 Bismuth ores, wolfram, and arsenopyrite are common associates of the tinstone. These mineralogical data, the usual presence in stanniferous veins of species containing fluorine and boron, and also the alteration of the granite walls, have led to the very...  United States Congressional Serial Set - Sayfa 5871908Tam görünüm - Bu kitap hakkında
 | Geological Survey (U.S.) - 1908 - 734 sayfa
...matter derived from granite; but at Chongkat Pari, in Perak, cassiterite is extracted from limestone, and at Bruseh, Perak, it is found in seams in sandstone....the usual stanniferous type, but only in a dike of eltrolite syenite. Ordinarily the two elements are separated, the boron going to the tourmaline molecules... | |
 | Frank Wigglesworth Clarke - 1908 - 732 sayfa
...matter derived from granite; but at Chongkat Pari, in Perak, cassiterite is extracted from limestone, and at Bruseh, Perak, it is found in seams in sandstone....the usual stanniferous type, but only in a dike of elseolite syenite. Ordinarily the two elements are separated, the boron going to the tourmaline molecules... | |
 | 1908 - 924 sayfa
...frequent constituents. The mica is often, but not invariably, lithia bearing, either ordinary lepidolitc or zinnwaldite. Bismuth ores, wolfram, and arsenopyrite...the usual stanniferous type, but only in a dike of ela?olite syenite. Ordinarily the two elements are separated, the boron going to the tourmaline molecules... | |
 | Frank Wigglesworth Clarke - 1911 - 794 sayfa
...Greisen is essentially & granite in which the feldspars have been transformed into mica and of wlu'ch topaz and tourmaline are frequent constituents. The...the usual stanniferous type, but only in a dike of elseolite syenite. Ordinarily the two elements are separated, the boron going to the tourmaline molecules... | |
 | Geological Survey (U.S.) - 1911 - 836 sayfa
...general belief that tin deposits of the ordinary type have been formed by the injection of vapors canying the two elements above named and also the tin. This...the usual stanniferous type, but only in a dike of elseolite syenite. Ordinarily the two elements are separated, the boron going to the tourmaline molecules... | |
 | Frank Wigglesworth Clarke - 1911 - 792 sayfa
...named and also the tin. Tlu's belief is strengthened by the various syntheses of cassiterite, in wliich boric oxide and chloride or fluoride of tin have taken...the usual stanniferous type, but only in a dike of elseolite syenite. Ordinarily the two elements are separated, the boron going to the tourmaline molecules... | |
 | Frank Wigglesworth Clarke - 1911 - 800 sayfa
...general belief that tin deposits of the ordinary type have been formed by the injection of vapors canying the two elements above named and also the tin. This...syntheses of cassiterite, in which boric oxide and cliloride or fluoride of tin have taken part. The significance of the very rare mineral nordenskioldine,... | |
 | Geological Survey (U.S.) - 1916 - 834 sayfa
...has described the tin deposits of the Kinta Valley, Malay States. He mentions deposits in limestone. transformed into mica and of which topaz and tourmaline...the usual stanniferous type, but only in a dike of elseolite syenite. Ordinarily the two elements are separated, the boron going to the tourmaline molecules... | |
 | Frank Wigglesworth Clarke - 1916 - 836 sayfa
...has described the tin deposits of the Kinta V alley, Malay States. He mentions deposits in limestone. transformed into mica and of which topaz and tourmaline...the usual stanniferous type, but only in a dike of elseolite syenite. Ordinarily the two elements are separated, the boron going to the tourmaline molecules... | |
 | Geological Survey (U.S.) - 1916 - 834 sayfa
...above named and also the tin. This belief is strengthened by the various syntheses of cassiterite, hi which boric oxide and chloride or fluoride of tin...or deposit of the usual stanniferous type, but only hi a dike of elseolite syenite. Ordinarily the two elements are separated, the boron going to the tourmaline... | |
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