I'll check the mint and eucalyptus, but yes, you can obtain similar effects by mixing two or more substances.
Jasmin is a Taurus / Cancer herb. It helps agaist fears and eases oversensibility too. It's also considered aphrodisiac and helps for good luck.
That's what my book says, that favours dreams and visions, so I guess that if you burn it by night for example you'll probably have a very interesting night. It's used against insomnia, and I think it's also a component is oils for astral travel (I'll check it out this one as well).
