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Llanite rhyolite occurrence, Llano County, Texas, USAi
Regional Level Types
Llanite rhyolite occurrenceDike
Llano CountyCounty
TexasState
USACountry

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PhotosMapsSearchMineralogy
00908420017272306511774.jpg
Blue Quartz

Llanite rhyolite occurrence, Llano County, Texas, USA
06096130017272029745853.jpg
Blue Quartz

Llanite rhyolite occurrence, Llano County, Texas, USA
03702200017272306513983.jpg
Schist

Llanite rhyolite occurrence, Llano County, Texas, USA
00908420017272306511774.jpg
Blue Quartz

Llanite rhyolite occurrence, Llano County, Texas, USA
06096130017272029745853.jpg
Blue Quartz

Llanite rhyolite occurrence, Llano County, Texas, USA
03702200017272306513983.jpg
Schist

Llanite rhyolite occurrence, Llano County, Texas, USA
00409990017272306521352.jpg
Blue Quartz

Llanite rhyolite occurrence, Llano County, Texas, USA
06096130017272029745853.jpg
Blue Quartz

Llanite rhyolite occurrence, Llano County, Texas, USA
Latitude & Longitude (WGS84):
30° 53' 20'' North , 98° 39' 20'' West
Latitude & Longitude (decimal):
30.88889,-98.65556
GRN:
N21W61
Type:
Dike
Köppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Llano3,341 (2017)14.5km
Buchanan Lake Village692 (2011)20.1km
Buchanan Dam1,519 (2011)27.1km
Kingsland6,030 (2011)32.8km
San Saba3,030 (2017)34.6km
Mindat Locality ID:
223196
Long-form identifier:
mindat:1:2:223196:2
GUID (UUID V4):
0


Roadcut on Texas State Highway 16, approximately 17 km (6 miles) north of town of Llano, featuring rhyolite ('llanite'') containing blue quartz phenocrysts.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List


1 valid mineral.

Rock Types Recorded


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Alphabetical List Tree Diagram

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘvar. Blue Quartz4.DA.05SiO2
Unclassified
ⓘ'K Feldspar
var. Adularia'		-KAlSi3O8
ⓘ''-

List of minerals for each chemical element

OOxygen
Oⓘ K Feldspar var. AdulariaKAlSi3O8
Oⓘ QuartzSiO2
Oⓘ Quartz var. Blue QuartzSiO2
AlAluminium
Alⓘ K Feldspar var. AdulariaKAlSi3O8
SiSilicon
Siⓘ K Feldspar var. AdulariaKAlSi3O8
Siⓘ QuartzSiO2
Siⓘ Quartz var. Blue QuartzSiO2
KPotassium
Kⓘ K Feldspar var. AdulariaKAlSi3O8

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

Zolensky, Michael E., Sylvester, Paul J., Paces, James B. (1988) Origin and significance of blue coloration in quartz from Llano rhyolite (llanite), north-central Llano County, Texas. American Mineralogist, 73 (3-4) 313-323
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