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Oxford area talc deposit, Oxford, Llano County, Texas, USAi
Regional Level Types
Oxford area talc depositDeposit
OxfordHamlet
Llano CountyCounty
TexasState
USACountry

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Latitude & Longitude (WGS84):
30° 37' 49'' North , 98° 42' 33'' West
Latitude & Longitude (decimal):
30.63021,-98.70923
GeoHash:
G#: 9v3y3b41u
GRN:
N21W61
Type:
Deposit
Köppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Llano3,341 (2017)14.7km
Kingsland6,030 (2011)25.9km
Sunrise Beach Village731 (2017)28.8km
Buchanan Dam1,519 (2011)29.2km
Highland Haven452 (2017)30.1km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Fredericksburg RockhoundsFredericksburg, Texas42km
Mindat Locality ID:
42313
Long-form identifier:
mindat:1:2:42313:4
GUID (UUID V4):
0
Other/historical names associated with this locality:
Oxford area


A talc occurrence located 2.9 km (1.8 miles) N10W of Oxford (estimated within 5 seconds), on private land.

Mineralization is a talc deposit (Mineral occurrence model information: Model code: 20; USGS model code: 8f; Deposit model name: Ultramafic hosted magnesite), hosted in the Packsaddle Schist and gneiss. Talc lenses occur along contact between serpentinite and schist or gneiss. Associated rocks include Neoproterozoic serpentinite.

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Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


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!

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Alphabetical List Tree Diagram

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘQuartz
var. Amethyst		4.DA.05SiO2
ⓘ4.DA.05SiO2
Group 9 - Silicates
ⓘAnthophyllite9.DD.05◻{Mg2}{Mg5}(Si8O22)(OH)2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘTalc9.EC.05Mg3Si4O10(OH)2
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
OOxygen
Oⓘ Quartz var. AmethystSiO2
Oⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ QuartzSiO2
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
MgMagnesium
Mgⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
SiSilicon
Siⓘ Quartz var. AmethystSiO2
Siⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Siⓘ QuartzSiO2
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
CaCalcium
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
FeIron
Feⓘ MagnetiteFe2+Fe23+O4

Other Databases

Link to USGS MRDS:10065163

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

USGS MRDS ID #TC40201.
Barnes, V.E. (1945), Soapstone and Serpentinite in the Central Mineral Region of Texas, in Texas Mineral Resources, University of Texas publication 4301: 55-91.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
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