Flat Rock Quarry, Stone Mountain-Lithonia Mining District, DeKalb County, Georgia, USAi
| Regional Level Types | |
|---|---|
| Flat Rock Quarry | Quarry |
| Stone Mountain-Lithonia Mining District | Mining District |
| DeKalb County | County |
| Georgia | State |
| USA | Country |
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Latitude & Longitude (WGS84):
33° 48' 49'' North , 84° 8' 29'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Stone Mountain | 6,109 (2017) | 2.7km |
| Mountain Park | 11,554 (2011) | 3.6km |
| Pine Lake | 763 (2017) | 6.4km |
| Redan | 33,015 (2011) | 7.7km |
| Tucker | 27,581 (2011) | 8.3km |
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 |
|---|---|---|
| Georgia Mineral Society, Inc. | Norcross, Georgia | 16km |
| Cobb County Gem and Mineral Society | Marietta, Georgia | 41km |
Mindat Locality ID:
72539
Long-form identifier:
mindat:1:2:72539:7
GUID (UUID V4):
5dda7855-cd0e-439b-b73b-5b2cb70f28b9
There are two quarries on the property, a large one on the north, and a smaller one on the south. The rock in both openings is a medium-grained muscovite granite with small pink garnets scattered throughout. A faint flowage foliation trends approximately N45Β°W and varies in dip from 10Β° to 40Β°NE. Several steeply dipping faults on the northwest side of the opening are coated with light green damourite.
In the vicinity of the faults tourmaline clusters are abundant, and on the southwest side of the quarry numerous garnet-bearing muscovite inclusions are common. A yellow-green coating of uranophane is found on many of the horizontal sheeting planes.
In the vicinity of the faults tourmaline clusters are abundant, and on the southwest side of the quarry numerous garnet-bearing muscovite inclusions are common. A yellow-green coating of uranophane is found on many of the horizontal sheeting planes.
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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
3 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 'Garnet Group' Formula: X3Z2(SiO4)3 |
| β Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| β Muscovite var. Damourite Formula: KAl2(AlSi3O10)(OH)2 |
| β Opal Formula: SiO2 · nH2O |
| β Opal var. Opal-AN Formula: SiO2 · nH2O |
| β 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z |
| β Uranophane Formula: Ca(UO2)2(SiO3OH)2 · 5H2O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| β | Opal var. Opal-AN | 4.DA.10 | SiO2 Β· nH2O |
| β | 4.DA.10 | SiO2 Β· nH2O | |
| Group 9 - Silicates | |||
| β | Uranophane | 9.AK.15 | Ca(UO2)2(SiO3OH)2 Β· 5H2O |
| β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| β | var. Damourite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| Unclassified | |||
| β | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
| β | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Opal var. Opal-AN | SiO2 · nH2O |
| H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | β Opal | SiO2 · nH2O |
| H | β Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| H | β Muscovite var. Damourite | KAl2(AlSi3O10)(OH)2 |
| B | Boron | |
| B | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| O | Oxygen | |
| O | β Opal var. Opal-AN | SiO2 · nH2O |
| O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | β Opal | SiO2 · nH2O |
| O | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| O | β Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| O | β Muscovite var. Damourite | KAl2(AlSi3O10)(OH)2 |
| O | β Garnet Group | X3Z2(SiO4)3 |
| Al | Aluminium | |
| Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | β Muscovite var. Damourite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | β Opal var. Opal-AN | SiO2 · nH2O |
| Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | β Opal | SiO2 · nH2O |
| Si | β Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| Si | β Muscovite var. Damourite | KAl2(AlSi3O10)(OH)2 |
| Si | β Garnet Group | X3Z2(SiO4)3 |
| K | Potassium | |
| K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | β Muscovite var. Damourite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | β Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| U | Uranium | |
| U | β Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
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References
