I really love my SuperXC Hexagonal Chakra Crystal Bullet Shape Gemstone Pendant Necklaces Pointed Quartz Stone Chain Necklace. I love that they come in a variety of stones especially since I have gotten into crystals now. I purchased the Black Agate and I really love it. The pendant size Hexagonal Pendant is 41 mm in length and 10 mm width. The chain is long enough but you can always add an extender. The stone is sturdy and these stones are hard enough thus they are not easy to break and you can wear them for a very long time.
Mysterious necklaces they can be applied as lucky charms, craft beads, bracelet, key chain etc. and the usages of these pendant necklaces are limited only to your imagination. I recommend trying them out.