What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
American Incorporated Anorthosite batholith berlite billion years ago Boulder Cap Rock Quartz carat central Laramie Range chromian diopside Colorado Colorado-Wyoming state line concentrate Cortex Creek deeply eroded Devonian diabasic diabasic dikes diameter diamond fragments diatremes dike systems diopside emplacement feet Figure Fountain Formation Front Range geologic map Geological Survey Glahn grease table Green Mountain pipe Green River Basin Hausel hydrofluoric acid Inner Cap Rock Iron Mountain District Iron Mountain kimberlites kimber kimberlite magma kimberlite occurrences Kimberlite Province known kimberlites lamproites Line District lite occurrences located M.E. McCallum McCallum and Eggler McCallum and Mabarak Medicine Bow Mountains ments metamorphic Mississippian paleoplacers Paleozoic Peterman picro-ilmenite Placer diamonds Precambrian Precambrian diabasic Puckett Quartz Monzonite Radichal kimberlite Rock Quartz Monzonite Sheep Rock area sieve stream sediment sampling structure surface tension Survey of Wyoming tain District Tertiary sedi tested for diamonds Trail Creek facies trend trict Virginia Dale Woodzick Wyoming portion xenoliths