Item:Snowflake obsidian cufflinks mounted in silver

snowflake obsidian cufflinks mounted in silver
Look:	A pattern of white crystals is scattered over the surface of the black stone, creating a striking contrast of hues. At the center of each cufflink is an exquisitely etched snow eagle.
Weight:	1 stones
Metal:	Unknown
Appraised Cost:	162,500 Kronars130,000 Lirums <br />117,260 Dokoras <br />162.5 LTBpoints <br />162.5 Tickets <br />162.5 Scrips <br />
Properties:	This is jewelry. This item is worn in a generic slot. This item is a ritual focus.
Dimensions:	1 length x 1 width x 1 height
Sources:	Source is Droughtman's Challenge 444/Incidental loot, Droughtman's Challenge 441/Incidental loot, Droughtman's Challenge 437/Incidental loot, Droughtman's Challenge 433/Incidental loot, Droughtman's Challenge 430/Incidental loot

The obsidian cufflinks has a definite magical pattern, which is apparently a ritual focus.
The focus is currently unattuned.
While the magical nature of the focus is clear enough, you will need to study it more carefully to recollect how they function.

Note: The first use of this focus attunes it to that particular spellbook. So if you use it to cast Perseverance of Peri'el (Protection spellbook), it would then only work for Protection rituals.