Hematite (massive) (Haematite)Fe2O3|
Hardness: 5 - 6
Streak: Deep red
Habit: Very fine grained aggregate of red crystals.
Colours: Deep red
| ||Crystal System: Hexagonal|
Reaction with HCl: Unknown
Identification in hand sample:
Deep red streak and earthy lustre are indicative. SG may also be indicative.
Produced by weathering or hydrothermal alteration of iron-bearing minerals. May be found in some syenite, trachyte, granite and rhyolite.
Industrial / ecomonic uses:
Important ore or iron, sometimes used as a gemstone.
May become magnetic when heated.