the.com/siderite
iron ore that fizzes in acid and once arrived from space, freezing fire into rock
means Siderite is a mineral made of iron carbonate (FeCO3), an iron ore that effervesces in acid — and the same name is also used for a meteorite composed mainly of iron and nickel.
from From Greek 'sideros,' meaning iron, the root behind a small family of iron-flavored words (think 'siderophile,' iron-loving). The '-ite' is the standard mineral-naming suffix, marking it as a stone or ore. The double sense is fitting: 'sideros' itself may carry a whisper of the sky, since some scholars suspect early iron reached people not from the ground but from iron-rich meteorites — heaven-metal worked before anyone could smelt the ore — which is why the word for iron and the word for an iron meteorite share the same ancient stem.
- iron heart
- Iron carbonate, FeCO3, nearly half iron by weight
- acid test
- Bubbles slowly in warm acid, betraying its carbonate soul
- banded past
- Built ancient iron formations before Earth had oxygen
- meteor cousin
- Iron meteorites are also called siderites
- sneaky weight
- Surprisingly heavy for its dull brown look
iron carbonate ore deposits — major iron ore in lorraine, france (20% of european production historically)
siderite meteorite — gibeon meteorite in namibia, iron meteorite that fell ~80,000 years ago