This ore is a hematite fine ore, which is ideally suited for smelting in the bloomery furnace,
especially for the
production of high-quality (bloomery) steel. The ore has already been crushed and can be
smelted directly in the
bloomery furnace without any further pre-treatment. The ore was not chemically
processed or concentrated /
floated and is extracted with the present composition in open-cast mining. The low content
of steel pests
enables the production of high-quality steels. The slightly increased silicate content favors
the formation of a
thin liquid slag, which is essential for the bloomery furnace process. By adding 30-50g of
lime per kg of ore, the
carburization of the bloom is favored. The addition of soda binds steel pests in the slag and
the steel becomes
cleaner. The ore can be roasted at temperatures of at least 400 degrees before smelting in
order to increase the
yield. However, roasting is not necessary for a successful oven trip.

12 kg of iron ore are sufficient for a smelting with a furnace with the dimensions: lower inner
diameter approx. 32
cm, upper inner diameter approx. 28 cm, inner height approx. 100 cm.

The yield can be up to 40%. With one smelting with 12 kg of ore, up to 4.8 kg of bloomery
material can be obtained.

Attention: The ore is delivered slightly moist. The moisture was taken into account when
weighing. The ore does
not have to be dried before smelting. The ore also loses weight during roasting, as
chemically bound OH groups
(crystal water) evaporate.

On the day of filling 12.65/25,30 kg. Makes 12.05/24,10 kg of dry ore.

Chemical Analysis:

SiO2: 8.65%

Al2O3: 0.68%

CaO: 0.2%

MgO: 0.3%

Mn: 0.088%

TiO2: 0.055%

P: 0.038%

S: <0.002%