It forms two limited solid solution series, with substitution of manganese leading to rhodochrosite, and with iron, leading to siderite.
32.
On and under the course of the sliding, there are a whole series of smaller and larger deposits of siderite and limonite.
33.
The ammolite within this layer is covered by siderite concretions and is usually cracked this is the " crush " material.
34.
The English species, " E . prestvici ", is known from a handful of good quality fossils preserved inside siderite concrections.
35.
Typical minerals formed at this time include garnet, pyroxene, epidote, chlorine-rich amphiboles, malayaite, vesuvianite, siderite and axinite.
36.
The combination of rapid burial and rapid formation of siderite resulted in excellent preservation of the many animals and plants that ended up in the mud.
37.
Chemically, it is a cadmium sulfide, and occurs as a bright yellow coating on sphalerite or siderite in vugs, deposited by meteoric waters.
38.
It is composed of very pure silica grains and a small amount of the iron mineral siderite in varying proportions, bound with a clay matrix.
39.
Zinc, magnesium and manganese commonly substitute for the iron resulting in the siderite-smithsonite, siderite-magnesite and siderite-rhodochrosite solid solution series.
40.
Zinc, magnesium and manganese commonly substitute for the iron resulting in the siderite-smithsonite, siderite-magnesite and siderite-rhodochrosite solid solution series.
