Mag group, Oatman Mining District, Black Mountains, Mohave County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Mag group | Group of Claims |
| Oatman Mining District | Mining District |
| Black Mountains | Mountain Range |
| Mohave County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
35° 2' 48'' North , 114° 25' 53'' West
Latitude & Longitude (decimal):
Type:
Group of Claims
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Oatman | 135 (2011) | 4.9km |
| Mesquite Creek | 416 (2011) | 15.3km |
| Bullhead City | 39,445 (2017) | 16.8km |
| Laughlin | 7,323 (2011) | 18.6km |
| Mohave Valley | 2,616 (2011) | 19.1km |
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 |
|---|---|---|
| Silvery Colorado River Rock Club | Bullhead City, Arizona | 17km |
| Mohave County Gemstoners | Kingman, Arizona | 38km |
Mindat Locality ID:
106260
Long-form identifier:
mindat:1:2:106260:4
GUID (UUID V4):
66ea84ea-b92a-4a10-bdfc-89d0026bbb6c
Other/historical names associated with this locality:
Mag claims
A magnesite-Mg occurrence located in sec. 8, T19N, R20W, G&SRM, about 3 miles NW of Oatman, on the W side of the Black Mountains. The USGS MRDS databaase accuracy for this locality is not stated.
Mineralization is a magnesite deposit hosted in clastic sedimentary rocks. The deposits trend N and dip as much as 70 degrees. Andesite overlies deposit-bearing sediments. The highest grade and thickest material is found in the Mag group. Associated rocks include Pliocene-Miocene trachyte and andesite. Local rocks include Middle Miocene to Oligocene volcanic rocks.
The brucite deposits are layers as much as 30 feet thick resting on the Alcyone trachyte, the oldest unit of the mid-upper Tertiary volcanic rock sequence. The deposits are generally overlain by Oatman Andesite but at several places the brucite layers appear to be within the andesite. Some layers are as much as 4 to 5 feet thick, but mostly thinly laminated material of alternating bands of of contrasting shades of green, gray, yellow and white. Fresh brucite ranges from serpentine green to light gray to almost white. The brucite is cryptocrystalline and dense with subconchoidal fracture.
Workings include diamond drilling operations during the 1940's. No exploration since 1953. The deposits are too small and too low-grade to be mined profitably.
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
4 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| β Brucite Formula: Mg(OH)2 References: |
| β Calcite Formula: CaCO3 References: |
| β Dolomite Formula: CaMg(CO3)2 References: |
| β Magnesite Formula: MgCO3 References: |
| β 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| β | Brucite | 4.FE.05 | Mg(OH)2 |
| Group 5 - Nitrates and Carbonates | |||
| β | Calcite | 5.AB.05 | CaCO3 |
| β | Magnesite | 5.AB.05 | MgCO3 |
| β | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| Unclassified | |||
| β | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Brucite | Mg(OH)2 |
| H | β Serpentine Subgroup | D3[Si2O5](OH)4 |
| C | Carbon | |
| C | β Calcite | CaCO3 |
| C | β Dolomite | CaMg(CO3)2 |
| C | β Magnesite | MgCO3 |
| O | Oxygen | |
| O | β Brucite | Mg(OH)2 |
| O | β Calcite | CaCO3 |
| O | β Dolomite | CaMg(CO3)2 |
| O | β Magnesite | MgCO3 |
| O | β Serpentine Subgroup | D3[Si2O5](OH)4 |
| Mg | Magnesium | |
| Mg | β Brucite | Mg(OH)2 |
| Mg | β Dolomite | CaMg(CO3)2 |
| Mg | β Magnesite | MgCO3 |
| Si | Silicon | |
| Si | β Serpentine Subgroup | D3[Si2O5](OH)4 |
| Ca | Calcium | |
| Ca | β Calcite | CaCO3 |
| Ca | β Dolomite | CaMg(CO3)2 |
Other Databases
| Link to USGS MRDS: | 10060266 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
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References
