Do you mean the substance that is burnt to give a sweet smell, especially at religious ceremonies ? if yes the ansewr is : بخور= pronounsed as [bakhour ] or لبان= pronounced as [ loban] it has alot of sizes,shapes,smells ,colors,uses and prices . In Islam religion frankincense doesn't use as a part from its rite for pray or something like that. it used as a part of traditions or for its perfume .

The Arabic name of the frankincense is: لبان. It would resemble a dried substance like a powder.

hi im from Oman ,, and Oman is the most famous country which produce frankincense and then we send it to the world, it has many shapes,, they are two type of frankincense one we produce it which contain natural materials and some extra things like oil sugar and etc..... the 2nd one is natural 100% we get it from salalah city at the north of oman country call it "luban" _you can see that by google write "شجرة اللبان في صلاله" means the luban frankincense tree in salalah also you can check this link to see the shape of frankincense in Oman just copy that long link and post it at seach box hope this help http://www.google.com.om/search?q=%D8%A7%D9%84%D8%A8%D8%AE%D9%88%D8%B1+%D8%A7%D9%84%D8%B9%D9%85%D8%A7%D9%86%D9%8A&hl=ar&tbo=u&tbm=isch&source=univ&sa=X&ei=XNfAUJmvEIfMrQe3zYDoDQ&ved=0CDAQsAQ&biw=1366&bih=612