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It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Unnamed arroyo, Rio Arriba County, New Mexico, USAi
Regional Level Types
Unnamed arroyoGully
Rio Arriba CountyCounty
New MexicoState
USACountry

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PhotosMapsSearch
01469920017272063777530.jpg
Fluorite

Small Fry prospect, Unnamed arroyo, Rio Arriba County, New Mexico, USA
05140680017272063774179.jpg
Fluorite

Small Fry prospect, Unnamed arroyo, Rio Arriba County, New Mexico, USA
06979180017272063774210.jpg
Fluorite, etc.

Small Fry prospect, Unnamed arroyo, Rio Arriba County, New Mexico, USA
01469920017272063777530.jpg
Fluorite

Small Fry prospect, Unnamed arroyo, Rio Arriba County, New Mexico, USA
05140680017272063774179.jpg
Fluorite

Small Fry prospect, Unnamed arroyo, Rio Arriba County, New Mexico, USA
06979180017272063774210.jpg
Fluorite, etc.

Small Fry prospect, Unnamed arroyo, Rio Arriba County, New Mexico, USA
00941260017272063781109.jpg
Fluorite

Small Fry prospect, Unnamed arroyo, Rio Arriba County, New Mexico, USA
04976700017272063788655.jpg
Fluorite

Small Fry prospect, Unnamed arroyo, Rio Arriba County, New Mexico, USA
Latitude & Longitude (WGS84):
36° 15' 26'' North , 106° 11' 36'' West
Latitude & Longitude (decimal):
36.25738,-106.19341
GRN:
N25W61
Type:
Gully - last checked 2026
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
El Rito808 (2011)9.6km
Abiquiu231 (2011)12.5km
Chili654 (2011)17.4km
LaMadera154 (2017)19.8km
Lyden245 (2011)20.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Los Alamos Geological SocietyLos Alamos, New Mexico42km
Mindat Locality ID:
476282
Long-form identifier:
mindat:1:2:476282:2
GUID (UUID V4):
0


This unnamed arroyo is roughly 1.2 km long by 400 m wide, and is located largely within the Carson National Forest. The arroyo cuts through cemented volcanics (described as "volcanic sandstone and shale" - Bingler, 1968) covered over with alluvium and bounded by sandstones - the volcanics are very soft and erode easily. Macrostrat only shows the alluvium, but there are large exposures of the volcanics and outcrops of the sandstone. The area is shot through with faults and fractures which host calcite (common), zeolites (uncommon), and baryte (rare).

The Small Fry prospect is an outlier, with small fluorite veins (most on the order of 1 cm thick, but some thicker) with minor baryte.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

5 valid minerals.

Rock Types Recorded


Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
ⓘ Baryte
Formula: BaSO4
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
References:
Scott Braley collectionIdentified by tiny minerals: Visual Identification
ⓘ Calcite
Formula: CaCO3
ⓘ Fluorite
Formula: CaF2
ⓘ 'Heulandite Subgroup'
Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
References:
Scott Braley collectionIdentified by tiny minerals: Visual Identification
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
References:
Scott Braley collectionIdentified by tiny minerals: Visual Identification
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
References:
Scott Braley collectionIdentified by tiny minerals: Visual Identification
ⓘ Quartz
Formula: SiO2
References:
Scott Braley collectionIdentified by tiny minerals: Visual Identification
ⓘ 'Stilbite Subgroup'
Formula: M6-7[Al8-9Si27-28O72] · nH2O
References:
Scott Braley collectionIdentified by tiny minerals: Visual Identification

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Group 9 - Silicates
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Heulandite Subgroup'-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Pyroxene Group'-ADSi2O6

List of minerals for each chemical element

HHydrogen
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Hⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ BaryteBaSO4
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Oⓘ QuartzSiO2
Oⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Pyroxene GroupADSi2O6
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluoriteCaF2
NaSodium
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Alⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Siⓘ QuartzSiO2
Siⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Pyroxene GroupADSi2O6
SSulfur
Sⓘ BaryteBaSO4
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ FluoriteCaF2
Caⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
BaBarium
Baⓘ BaryteBaSO4

Localities in this Region

USA

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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

Bingler, Edward C. (1968) Geology and mineral resources of Rio Arriba County, New Mexico. Bulletin 91. New Mexico Bureau of Geology and Mineral Resources 158 pp. doi:10.58799/b-91 pp.131-133
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