Macchaus Mine, Mack House, Alleghany Mining District (Forest Mining District), Sierra County, California, USAi
| Regional Level Types | |
|---|---|
| Macchaus Mine | Mine |
| Mack House | - not defined - |
| Alleghany Mining District (Forest Mining District) | Mining District |
| Sierra County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 27' 16'' North , 120° 52' 15'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Pike | 134 (2011) | 11.0km |
| Washington | 185 (2011) | 12.2km |
| Downieville | 282 (2011) | 12.3km |
| Camptonville | 158 (2011) | 15.3km |
| North San Juan | 269 (2011) | 22.1km |
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 |
|---|---|---|
| Nevada County Gem & Mineral Society | Grass Valley, California | 31km |
Mindat Locality ID:
93404
Long-form identifier:
mindat:1:2:93404:7
GUID (UUID V4):
131a834f-6632-4243-ae47-df3cc7332fe4
A former Cr-Au occurrence/mine located in sec. 5, T18N, R10E, MDM, 0.3 km (0.2 mile) SW of Mack House, along the N canyon wall of Kanaka Creek (approximately 2 miles SW of Alleghany), on National Forest land. The property comprises 3 claims. Owned & operated by H. Macchaus, G. E. Redmayne, C. D. Mcgonigal & S. Finan, Alleghany, California (1918- ).
First and last production occurred in 1918. MRDS database stated accuracy for this location is 1,000 meters. Assumed spot at the center of the SE¼E½ sec. 5.
The ore body is lenticular in form. The ore occurred as small, lenticular msses weighing 14 to 20 tons each. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains) and/or Paleozoic marine rocks, undivided, unit 6 (Northwestern Sierra Nevada).
Workings include surface openings comprised of 12 small open cuts.
Production data are found in: Rynearson, G.A. (1953).
Analytical data results: The ore is 46% Cr2O3.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Formula: Fe2+Cr3+2O4 |
| ⓘ Magnesiochromite Formula: MgCr2O4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Chromite ? | 4.BB.05 | Fe2+Cr3+2O4 |
| ⓘ | Magnesiochromite | 4.BB.05 | MgCr2O4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| O | ⓘ Magnesiochromite | MgCr2O4 |
| Mg | Magnesium | |
| Mg | ⓘ Magnesiochromite | MgCr2O4 |
| Cr | Chromium | |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Cr | ⓘ Magnesiochromite | MgCr2O4 |
| Fe | Iron | |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
Other Databases
| Link to USGS MRDS: | 10043626 |
|---|
Other Regions, Features and Areas containing this locality
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060910149
