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Woodward Ranch, Alpine, Brewster County, Texas, USAi
| Regional Level Types | |
|---|---|
| Woodward Ranch | Ranch |
| Alpine | Town |
| Brewster County | County |
| Texas | State |
| USA | Country |
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Latitude & Longitude (WGS84):
30° 9' 10'' North , 103° 35' 57'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Alpine | 5,952 (2017) | 23.7km |
| Marathon | 430 (2014) | 34.6km |
| Marfa | 1,733 (2017) | 44.1km |
| Fort Davis | 1,201 (2011) | 56.1km |
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 |
|---|---|---|
| Chihuahuan Desert Gem and Mineral Club | Alpine, Texas | 24km |
12 miles south of Alpine
Deposit: Filling of vesicles and amygdules in mafic flows. The woodward ranch is a commercial collecting site.
Development: Intermittent operations by mineral collecters
Geology: Plume and moss agates are common in the sheep canyon and cottonwood springs basalts, banded pastel-colored agates occur in the crossen trachyte, bloodstone is common in potato hill andesite, and opal and amethyst occur in some basalts.
Rock formation(s): Sheep Canyon Basalt;Cottonwood Springs Basalt
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
6 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:
| ⓘ 'Amber' ? |
| ⓘ Anorthite Formula: Ca(Al2Si2O8) |
| ⓘ Anorthite var. Labradorite Formula: (Ca,Na)[Al(Al,Si)Si2O8] |
| ⓘ Aragonite Formula: CaCO3 |
| ⓘ 'Bloodstone' Formula: SiO2 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Opal Formula: SiO2 · nH2O |
| ⓘ Opal var. Precious Opal Formula: SiO2 · nH2O |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Agate Formula: SiO2 |
| ⓘ Quartz var. Amethyst Formula: SiO2 |
| ⓘ Quartz var. Carnelian Formula: SiO2 |
| ⓘ Quartz var. Chalcedony Formula: SiO2 |
| ⓘ Quartz var. Citrine Formula: SiO2 |
| ⓘ Quartz var. Iris Agate Formula: SiO2 |
| ⓘ Quartz var. Moss Agate Formula: SiO2 |
| ⓘ Quartz var. Plume Agate Formula: SiO2 |
| ⓘ Wulfenite ? Formula: Pb(MoO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz var. Agate | 4.DA.05 | SiO2 |
| ⓘ | var. Amethyst | 4.DA.05 | SiO2 |
| ⓘ | var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | var. Citrine | 4.DA.05 | SiO2 |
| ⓘ | var. Moss Agate | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | var. Iris Agate | 4.DA.05 | SiO2 |
| ⓘ | var. Carnelian | 4.DA.05 | SiO2 |
| ⓘ | var. Plume Agate | 4.DA.05 | SiO2 |
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
| ⓘ | var. Precious Opal | 4.DA.10 | SiO2 · nH2O |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Wulfenite ? | 7.GA.05 | Pb(MoO4) |
| Group 9 - Silicates | |||
| ⓘ | Anorthite | 9.FA.35 | Ca(Al2Si2O8) |
| ⓘ | var. Labradorite | 9.FA.35 | (Ca,Na)[Al(Al,Si)Si2O8] |
| Unclassified | |||
| ⓘ | 'Amber' ? | - | |
| ⓘ | 'Bloodstone' | - | SiO2 |
List of minerals for each chemical element
Other Databases
| Link to USGS MRDS: | 10085824 |
|---|
Mindat Articles
The Fluorescent Minerals of the Woodward Ranch, Brewster County, Texas by Bruce T. MitchellOther Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Marathon-Marfa BasinsBasin
- Shawnee DomainDomain
- Sierra Madre OrientalWide Rift
- Tascotal BasinBasin
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Woodward Ranch, Alpine, Brewster County, Texas, USA