A lime-soda rock form of mineral, which may give off dust.  Bulk density: 1,667 kg/m3. Non-IMSBC Code information : Grey to smokey black in colour.  Labradorite, by definition, must contain 50-70 percent calcium to 50-30 percent sodium in the calicum/sodium proportions. A calcium-rich feldspar. For more information on feldspar, see "additional information" and separate cargo entry "feldspar lump".
Trade Names (Synonyms)
Anorthosite , Black Moonstone, Labrador Feldspar, Opaline Feldspar, Spectrolite, Silicita, Carnatite.


If you are a member, please login using the orange button at the top of the page to view the full article, or register.

If you are unsure of your membership, wish to change your membership status, or wish to become a member please contact


Got a question or some feedback?

Contact Maritime Information

In order to ensure that the BIMCO cargo database contains updated information as far as possible, we welcome any feedback in the form of comments, response or current information or data regarding a specific cargo.

Email them

IMSBC Code webinar

BIMCO's Ai Cheng Foo presents the IMSBC Code, potential pitfalls and use.

IMSBC Code webinar

A one-hour long webinar session on the IMSBC Code, highlighting two very relevant issues for members; i.e. on “How to carry bulk cargoes safely – a shared risk?” and “ What is it – identifying cargo hazards under the IMSBC Code”.


Chartering help & advice

This section contains a comprehensive source of information and guidance on chartering related matters. You will find invaluable information on many aspects of chartering distilled from our many years’ experience on advising members.