siderite
苏苏苏岩,苏苏苏
Definitions
- 1
- : Also called chalybite. a common mineral, iron carbonate, FeCO3, usually occurring in yellowish to deep-brown cleavable masses: a minor ore of iron.
- : a meteorite consisting almost entirely of metallic minerals.
Examples
As the crab decayed, surrounded by mud and not much oxygen, that siderite coated the crab’s body, allowing it and its fragile brain structure to be preserved.
Only several environments capable of producing siderite concretions in the rock record have been identified so far, but the sites could be practical targets for future fossil searches.
This siderite is specially interesting on account of its distinctly metallic character.
This is one of the ordinary stony meteorites, and is thus contrasted with the Rowton siderite which we have just been considering.
Carbonate of Iron, or siderite, occurs in a few localities, the ore produced in Ohio being almost wholly of this kind.
When the network of metal is more or less disconnected the meteorite is a meso-siderite.
Chalybite, kal′i-bīt, n. native iron protocarbonate—siderite.