Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

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

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
33° 23' 11'' North , 117° 3' 39'' West
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Rainbow1,832 (2011)8.5km
Temecula112,011 (2017)14.4km
Fallbrook30,534 (2011)17.7km
Hidden Meadows3,485 (2011)18.5km
Bonsall3,982 (2011)18.7km
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, California27km
Palomar Gem & Mineral ClubEscondido, California30km
Mindat Locality ID:
156167
Long-form identifier:
mindat:1:2:156167:1
GUID (UUID V4):
0


Setting:
Located in the N2NE4NW4 Sec. 23 T9S R2W, about 1.75 miles north-northeast of Pala, the workings are situated at the base of the eastern slope of Tourmaline Queen Mountain, along the extreme northern end of the Douglass pegmatite dike, adjacent to the Trujillo Canyon road (Salmons Canyon) near the now wild eucalyptus grove, originally planted along the sides of the roadway beginning at the entrance to Salmons City.

History:
The North Douglass prospect was described in 1947 by Edward R. Swoboda as pegmatite between 4 to 7 feet thick that had been exposed in an open cut measuring 10 x 6 x 4 feet, heading south along the slope of the mountain. The pegmatite here was described as mainly graphic granite and sprays of muscovite mica, with local masses of quartz and quartz with blocky microcline showing as segments of core zone. Garnet and schorl were reported in the quartz. A good amount of adjacent float fragments including fine to coarse grained lepidolite with quartz and cleavelandite, together with crystals of gem-quality pink, blue and green tourmaline, suggests the presence of pockets within the dike.

The claim was considered abandoned by 1958, and 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


7 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Albite var. Cleavelandite
Formula: Na(AlSi3O8)
Almandine
Formula: Fe2+3Al2(SiO4)3
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
'Lepidolite'
Microcline
Formula: K(AlSi3O8)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Quartz
Formula: SiO2
Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
'Tourmaline var. Indicolite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
'Tourmaline var. Rubellite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
'Tourmaline var. Verdelite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 9 - Silicates
Almandine9.AD.25Fe2+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
'Tourmaline
var. Indicolite'
-A(D3)G6(T6O18)(BO3)3X3Z
'Lepidolite'-
'Tourmaline
var. Rubellite'
-A(D3)G6(T6O18)(BO3)3X3Z
''-AD3G6 (T6O18)(BO3)3X3Z
'var. Verdelite'-A(D3)G6(T6O18)(BO3)3X3Z

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 Tourmaline var. IndicoliteA(D3)G6(T6O18)(BO3)3X3Z
B Tourmaline var. RubelliteA(D3)G6(T6O18)(BO3)3X3Z
B SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
B TourmalineAD3G6 (T6O18)(BO3)3X3Z
B Tourmaline var. VerdeliteA(D3)G6(T6O18)(BO3)3X3Z
OOxygen
O AlbiteNa(AlSi3O8)
O AlmandineFe32+Al2(SiO4)3
O ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
O Tourmaline var. IndicoliteA(D3)G6(T6O18)(BO3)3X3Z
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O Tourmaline var. RubelliteA(D3)G6(T6O18)(BO3)3X3Z
O SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
O TourmalineAD3G6 (T6O18)(BO3)3X3Z
O Tourmaline var. VerdeliteA(D3)G6(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 AlmandineFe32+Al2(SiO4)3
Al ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Al Albite var. CleavelanditeNa(AlSi3O8)
SiSilicon
Si AlbiteNa(AlSi3O8)
Si AlmandineFe32+Al2(SiO4)3
Si ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Si Albite var. CleavelanditeNa(AlSi3O8)
KPotassium
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
FeIron
Fe AlmandineFe32+Al2(SiO4)3
Fe SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)

Other Regions, Features and Areas containing this locality


This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 4, 2026 03:14:41 Page updated: August 19, 2025 01:11:28
Go to top of page