Okay.. Yesterday i found an Invisibility Potion... I was just wondering on how do I make it? What ingredients do i deed?

I already have a Vampire Dust ingredient.. It makes me invisible for like three seconds when i eat it. Is it one of the ingredients to make an Invisibility Potion?


Other questions

Few days ago I found an Unusual Gem. Erms what is it for? Does it do anything or is it just a pretty but useless item to put on a display? I have just one. Are there any more? If yes then where I can find them mostly?

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While reading some of the topics on here I noticed few posts about people marrying other characters in Skyrim. Is it possible? If yes then how do I do it? I'm a Khajiit. Do i jave to find another Khajiit or do i marry anyone I want? I really need help on that one.
Yup I'm new to Skyrim.

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Where do I buy more Spells? I looked everywhere and all the shops (i went to) have the spells I already learned. Where I can find new ones? Do i need to get to the higher level to find them or what? I'm stuck

Vampire Dust's primary affect is Invisibility. But you'll need good Alchemy to make a decent potion.

Khajiit marriage isn't possible, because pretty much the only 'Jiit you'll see are traders and Kesh the Clean at Peyrite's Shrine. There's no dialogue for them either if you install a mod.

Get spells from Jarl's mages or the College in Winterhold.

Edit: Unusual Gem is a stone of Barenziah. Get it reviewed by Vex or Maul at the Thieve's Guild.

1. The only way to find out what ingredients you need to make an invisibilty potion, or any potion for that matter, and without referring to external sources is either by trial and error or buying the recipe from a merchant.
All ingredients have 4 effects. Only the first one is revealed when you eat it. The only way to uncover the remaining 3 effects is by discovering them as you combine them to make potions (trial & error)

2. Refer to your quest journal. It'll tell you what to do with the gem.

3. Marriage - don't know the answer

4. Spells - buy from mages who sell stuff, like the ones you find in the Jarl's palaces. I think the spells they sell are levelled; you should be able to buy better ones as you progress. General merchants sell spells too but I think they are low level throughout the game.

Thank you so much for answering my questions
Your answers are very helpful!
Thanks again

If you plan to skill up Alchemy, there are perk points you can spend which enable you to discover all of the properties of ingredients by eating them. Using perk points to unlock ingredient uses is probably not an efficient use of your finite perk points, however.

Ingredients that have Invis:
Vampire Dust
Nirnroot & Crimson Nirnroot
Chaurus Eggs
Ice Wraith Teeth
Lunar Moth

To start on the road to marriage you need to visit the Temple of Mara in Riften. There are a lot of NPCs to marry, but you will need to do quests, ot interact with them in some way, like hiring them in order to make them eligible for marriage. The priests and priestess of Mara in Riften will also have other quests for you, but the marriage one will involve wearing an Amulet of Mara.

http://209.46.18.232/wiers.us/skyalc/workbench.php?recipes_tab&show=results&23 (Actually, I think maybe the first one is a poison that has the side effect of invisibility.)

Including a third ingredient can get you other useful effects, but produces http://209.46.18.232/wiers.us/skyalc/workbench.php?recipes_tab&show=results&25, even if you exclude harmful effects (to ensure you don't get a poison).