Siderite

Siderite – Fe(CO₃)

Elements: Iron, Carbon, Oxygen

Class: Carbonates

Crystal System: Hexagonal

Hardness: 3.5-4.5

Fluorite

Talc (1)Diamond (10)

Softer than glass. A steel knife scratches it.

Origin: Allevard, Isere – France History: Ex Eric Asselborn Collection

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