | |
| Ba | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Nd | Neodymium | |
| Nd | ⓘ Florencite-(Nd) | NdAl3(PO4)2(OH)6 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- California Coast RangesAccretionary Complex
- Franciscan DomainDomain
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Sausalito Road Quarry, Sausalito, Marin County, California, USA