Rootbeer pegmatite, Delmoe Lake area, Boulder Batholith, Jefferson County, Montana, USAi
| Regional Level Types | |
|---|---|
| Rootbeer pegmatite | Diggings (Active) |
| Delmoe Lake area | Area |
| Boulder Batholith | Batholith |
| Jefferson County | County |
| Montana | State |
| USA | Country |
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Latitude & Longitude (WGS84):
45° 59' 37'' North , 112° 21' 9'' West
Latitude & Longitude (decimal):
Type:
Diggings (Active) - last checked 2018
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Butte | 34,190 (2011) | 14.1km |
| Walkerville | 700 (2017) | 14.8km |
| Whitehall | 1,094 (2017) | 24.0km |
| Butte-Silver Bow (Balance) | 33,525 (2013) | 25.7km |
| Basin | 212 (2011) | 31.6km |
Mindat Locality ID:
303751
Long-form identifier:
mindat:1:2:303751:8
GUID (UUID V4):
72429467-48a2-4570-9c0a-cc7238aefa5f
The Rootbeer pegmatite is an advanced, well formed pegmatite that lies in the Delmoe Lake area of the Boulder Batholith, Jefferson County, Montana. The pegmatite is comprised of large aplite/graphic granite outcrops at the base of a hill. The list of minerals found at this locale, is extensive, and includes, but is not limited to: Quartz var. Morion (Smoky Quartz), Microcline Feldspars, Schorl, Rutile, Muscovite, Mica, Topaz, Blue Cleavelandite, Molybdenite, Pyrite, Garnet var. spessartine, Albite, Quartz var. Amethyst. This locality has since been claimed.
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Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
7 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 Albite Formula: Na(AlSi3O8) |
| β Albite var. Cleavelandite Formula: Na(AlSi3O8) |
| β 'Garnet Group' Formula: X3Z2(SiO4)3 |
| β 'K Feldspar' |
| β Molybdenite Formula: MoS2 |
| β Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| β Pyrite Formula: FeS2 |
| βͺ Quartz Formula: SiO2 Habit: Hexagonal Colour: Black Description: Morion (Smokey) Quartz, deep black hexagonal crystals References: |
| β Quartz var. Amethyst Formula: SiO2 |
| β Quartz var. Smoky Quartz Formula: SiO2 |
| β Rutile Formula: TiO2 |
| βͺ Topaz Formula: Al2(SiO4)(F,OH)2 Habit: Orthorhombic Colour: Gold, Yellow, Clear Description: Light Golden colored, Well formed Topaz Crystal References: |
| β 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Molybdenite | 2.EA.30 | MoS2 |
| β | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz var. Amethyst | 4.DA.05 | SiO2 |
| β | 4.DA.05 | SiO2 | |
| β | var. Smoky Quartz | 4.DA.05 | SiO2 |
| β | Rutile | 4.DB.05 | TiO2 |
| Group 9 - Silicates | |||
| β | Topaz | 9.AF.35 | Al2(SiO4)(F,OH)2 |
| β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| β | Albite | 9.FA.35 | Na(AlSi3O8) |
| β | var. Cleavelandite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| β | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
| β | 'K Feldspar' | - | |
| β | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | β Topaz | Al2(SiO4)(F,OH)2 |
| B | Boron | |
| B | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| O | Oxygen | |
| O | β Albite | Na(AlSi3O8) |
| O | β Quartz var. Amethyst | SiO2 |
| O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | β Quartz | SiO2 |
| O | β Rutile | TiO2 |
| O | β Quartz var. Smoky Quartz | SiO2 |
| O | β Topaz | Al2(SiO4)(F,OH)2 |
| O | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| O | β Albite var. Cleavelandite | Na(AlSi3O8) |
| O | β Garnet Group | X3Z2(SiO4)3 |
| F | Fluorine | |
| F | β Topaz | Al2(SiO4)(F,OH)2 |
| Na | Sodium | |
| Na | β Albite | Na(AlSi3O8) |
| Na | β Albite var. Cleavelandite | Na(AlSi3O8) |
| Al | Aluminium | |
| Al | β Albite | Na(AlSi3O8) |
| Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | β Topaz | Al2(SiO4)(F,OH)2 |
| Al | β Albite var. Cleavelandite | Na(AlSi3O8) |
| Si | Silicon | |
| Si | β Albite | Na(AlSi3O8) |
| Si | β Quartz var. Amethyst | SiO2 |
| Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | β Quartz | SiO2 |
| Si | β Quartz var. Smoky Quartz | SiO2 |
| Si | β Topaz | Al2(SiO4)(F,OH)2 |
| Si | β Albite var. Cleavelandite | Na(AlSi3O8) |
| Si | β Garnet Group | X3Z2(SiO4)3 |
| S | Sulfur | |
| S | β Molybdenite | MoS2 |
| S | β Pyrite | FeS2 |
| K | Potassium | |
| K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ti | Titanium | |
| Ti | β Rutile | TiO2 |
| Fe | Iron | |
| Fe | β Pyrite | FeS2 |
| Mo | Molybdenum | |
| Mo | β Molybdenite | MoS2 |
Other Regions, Features and Areas containing this locality
North America
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Great Falls DomainDomain
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