Olivine is a naturally occurring mineral magnesium iron silicate sourced from Norway with a high melting point and density.

Olivines properties vary depending on the levels of its two main components, forsterite (Fo) and fayalite (Fa). Olivine is named after its olive green colour.

Olivine product uses

Olivine is suitable for a wide range of applications.

Olivine to be used in a variety of applications.

Slag Conditioner

90% of the world's olivine is consumed as a slag conditioner. Olivine is available in various grades for use as a slag former in the blast furnace or as an additive to sinter and pellets. The high MgO content combined with a low loss on ignition makes Olivine a suitable product as a slag conditioner for steel making.

Refractory products

Olivine sand is available in various grades for use in the production of refractory monolithics and mortars.

Foundry sand for casting

Olivine Sand is suitable for use in alkaline resin bonded system and produces a clean surface finish, making it suitable for foundry castings, especially for manganese steel and non-ferrous metals casting. Olivine also has the health and safety advantage of containing no free silica.

EBT tap hole filler for electrical arc furnaces

Using Olivine as a tap hole filler material can achieve opening rates of 97-100%.


As a naturally occurring silica free material of low specific density, Olivine makes a suitable material for blasting. It is suitable for many light blasting applications as well as on stainless steel and aluminium surfaces for coating preparation or removal applications.

Fluidised Beds

Olivine can be used as an additive to fluidised beds or on its own as the sand. Using Olivine within fluidised beds can improve attrition resistance and tar cracking properties.

High Friction Surfacing

Extensive aggregate property testing carried out at an independent testing facilities showed that Olivine is a suitable material for use on walkways, cycle paths and recreational areas as well as other low traffic areas as an anti-skid road surfacing aggregate.

Other uses include gunning, tundish linings, animal feeds and other horticultural applications.

Olivine properties

Physical properties:

Total moisture (%) 0.50 (max)
Bulk density (kg/m3) 1600-1900
pH 8.9-9.5
Hardness (Mohs') 6.5-7.0
PSV 51-60

Chemical properties

Al2O3 0.8
MgO 49.25
SiO2 42.06
K2O 0.07

Contact your local representative to find out more or to request a datasheet.

Olivine standard grades

LKAB Minerals Olivine is available in the following grades as standard:

5-8mm (-8+5mm)
3-5mm (-5+3mm)
1-3mm (-3+1mm)
0-5mm (-1mm)
0-250μm (-60#)
0-150μm (-100#)
0-15μm (-200#)

Other grades are available on request.

Olivine packaging

Our magnesite materials are available in 25kg paper sacks, 1000kg bulk bags or as bulk as standard.

Olivine origins

LKAB Minerals' Olivine originates from Norway.

Olivine toxicology

Magnesite products are inert and non-toxic. Click on the links opposite to download the Material Safety Datasheets.

Please contact us for datasheets on a single grade or further information on our Olivine product range. You can find our sales contact by choosing your country in the upper right expert box of this page.

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Product expert

Vicky Yates
Sales Manager, Refractory Minerals & Olivine

Ask me a question. Contact information.


Safety data sheet

  1. Olivine SDS
  2. More languages upon request.