Barite (Baryte) interlayered with calcite, Culberson County, Texas
Mineral: Barite (Baryte) interlayered with Calcite Location: Seven Heart Gap Mine (Lat: 31.25517, Long: -104.4875) County: Culberson County, Texas Chemical Formula: Barite - BaSO4, Calcite - CaCO3 Crystal System: Barite - Orthorhombic Specimen Size: 18 x 10.5 x 1.5 cm Specimen Weight: 696 grams Other interesting facts: Information on the Seven Heart Gap Mine can be found in : 1) Kyle, J. Richard. The barite industry and resources of Texas. Bureau of Economic Geology, University of Texas at Austin, 1994. 2) Kyle, J.R., ed., 1990, Industrial mineral resources of the Delaware Basin, Texas and New Mexico: Soc. Econ. Geol., Guidebook Series, v. 8, 203 p. Also, 3) PRICE, J. G., HENRY, C. D., AND STANDEN, A. R., 1983, ANNOTATED BIBLIOGRAPHY OF MINERAL DEPOSITS IN TRANS-PECOS TEXAS: BUREAU OF ECONOMIC GEOLOGY (TEXAS), MINERAL RESOURCE CIRCULAR NO. 73, 108 P.UNIV TEX PUB 4301, P. 106-108.
Calcite (curved crystal morphology), Presidio County, Texas
Mineral: Calcite (curved crystal morphology) labeled JM01-01 Location: Shafter District County: Presidio County, Texas Chemical Formula: CaCO3 Crystal System: Trigonal Specimen Size: 13.5 x 7 x 9 cm Specimen Weight: (?) grams, need to weigh Other interesting facts: details are documented in J.A. Head MSc thesis at Univ. Texas (2002)
Gypsum, Nodular ('chicken wire'), Gillespie County, Texas
Mineral: Gypsum Location: Temple-Inland Quarry (north of Fredericksburg) County: Gillespie County, Texas Chemical Formula: CaSO4· 2H2O Crystal System: Monoclinic Specimen Size: need to measure Specimen Weight: need to weigh Specimen in the private collection of Professor J. Richard Kyle, Jackson School of Geosciences, the University of Texas at Austin. Other interesting facts: Occurence in Cretaceous Kirschberg Evaporite Member of Edwards Formation
Talc (pink), Hudspeth County, Texas
Mineral: Talc Location: Allamoore Talc District County: Hudspeth County, Texas Chemical Formula: Mg3Si4O10(OH)2 Crystal System: Triclinic Moh's Hardness: 1 Specimen Size: 13.5 x 15 x 4.5 cm Specimen Weight: 2.64 kilograms Produced from 1952 to-date for use in the paint industry.
Barite (Baryte) layered with Calcite, Culberson County, Texas
Mineral: Barite (Baryte) interlayered with Calcite Location: Seven Heart Gap Mine (Lat: 31.25517, Long: -104.4875) County: Culberson County, Texas Chemical Formula: Barite - BaSO4, Calcite - CaCO3 Crystal System: Barite - Orthorhombic Specimen Size: 24.5 x 13.7 x 2.4 cm Specimen Weight: 1.6 kilograms Other interesting facts: Information on the Seven Heart Gap Mine can be found in : 1) Kyle, J. Richard. The barite industry and resources of Texas. Bureau of Economic Geology, University of Texas at Austin, 1994. 2) Kyle, J.R., ed., 1990, Industrial mineral resources of the Delaware Basin, Texas and New Mexico: Soc. Econ. Geol., Guidebook Series, v. 8, 203 p. Also, 3) PRICE, J. G., HENRY, C. D., AND STANDEN, A. R., 1983, ANNOTATED BIBLIOGRAPHY OF MINERAL DEPOSITS IN TRANS-PECOS TEXAS: BUREAU OF ECONOMIC GEOLOGY (TEXAS), MINERAL RESOURCE CIRCULAR NO. 73, 108 P.UNIV TEX PUB 4301, P. 106-108.
Frac Sand, McCulloch County, Texas
Mineral: Proppant Frac Sand (SiO2) Location: Fairmont Santrol mine in Voca County: McCulloch County, Texas Chemical Formula: Quartz Sand (SiO2) Other interesting facts: Details in: Kyle, J. R., and E. F. McBride. "Geology of the Voca frac sand district, western Llano uplift, Texas." Proceedings of the 48th Annual Forum on the Geology of Industrial Minerals: Arizona Geological Survey Special Paper. Vol. 9. 2014.
Endlichite, Arsenovanadinite, Descloizite, Presidio County, Texas
Minerals Endlichite, Arsenovanadinite, Descloizite Location: Shafter Mine (Rio Grande Mining), Shafter District County: Presidio County Specimen size: 16x16x12 cm Specimen weight: 2.8 kilograms This specimen was recently collected (2013) from the new Rio Grande Mining workings.
Core Photograph - Sample DMLZi7L3-02-119
Used focus stacking to improve focus across sample Assume that this is not from Texas.
Quartz crystal cluster, location unknown.
Specimen from Dr. J. Richard Kyle collection.
Celestine (Celestite) blue covered with Barite (Baryte), Val Verde County, Texas
Mineral: Celestine (Celestite) and Barite (Baryte) Location: Pandale County: Val Verde County, Texas Chemical Formulas: SrSO4 and BaSO4 (sulfates) Crystal System: both are Orthorhombic Specimen Size: 10 x 8 x 3 cm Specimen Weight: 925 grams Other interesting facts can be found in: Kyle, J. R., 1994, The barite industry and resources of Texas: Univ. Texas, Bur. Econ. Geol., Austin, Mineral Resources Circular No. 85, 86 p.
Galena, Shafter District, Presidio County, Texas
Mineral: Galena Location: Presidio Mine, Shafter District County: Presidio County, Texas Chemical Formula: PbS Crystal System: Isometric Specimen Size: 4.5 x 3.2 x 4.5 cm Specimen Weight: 76 grams Other interesting facts: details are documented in J.A. Head MSc thesis at Univ. Texas (2002)
Endlichite, Arsenovanadinite, Descloizite (closeup), Presidio County, Texas
Minerals: Endlichite, Arsenovanadinite, Descloizite Closeup field-of-view 2 centimeters across Location: Shafter Mine (Rio Grande Mining), Shafter District County: Presidio County Specimen size: 16x16x12 cm Specimen weight: 2.8 kilograms This specimen was recently collected (2013) from the new Rio Grande Mining workings.
Vug closeup in Core Sample DMLZi7L3-02-119
Focus stacked to improve focus from surface into vug. Assume that this sample is not from Texas.
Barite (Baryte) brown crystal cluster, Val Verde County, Texas
Mineral: Barite (Baryte) Location: Pandale County: Val Verde County, Texas Chemical Formula: BaSO4 Crystal System: Orthorhombic Specimen Size: 6.5 x 5.5 x 4.5 cm Specimen Weight: 272 grams Other interesting facts: Information on Barite occurrences in Val Verde County found in : 1) Kyle, J. Richard. The barite industry and resources of Texas. Bureau of Economic Geology, University of Texas at Austin, 1994.
Galena, Quartz & Calcite in silicified dolostone, Presidio County, Texas
Galena, Calcite, Quartz in silicified Dolostone Location: Shafter Mine (Rio Grande Mining), Shafter District County: Presidio County, Texas Specimen Size: 8.5 x 12.0 x 10 cm Specimen Weight: 1.39 kilograms This specimen was collected from the new Rio Grande Mining workings in 2013.
Minerals: Endlichite, Arsenovanadinite, Descloizite Closeup field-of-view 3 cm high by 4 cm across Location: Shafter Mine (Rio Grande Mining), Shafter District County: Presidio County Specimen size: 16x16x12 cm Specimen weight: 2.8 kilograms This specimen was recently collected (2013) from the new Rio Grande Mining workings.
Barite (Baryte) blades under shortwave Fluorescent source
Mineral: Barite (Baryte) brown crystal cluster Location: Pandale County: Val Verde County, Texas Chemical Formula: BaSO4 Crystal System: Orthorhombic Specimen Size: 18 x 10.5 x 1.5 cm Specimen Weight: 696 grams Other interesting facts: Information on Barite occurrences in Val Verde County found in : 1) Kyle, J. Richard. The barite industry and resources of Texas. Bureau of Economic Geology, University of Texas at Austin, 1994.
Galena, Calcite & Quartz, Presidio County, Texas
Mineral: Galena in Calcite and Quartz Location: Presidio Mine, Shafter District County: Presidio County, Texas Specimen Size: 15.2 x 12 x 6 cm Specimen Weight: 1.03 kilograms Other interesting facts: details are documented in J.A. Head MSc thesis at Univ. Texas (2002)
Plattnerite, Presidio County, Texas
Mineral: Plattnerite, a Lead Dioxide Location: Presidio Mine, Shafter District County, Presidio County, Texas Chemical Formula: PbO2 Crystal System: Tetragonal (rutile group) Specimen Size: 3 x 2.5 x 3 cm Specimen Weight: 15grams Other interesting facts: details are documented in J.A. Head MSc thesis at Univ. Texas (2002)
