Memory extraction spell

The Memory Extraction Spell was used to remove single, specific memories from one's own mind and place them in a pensieve or a flask for storage or if they wish to see the memory again. The incantation for this spell is unknown and it is unknown if it has a incantation.

Usage
When witches and wizards who have memories that they either wish to see more than once or memories that they cannot stand to think about again they remove it by placing the tip of their wand to their temple, then they slowly pull the tip away and bringing a long, silver strand with it. The witch or wizard would then take the removed memory and store it in a flask for storage (or for easy reach to put into a pensive) or they would store it in a pensive to revisit the memory.

Behind the Scenes

 * As seen in the film adaptions, the extraction of memories can be painful at times as this was shown by Professors Dumbledore and Slughorn who both at least once had facial expressions as if they were having head pain when they extracted a memory.
 * In Order of the Phoenix, Dumbledore loans his pensive to Professor Snape who used it to store his Worst Memory of him being constantly bullied by the Marauders and calling his life long friend and true love, Lily Evans a "Mudblood".