Travis County
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Calcite Crystals on Limestone base, Travis County, Texas
Calcite Locality: Travis County, Texas Calcite is the most stable polymorph of Calcium Carbonate Chemical Formula: CaCO3 Crystal System: Trigonal (Small dogtooth spar and larger scalenohedron and modified scalenohedron crystals) Specimen dimensions: 9 in x 13 in x 7 in tall Specimen Weight: exceeds 10 kg In the Arthur E. Smith Collection, on display at Wheaton College, Wheaton, Illinois.
Strontianite, Travis County, Texas
Locality: Oak Hill (U.S. Hwy 290 and TX 71), Travis County, Texas Strontianite, a rare Strontium carbonate Chemical Formula: SrCO3 (ideal) Crystal Class: Orthorhombic, specimen displays fine acicular crystals Specimen size: 4.5 in across In the Arthur E. Smith Collection, on display at Wheaton College, Wheaton, Illinois.
Celestite, Travis County, Texas
Celestite (or Celestine) a Strontium Sulfate Locality: Travis County, Texas (Bull Creek) Chemical Formula: SrSO4 Crystal System: Orthorhombic Specimen displays classic elongated dipyramidal shape. Specimen size: 3.5 in long x 1.5 in across Specimen weight: 373 grams Shared by the Pulliam Collection (AGMS). Additional Information: Named for its delicate blue color, Celestite is the primary source for strontium, which is used in metal alloys and fireworks. This crystal was found in loose clay along Bull Creek back in the 1960's.
Celestite, Travis County, Texas
Celestite (or Celestine) with scale, a Strontium Sulfate Locality: Travis County, Texas (Bull Creek) Chemical Formula: SrSO4 Crystal System: Orthorhombic Specimen displays classic elongated dipyramidal shape. Specimen size: 3.5 in long x 1.5 in across Specimen weight: 373 grams Shared by the Pulliam Collection (AGMS). Additional Information: Named for its delicate blue color, Celestite is the primary source for strontium, which is used in metal alloys and fireworks. This crystal was found in loose clay along Bull Creek back in the 1960's.
Celestite Crystals, Travis Couny, Texas (Bull Creek)
Celestite (or Celestine) is a Strontium Sulfate Locality: Travis County, Texas (Bull Creek) Chemical Formula: SrSO4 Crystal System: Orthorhombic Specimens display variety of crystal forms, including classic elongated dipyramidal shape. Largest specimen size: 3.5" long x 1.5" across Largest specimen weight: 373 grams Shared by the Pulliam Collection in Texas. Named for its delicate blue color, Celestite is the primary source for strontium, which is used in metal alloys and fireworks. Thess crystals were found in loose clay along Bull Creek back in the 1960's.
Strontianite, replacing Calcite, Travis County, Texas
Locality: U.S. Route 183 and Mopac Expressway (during road construction), Travis County, Texas Strontianite, a rare carbonate where Strontium and Calcite substitute freely Chemical Formula: SrCO3 (ideal) Crystal Class: Orthorhombic Specimen size: 4.5 in across Specimen weight: 224 grams In the Arthur E. Smith Collection, on display at Wheaton College, Wheaton, Illinois.