Iron carbonate of the Calcite group, often yellowish-brown to brown. It's a grounding stone that enhances focus, determination, and practicality, aligning with Earth energies. (An ore of iron).
Yellowish-Brown, Brown, Grey, Greenish, Reddish, White, Colorless, often forms rhombohedral crystals or massive
Siderite is classified as a carbonate mineral mineral which typically crystallizes in the trigonal system. Its chemical formula is FeCO3. Common crystal habits include tabular crystals, often curved; botryoidal to massive.