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Douglass Mine, Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego County, California, USAi
Regional Level Types
Douglass MineMine
Tourmaline Queen Mountain (Pala Mtn; Queen Mtn)Mountain
PalaTown
Pala Mining DistrictMining District
San Diego CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
33° 22' 52'' North , 117° 3' 37'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Rainbow1,832 (2011)8.7km
Temecula112,011 (2017)14.9km
Fallbrook30,534 (2011)17.7km
Hidden Meadows3,485 (2011)18.0km
Valley Center9,277 (2011)18.2km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Fallbrook Gem and Mineral Society, Inc.Fallbrook, California18km
Vista Gem & Mineral SocietyVista, California26km
Palomar Gem & Mineral ClubEscondido, California29km
Mindat Locality ID:
156165
Long-form identifier:
mindat:1:2:156165:7
GUID (UUID V4):
0


Setting:
Located in the NW4 Sec. 23 T9S R2W SBM, at a point around 400 feet northwest of the center of the section survey, approximately 1.5 miles northeast of Pala. The mine workings are within the center portion of the southern half of the Douglass dike, which extends for about 4000 feet along the base of the southeastern side of Tourmaline Queen Mountain, and was developed in the early 1900's.

History:
In 1914, Frederick Merrill reported that the American Lithia and Chemical Company owned a half interest in the Douglass claim, with the remaining interest held by T. A. Blakeley, of San Bernardino.

In 1951, Richard H. Jahns listed the principal output as gem and specimen quality tourmaline and quartz. The mine was considered abandoned by 1958. In 1963, F. H. Weber noted that in addition to the usual pegmatite minerals, honey-yellow to orange-brown crystals of grossularite, and iridescent stains of marcasite occur in the dike.

The land is now managed for the benefit of the Pala Band of Mission Indians by the Bureau of Indian Affairs (BIA).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


9 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Albite var. Cleavelandite
Formula: Na(AlSi3O8)
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
'Feldspar Group'
'Feldspar Group var. Perthite'
Grossular ?
Formula: Ca3Al2(SiO4)3
Description: Unlikely.
Marcasite
Formula: FeS2
Microcline
Formula: K(AlSi3O8)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Quartz
Formula: SiO2
Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Spessartine
Formula: Mn2+3Al2(SiO4)3
'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Marcasite2.EB.10aFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 9 - Silicates
Grossular ?9.AD.25Ca3Al2(SiO4)3
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Elbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Schorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Microcline9.FA.30K(AlSi3O8)
Albite9.FA.35Na(AlSi3O8)
var. Cleavelandite9.FA.35Na(AlSi3O8)
Unclassified
'Feldspar Group'-
'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
'Feldspar Group
var. Perthite'
-

List of minerals for each chemical element

HHydrogen
H ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
LiLithium
Li ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
BBoron
B ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
B SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
B TourmalineAD3G6(T6O18)(BO3)3X3Z
OOxygen
O AlbiteNa(AlSi3O8)
O ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
O GrossularCa3Al2(SiO4)3
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
O SpessartineMn32+Al2(SiO4)3
O TourmalineAD3G6(T6O18)(BO3)3X3Z
O Albite var. CleavelanditeNa(AlSi3O8)
NaSodium
Na AlbiteNa(AlSi3O8)
Na ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Na SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Na Albite var. CleavelanditeNa(AlSi3O8)
AlAluminium
Al AlbiteNa(AlSi3O8)
Al ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Al GrossularCa3Al2(SiO4)3
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Al SpessartineMn32+Al2(SiO4)3
Al Albite var. CleavelanditeNa(AlSi3O8)
SiSilicon
Si AlbiteNa(AlSi3O8)
Si ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Si GrossularCa3Al2(SiO4)3
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Si SpessartineMn32+Al2(SiO4)3
Si Albite var. CleavelanditeNa(AlSi3O8)
SSulfur
S MarcasiteFeS2
KPotassium
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca GrossularCa3Al2(SiO4)3
MnManganese
Mn SpessartineMn32+Al2(SiO4)3
FeIron
Fe MarcasiteFeS2
Fe SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)

Other Regions, Features and Areas containing this locality


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