Limonite & Marcasite Natural Mineral From The White Desert(farafra Oasis) Egypt
Size-
3cm x 2.2cm x 1.9cm
Weight-
18g
You will receive the item in the photo
Limonite and Marcasite differ fundamentally. Limonite is a mixture of hydrous iron oxides lacking a true Crystal system,whereas Marcasite is a distinct iron sulfide mineral with an orthorhombic crystal system.
Limonite:
Mineral class- Oxide/Hydroxide (mixture of minerals like goethite lepidocrocite and hematite)
Crystal system- Amorphous/earthy (no true distinct crystal structure)
Rock formation- forms as a secondary mineral via weathering or hydration of iron-rich precursors (magnetite hematite and pyrite ) or precipitates in bogs,soils and sedimentary environments.
Marcasite-
Mineral class- sulfide
Crystal system- Orthorhombic (often forming tabular,bipramidal or cockscomb twinned crystals.
Rock formation inside volcanic- commonly precipitates in low temperature,acidic sedimentary settings (such as shakes,limestone and chalk layers) and low temperature hydrothermal veins.
