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San Pedro Mine, Hiriart Mountain, Pala, Pala Mining District, San Diego County, California, USAi
Regional Level Types
San Pedro MineMine
Hiriart MountainMountain
PalaTown
Pala Mining DistrictMining District
San Diego CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
33° 22' 44'' North , 117° 2' 17'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Rainbow1,832 (2011)10.7km
Temecula112,011 (2017)16.3km
Aguanga1,128 (2011)17.6km
Valley Center9,277 (2011)17.8km
Hidden Meadows3,485 (2011)18.4km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Fallbrook Gem and Mineral Society, Inc.Fallbrook, California20km
Vista Gem & Mineral SocietyVista, California27km
Palomar Gem & Mineral ClubEscondido, California29km
Mindat Locality ID:
21155
Long-form identifier:
mindat:1:2:21155:7
GUID (UUID V4):
0
Other/historical names associated with this locality:
Pedro Mine


"San Pedro"
—Spanish, meaning "Saint Peter".

Setting:
Located in the N2SE4 Sec. 24 T9S R2W SBM, the mine is on the north flank of Hiriart Mountain. Developed by 4 shallow cuts in the northern part of the Vanderberg pegmatite where the dike strikes north-northwestward, dips moderately west, and is up to 20 feet thick. Gem minerals reported include spodumene (primarily kunzite) pale-green and pink beryl, and pale yellow quartz. Additional minerals are tourmaline, lepidolite, molybdenite, bornite, and large clear crystals of microcline. The White Queen dike also strikes across the property.

History:
The deposit was located by Bernardo Hiriart and Pedro Peiletch in 1902, as northernmost and last of three claims on the mountain made by the two Basque Frenchman between 1901 and 1902. Not long after the date of the San Pedro location, the surrounding vacant public lands were temporarily withdrawn and removed from mineral entry under the United States land and mineral laws pursuant to Secretarial Order dated January 24, 1903. This order was a temporary withdrawal pending acquisition of all private inholdings, including valid existing rights, for the benefit of the Pala Tribe, under Indian tract allotment pursuant to the Act of January 12, 1891.

In 1905, George F. Kunz described the San Pedro workings as 4 cuts along a pegmatite ledge traceable for nearly a mile in length. These cuts were said to produce some kunzite, tourmaline, beryl, and lepidolite. In 1906, Kunz described the San Pedro mine as traversed by the same dike or vein as the Katerina and Vanderberg mines. Recent development of the San Pedro mine was described as a large open cut which showed pink beryl, pink kunzite, green tourmaline, and fine quartz crystals.

The mine was later acquired by Jim R. Fouch, head of the Universal Microphone Company of Inglewood, who reported running into a lot of peach colored beryl. Fouch sold the claim to George A. Ashley in 1947. Ashley then sold the claim to Charlie E. Reynolds of Escondido in 1948. In 1951 Reynolds mined a large pocket which yielded 300 pounds of fine gem spodumene which ranged from colorless to pale pink to pale green. The largest crystal from this pocket measured 11x5.5x1.5 inches.

In 1973, Pala International of Fallbrook acquired the San Pedro mine and began working the deposit. Some of the surface workings were expanded by using a D-8 Caterpillar track-type dozer, and some of the underground workings were extended for short distances.

In the early 1990's the Secretary of the Interior, through the delegation to the Bureau of Land Management (BLM), investigated the bona fides of the mining claim to determine any encumbrance of an allotment application (trust patent) filed by the Bureau of Indian Affairs on behalf of the Pala Tribe on June 19, 1980. The claim was adjudicated and in 1992 it was declared invalid from the beginning, or void ab initio.

In 1997, John Sinkankas reported the largest cut pink beryl from North America is a 400-carat faceted Morganite produced from the San Pedro mine. 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


13 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Beryl
Formula: Be3Al2(Si6O18)
Beryl var. Aquamarine
Formula: Be3Al2Si6O18
Beryl var. Morganite
Formula: Be3Al2(Si6O18)
Bornite
Formula: Cu5FeS4
Hambergite
Formula: Be2(BO3)(OH)
'Lepidolite'
Lithiophilite
Formula: LiMn2+PO4
Ludlamite
Formula: Fe2+3(PO4)2 · 4H2O
Description: Occurs as small patches on lithiophilite.
Microcline
Formula: K(AlSi3O8)
Molybdenite
Formula: MoS2
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Quartz
Formula: SiO2
Quartz var. Citrine
Formula: SiO2
Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Spodumene
Formula: LiAlSi2O6
Spodumene var. Kunzite
Formula: LiAlSi2O6
Tantalite-(Mn)
Formula: Mn2+Ta2O6
'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z
'Tourmaline var. Verdelite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Bornite2.BA.15Cu5FeS4
Molybdenite2.EA.30MoS2
Group 4 - Oxides and Hydroxides
Quartz
var. Citrine
4.DA.05SiO2
4.DA.05SiO2
Tantalite-(Mn)4.DB.35Mn2+Ta2O6
Group 6 - Borates
Hambergite6.AB.05Be2(BO3)(OH)
Group 8 - Phosphates, Arsenates and Vanadates
Lithiophilite8.AB.10LiMn2+PO4
Ludlamite8.CD.20Fe2+3(PO4)2 · 4H2O
Group 9 - Silicates
Beryl
var. Aquamarine
9.CJ.05Be3Al2Si6O18
9.CJ.05Be3Al2(Si6O18)
var. Morganite9.CJ.05Be3Al2(Si6O18)
Schorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Spodumene
var. Kunzite
9.DA.30LiAlSi2O6
9.DA.30LiAlSi2O6
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Microcline9.FA.30K(AlSi3O8)
Albite9.FA.35Na(AlSi3O8)
Unclassified
'Lepidolite'-
'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
'var. Verdelite'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H HambergiteBe2(BO3)(OH)
H LudlamiteFe32+(PO4)2 · 4H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
LiLithium
Li Spodumene var. KunziteLiAlSi2O6
Li LithiophiliteLiMn2+PO4
Li SpodumeneLiAlSi2O6
BeBeryllium
Be Beryl var. AquamarineBe3Al2Si6O18
Be BerylBe3Al2(Si6O18)
Be HambergiteBe2(BO3)(OH)
Be Beryl var. MorganiteBe3Al2(Si6O18)
BBoron
B HambergiteBe2(BO3)(OH)
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 Beryl var. AquamarineBe3Al2Si6O18
O BerylBe3Al2(Si6O18)
O Quartz var. CitrineSiO2
O HambergiteBe2(BO3)(OH)
O Spodumene var. KunziteLiAlSi2O6
O LithiophiliteLiMn2+PO4
O LudlamiteFe32+(PO4)2 · 4H2O
O Tantalite-(Mn)Mn2+Ta2O6
O MicroclineK(AlSi3O8)
O Beryl var. MorganiteBe3Al2(Si6O18)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
O SpodumeneLiAlSi2O6
O TourmalineAD3G6(T6O18)(BO3)3X3Z
O Tourmaline var. VerdeliteA(D3)G6(T6O18)(BO3)3X3Z
NaSodium
Na AlbiteNa(AlSi3O8)
Na SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Beryl var. AquamarineBe3Al2Si6O18
Al BerylBe3Al2(Si6O18)
Al Spodumene var. KunziteLiAlSi2O6
Al MicroclineK(AlSi3O8)
Al Beryl var. MorganiteBe3Al2(Si6O18)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Al SpodumeneLiAlSi2O6
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Beryl var. AquamarineBe3Al2Si6O18
Si BerylBe3Al2(Si6O18)
Si Quartz var. CitrineSiO2
Si Spodumene var. KunziteLiAlSi2O6
Si MicroclineK(AlSi3O8)
Si Beryl var. MorganiteBe3Al2(Si6O18)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Si SpodumeneLiAlSi2O6
PPhosphorus
P LithiophiliteLiMn2+PO4
P LudlamiteFe32+(PO4)2 · 4H2O
SSulfur
S BorniteCu5FeS4
S MolybdeniteMoS2
KPotassium
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
MnManganese
Mn LithiophiliteLiMn2+PO4
Mn Tantalite-(Mn)Mn2+Ta2O6
FeIron
Fe BorniteCu5FeS4
Fe LudlamiteFe32+(PO4)2 · 4H2O
Fe SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
CuCopper
Cu BorniteCu5FeS4
MoMolybdenum
Mo MolybdeniteMoS2
TaTantalum
Ta Tantalite-(Mn)Mn2+Ta2O6

Other Regions, Features and Areas containing this locality


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