Dolomitic limestones of the Middle Devonian Cedar Valley Formation are exposed at Pint\u27s Quarry. The mineralized vugs contain well developed crystals of barite, calcite, fluorite, galena, marcasite, quartz, pyrite, and sphalerite
Within the limits of Webster County are found a number of interesting minerals. The following notes ...
For convenience the flint beds of the Burlington limestones are usually separated into two divisions...
Recent quarry operations at Glory (N. E. ¼ Sec. 36 Spring Creek Twp., Black Hawk County, about 6 mil...
Dolomitic limestones of the Middle Devonian Cedar Valley Formation are exposed at Pint\u27s Quarry. ...
Pyrite-Quite recently there have been obtained from limestone cavities in Lee County some small but ...
Author Institution: Department of Geology, Miami UniversityCalcite is by far the most abundant miner...
Author Institution: Department of Geology, Miami UniversityTwo sulfate minerals, barite and celestit...
Mineral inclusions found in geodes from the Warsaw formation of southeastern Iowa are described. The...
Operations at the Linwood Mine in Scott County, Iowa, have exposed, on two working levels, extensive...
According to the reports of the Iowa, Illinois, and Wisconsin Geological Surveys natural crystals of...
Author Institution: Department of Geology, Miami UniversityThe Devonian rocks at Pugh Quarry have th...
The rocks herein described were analyzed in the chemical laboratory of Cornell College, under the di...
A hydrothermal sulfide mineral deposit is exposed at the Martin-Marietta Quarry (MMQ) near Cedar Rap...
Within the limits of Webster County are found a number of interesting minerals. The following notes ...
For convenience the flint beds of the Burlington limestones are usually separated into two divisions...
Recent quarry operations at Glory (N. E. ¼ Sec. 36 Spring Creek Twp., Black Hawk County, about 6 mil...
Dolomitic limestones of the Middle Devonian Cedar Valley Formation are exposed at Pint\u27s Quarry. ...
Pyrite-Quite recently there have been obtained from limestone cavities in Lee County some small but ...
Author Institution: Department of Geology, Miami UniversityCalcite is by far the most abundant miner...
Author Institution: Department of Geology, Miami UniversityTwo sulfate minerals, barite and celestit...
Mineral inclusions found in geodes from the Warsaw formation of southeastern Iowa are described. The...
Operations at the Linwood Mine in Scott County, Iowa, have exposed, on two working levels, extensive...
According to the reports of the Iowa, Illinois, and Wisconsin Geological Surveys natural crystals of...
Author Institution: Department of Geology, Miami UniversityThe Devonian rocks at Pugh Quarry have th...
The rocks herein described were analyzed in the chemical laboratory of Cornell College, under the di...
A hydrothermal sulfide mineral deposit is exposed at the Martin-Marietta Quarry (MMQ) near Cedar Rap...
Within the limits of Webster County are found a number of interesting minerals. The following notes ...
For convenience the flint beds of the Burlington limestones are usually separated into two divisions...
Recent quarry operations at Glory (N. E. ¼ Sec. 36 Spring Creek Twp., Black Hawk County, about 6 mil...