Heavy Weight Mine, Heavy Weight Hill, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Heavy Weight Mine | Mine |
| Heavy Weight Hill | Hill |
| Helvetia | Town (Former) |
| Helvetia-Rosemont Mining District | Mining District |
| Pima County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 51' 47'' North , 110° 46' 35'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Corona de Tucson | 5,675 (2011) | 11.4km |
| East Sahuarita | 1,622 (2006) | 16.9km |
| Sahuarita | 25,707 (2017) | 19.9km |
| Green Valley | 21,391 (2011) | 20.5km |
| Vail | 10,208 (2011) | 21.4km |
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 |
|---|---|---|
| Old Pueblo Lapidary Club | Tucson, Arizona | 42km |
| Tucson Gem and Mineral Society | Tucson, Arizona | 42km |
Mindat Locality ID:
36119
Long-form identifier:
mindat:1:2:36119:9
GUID (UUID V4):
ff04e6e9-e377-4955-bff9-8be83d39a5f0
Other/historical names associated with this locality:
Light Weight Mine
A former small underground Cu-Ag-Au-Be mine located in the SE ¼ sec. 14, T.18S., R.15E., ¾ mile NE of Helvetia and ½ mile NE of the Copper World and Leader Mines, 28 miles SE of Tucson, on private land. It lies on the steep southwest slope of Heavy Weight Hill, at the east end of a traverse ridge or spur. Comprised of the Heavy Weight and Light Weight claims. Discovered 1887. Opened late in the 1880's. Produced 1889-1902. Owned at times, or in part, by the Helvetia Copper Co.; Michigan-Arizona Development Co.; and the Helvetia Copper Co. of Arizona.
Mineralization is irregular, pyrometasomatic replacement orebodies containing copper carbonates and sulfides in silicified, garnetized, sheared, and thrust-faulted Paleozoic Concha limestone along a contact with reddish-gray Laramide quartz latite porphyry intrusive. The shear zone strikes S25W and dips steeply SE. The rocks have been locally considerably disturbed, sheared, and faulted. The intrusive rock has a fine-granular groundmass of orthoclase, oligoclase, quartz, and hornblende in which rest phenocrysts to 0.4 inches (1 cm) long of oligoclase, orthoclase, and quartz. In general it underlies the limestone.
The ores consist principally of the common sulfides and carbonates of copper.
Local structures include thrust and normal faulting, fracture zones, homoclinal. Regional trends include tilting and broad open folds in the south and extensive faulting in the north.
Workings include tunnel operations and cuts and are 914.4 meters long. Development totals some 3,000 feet of workings on 3 levels. Closed in 1902 due to low copper prices. Produced some 3,000 tons of ore averaging about 5% Cu and 1.5 oz. Ag/T from the late 1880's to 1902.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) Description: Phenocrysts to 0.4 inches (1 cm) diameter in wall rocks. |
| ⓘ Albite var. Oligoclase Formula: (Na,Ca)[Al(Si,Al)Si2O8] Description: Phenocrysts to 0.4 inches (1 cm) diameter in wall rocks. |
| ⓘ Anglesite Formula: PbSO4 References: Rolf LuetckeIdentification: Visual Identification |
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
| ⓘ Bornite Formula: Cu5FeS4 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Covellite Formula: CuS |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 Colour: Green, brown (iron-stained) |
| ⓘ Orthoclase Formula: K(AlSi3O8) Description: Phenocrysts to 0.4 inches (1 cm) diameter in wall rocks. |
| ⓘ Plumbojarosite Formula: Pb0.5Fe3+3(SO4)2(OH)6 References: Rolf LuetckeIdentification: Visual Identification |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Wulfenite Formula: Pb(MoO4) References: |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Covellite | 2.CA.05a | CuS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anglesite | 7.AD.35 | PbSO4 |
| ⓘ | Plumbojarosite | 7.BC.10 | Pb0.5Fe3+3(SO4)2(OH)6 |
| ⓘ | Wulfenite | 7.GA.05 | Pb(MoO4) |
| Group 9 - Silicates | |||
| ⓘ | Orthoclase | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | var. Oligoclase | 9.FA.35 | (Na,Ca)[Al(Si,Al)Si2O8] |
| Unclassified | |||
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Plumbojarosite | Pb0.5Fe33+(SO4)2(OH)6 |
| C | Carbon | |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Anglesite | PbSO4 |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| O | ⓘ Orthoclase | K(AlSi3O8) |
| O | ⓘ Plumbojarosite | Pb0.5Fe33+(SO4)2(OH)6 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Wulfenite | Pb(MoO4) |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Al | ⓘ Orthoclase | K(AlSi3O8) |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Si | ⓘ Orthoclase | K(AlSi3O8) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| S | Sulfur | |
| S | ⓘ Anglesite | PbSO4 |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Covellite | CuS |
| S | ⓘ Plumbojarosite | Pb0.5Fe33+(SO4)2(OH)6 |
| K | Potassium | |
| K | ⓘ Orthoclase | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Fe | Iron | |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Plumbojarosite | Pb0.5Fe33+(SO4)2(OH)6 |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Covellite | CuS |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Mo | Molybdenum | |
| Mo | ⓘ Wulfenite | Pb(MoO4) |
| Pb | Lead | |
| Pb | ⓘ Anglesite | PbSO4 |
| Pb | ⓘ Plumbojarosite | Pb0.5Fe33+(SO4)2(OH)6 |
| Pb | ⓘ Wulfenite | Pb(MoO4) |
Other Databases
| Link to USGS MRDS: | 10039409 |
|---|
Other Regions, Features and Areas containing this locality
Mexico
- Sierra Madre OccidentalMountain Range
North America
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mazatzal DomainDomain
USA
- Arizona
- Santa Rita MountainsMountain Range
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References
Heavy Weight Mine, Heavy Weight Hill, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA