10 BÜCHER, DIE MIT «COQUIMBITE» IM ZUSAMMENHANG STEHEN
Entdecke den Gebrauch von
coquimbite in der folgenden bibliographischen Auswahl. Bücher, die mit
coquimbite im Zusammenhang stehen und kurze Auszüge derselben, um seinen Gebrauch in der Literatur kontextbezogen darzustellen.
1
B066: Interpretation of leached outcrops
THE TRANSITION MINERALS COPIAPITE AND COQUIMBITE Many geologists
are familiar with the formation of golden-yellow copiapite in abundance as a
transitional mineral between pyrite and limonite where seams of semi-massive or
...
(Spencer et aL, 1917; Melhase, 1934d; WMK) COQUIMBITE Fe23*(SO4)3.9H2O
Coquimbite, a relatively rare mineral that is soluble in water, occurs in ore
deposits where pyrite --m has undergone oxidation; it also occurs in hot spring
218 ...
Stephen B. Castor, Gregory C. Ferdock,
2004
3
Geological Survey Professional Paper
Owing to the fine grain of the mineral the refractive indices are known only to lie
between 1.75 and 1.79, and thus compare favorably with the indices of
carphosiderite (0 : 1.82, E: 1.73) ; the indices of coquimbite are 0: 1.53 and E :
1.57. Also ...
4
Coal and Peat Fires: A Global Perspective: Volume 1: Coal - ...
... 2005) Alunogen, anhydrite, coquimbite, godovikovite, millosevichite,
tschermigite, salammoniac, volaite Barite, gypsum, letovicite, mascagnite, sulfur
Alunogen, copiapite, hydrobasaluminite, pyrophyllite, volaite, sulfur Gypsum,
mascagnite, ...
Glenn B. Stracher, Anupma Prakash, Ellina V. Sokol,
2010
5
The American Mineralogist
Coquimbite, Fe2(S04)3 9H20 Stout hexagonal prisms of purple coquimbite up to
half an inch long are abundant in the upper zone of the deposit. The crystals are
modified by large basal pinacoids and small unequally developed pyramidal ...
6
Geological Survey Professional Paper
... silicates : Tremolite Sulphides : Pyrrhotite Sphalerite Chalcopyrite Galena
Supergene minerals: Chalcocite Covellite Cuprite Malachite Copper Limonite
Copiapite Coquimbite Kornelite Romerlte Chalcanthite Pickeringlte Halotrichite
The first ...
Geological Survey (U.S.),
1935
7
Contributions to Mineralogy ...
The relationships of coquimbite and quenstedtite are noteworthy. These minerals
have the composition: Quenstedtite Fe,(S04)»- 10H2O Coquimbite Fe2(S04)2 •
9H20 According to the general sequence relationships of the sulphates, ...
Harvard University. Dept. of mineralogy and petrography,
1937
M. Vonsen, pers. comm., 1917. QUENSTEDTITE. Fe+3(S04)3 • 10H20
COQUIMBITE. Fe+3(S04)3 • 9H20 KORNELITE. Fe+3(S04)3 • 7H20 Amador
County: 1. KorneUte occurs with copiapite and cuprocopiapite at the Newton
mine (SWV4Sec.
CaO Al203 MgO pale violet in color. Within the dacite the coquimbite becomes
coarser and typically occurs surmounting voltaite and roemerite. In this latter
habit, it is difficult' to recognize visually as coquimbite. The material was analyzed
and ...
10
Acta Universitatis Carolinae: Geologica
8, </-spacings of this specimen show a distinct relation to those of coquimbite (
ASTM 19535)). The infrared absorption curve and qualitative spectro- graphic
analysis suggest also the identity with coquimbite. Fe was the only substantial ...