 | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | | Report (volume) | | similar to the main part of the body. This type of pegmatite is of limited economic value. About 25 percent...center of the pegmatite. As many as five distinct units, or zones, parallel to the pegmatite wall-rock contact...contact have been noted in an individual pegmatite. In some pegmatites fracture-filling units of quartz...development. Feldspar reserves are adequate to continue mining on the present scale for many years. No beryl deposits...mica of the rock. The average beryl content of pegmatite rock in the Middletown area is probably between |  | | Journal (issue) | | Branch: M. P. Gayton, F.G.A. South Yorkshire & District Branch: M. W. Eldridge, M.B., Ch.B., F.G.A. Examiners:...is best known from the occurrence in the Dundas district of Tasmania, where it attains lengths of up to...crocoite was from the Sverdlovsk area, Beresov district, in the Ural Mountains of the U.S.S.R.; in 1797...The best-known wulfenite comes from the Red Cloud mine in Arizona, though crystals from this area are generally...gem-beryl producing area in Rhodesia is the Miami pegmatite field, situated a few kilometres north, east and |  | | Book (volume) | | Code. Coke, Sir Edward. Collier, Jeremy. Colony. Colorado. Colours, Military. Commerce. Common Order, Book...the procureur du roi, four avocats du roi, and eight substituts, i.e. deputies of the procureur (see...that he was already in old age though only fifty-eight. It was natural, therefore, that he should choose...incorporated town and port of entry in Northumberland county, New Brunswick, Canada, on the Miramichi river...entry of Ontario, Canada, and the capital of Kent county, situated 64 m. S.W. of London, and 11 m. N. of |
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