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NW slope Fremont Peak occurrences, San Francisco Mountain, San Franciscan volcanic field (San Francisco Peaks; San Francisco Mts), Coconino County, Arizona, USAi
Regional Level Types
NW slope Fremont Peak occurrencesOccurrence
San Francisco MountainMountain
San Franciscan volcanic field (San Francisco Peaks; San Francisco Mts)- not defined -
Coconino CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
35° 19' 0'' North , 111° 38' 59'' West
Latitude & Longitude (decimal):
35.31667,-111.65000
GeoHash:
G#: 9w28gm4yq
GRN:
N24W66
Type:
Occurrence
KΓΆppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Flagstaff70,320 (2017)13.2km
Kachina Village2,622 (2011)24.7km
Mountainaire1,119 (2011)25.8km
Parks1,188 (2011)27.8km
Munds Park631 (2011)41.3km
Mindat Locality ID:
47998
Long-form identifier:
mindat:1:2:47998:4
GUID (UUID V4):
1d50e999-8419-4279-b151-124815d60d56


Occurrences on the NW slope of Fremont Peak, San Francisco Mountain, about 13.3 km (8.2 miles) N of Flagstaff.

Mineralization is hosted in a riebeckite-soda granite porphyry.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


5 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 Diagram

Detailed Mineral List:

β“˜ Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
Habit: Prismatic
Colour: Very dark brown
Description: Occurs in a riebeckite-soda granite porphyry.
β“˜ Fluorite
Formula: CaF2
Habit: Small cubes
Colour: Pink
Description: Occurs as small cubic crystals and fragments as inclusions in zircon crystals.
β“˜ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Habit: Small, stout, prismatic crystals to 1 x 1.5 mm
Colour: Blue
Description: Occurs in a riebeckite-soda granite porphyry & as larger segregations & filling veinlets in the rock.
β“˜ Topaz
Formula: Al2(SiO4)(F,OH)2
Habit: Imperfect crystals to 0.4 mm long
Description: Occurs in segregations in small amounts.
β“˜ Zircon
Formula: Zr(SiO4)
Habit: Anhedral crystals to 0.4 mm long
Description: Noticeably abundant in segregations in riebeckite-soda granite porphyry.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
β“˜Fluorite3.AB.25CaF2
Group 9 - Silicates
β“˜Zircon9.AD.30Zr(SiO4)
β“˜Topaz9.AF.35Al2(SiO4)(F,OH)2
β“˜Riebeckite9.DE.25β—»[Na2][Fe2+3Fe3+2]Si8O22(OH)2
β“˜Aenigmatite9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]

List of minerals for each chemical element

HHydrogen
Hβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Hβ“˜ TopazAl2(SiO4)(F,OH)2
OOxygen
Oβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Oβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oβ“˜ TopazAl2(SiO4)(F,OH)2
Oβ“˜ ZirconZr(SiO4)
FFluorine
Fβ“˜ FluoriteCaF2
Fβ“˜ TopazAl2(SiO4)(F,OH)2
NaSodium
Naβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Naβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
AlAluminium
Alβ“˜ TopazAl2(SiO4)(F,OH)2
SiSilicon
Siβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Siβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siβ“˜ TopazAl2(SiO4)(F,OH)2
Siβ“˜ ZirconZr(SiO4)
CaCalcium
Caβ“˜ FluoriteCaF2
TiTitanium
Tiβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
FeIron
Feβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Feβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
ZrZirconium
Zrβ“˜ ZirconZr(SiO4)

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate
USA

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

Robinson, Henry H. (1913), The San Franciscan Volcanic Field, AZ, USGS Professional Paper 76: 110-112.
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