Blood pebbles

From LSWiki

   This is several black hematite pebbles.  This is a set of blood pebbles, a form
   of symbiotic armour.  Numerous small pebbles are embedded in the owner's flesh,
   enchanted so as to draw power from the magick in hir blood and channel this energy
   for defense.  Implanting the pebbles is a simple, if excruciating, process. 
   Removing them once implanted requires exotic procedures.  It is permeated by a dim
   shimmering radiance.  You estimate its value at about one thousand five hundred
   gold.  
   It is in perfect condition.  
   It is intermediate in size, and looks just about right to fit you.  It looks
   about twenty-one dimins tall, about six and three tenths dimins wide, about two and
   a tenth dimins long, and less than a twentieth of a dimin thick.

Notes

• This works as epidermal armor, implanted under the skin of the user. If the user loses a limb, there may be consequences as the pebbles are forcibly de-implanted.
• While implanted, this provides some armor, as well as a +200 bonus to Metal Affinity
• Blood pebbles are considered ferrous for the purpose of iron vulnerabilities, and as such it is not recommended to put it into your body if you are vulnerable to such metals.
• These are occasionally obtainable by searching a certain skeleton in Terrace.