A relatively common, black, metallic mineral, magnetite is also one of modern society’s most important iron ores, occurring in a variety of igneous rocks, pegmatites, contact metamorphic …

Magnetite is black or brownish-black with a metallic luster, has a Mohs hardness of 5–6 and leaves a black streak. [7] . Small grains of magnetite are very common in igneous and …

Magnetite: A typical magnetite specimen exhibiting a gray metallic luster. This specimen is approximately 10 centimeters across. What is Magnetite? Magnetite is a very common iron …

Type Mineral Luster Metallic Hardness 6 > Glass Cleavage None Streak Black to Dark Gray Color Black to Dark Gray Miscellaneous Strongly Magnetic

How to identify Magnetite: Learn its key properties (hardness 5.5 - 6.5, Greyish black or iron black color), uses, and meaning. Complete identification guide with photos and detailed information.

Comments: Colorless to white bladed crystals of nordenskiöldine with black magnetite. Location: Pöhla-Tellerhäuser Gallery, Pöhla, Schwarzenberg District, Erzgebirge, Saxony, Germany.

Jul 26, 2025 · Magnetite is a common iron oxide mineral with the chemical formula Fe3O4. It appears opaque black or dark brown, exhibiting a metallic to dull luster. This mineral registers …

Such pseudomorphs are commonly known as Martite, and their appearance may be very similar to regular Magnetite. However, they differ from Magnetite in that they are only weakly attracted …

Color: Black | Steak: Black | Luster: Splendent to dull metallic. Transparency: Opaque. Hardness: 5.5 to 6.5 | Specific Gravity: 5.20. Crystal Forms and Habits: Isometric system. Magnetite …

Magnetite has a metallic luster, a dark gray to black color, a blackish-colored streak, is fairly hard (H=6), has no cleavage, and is moderately heavy for its size.