This included quartz contains the mineral Hollandite, which is a barium manganese oxide. This manifests within the quartz in black or deep-grey clumps, dots or stars to form rayed star-like shapes with few or many arms. Often the quartz is milky or slightly opaque, as most material is found in Madagascar, where the quartz tends (externally) to be not very clear. This crystal may also be known as "Star Quartz" or "Spider Quartz".
For me these crystals have an unusual resonance that is rather "off-planet", and as such is a good choice for helping us connect with our ET space brothers and sisters, and with those Ancient Earth civilisations that are rooted in the Stars. The rayed nature of the inclusions, which radiate out from a central point, also suggests that this crystal can support our exploration of all aspects of our Self, in not just this life but the myriad others we have had (and will have). Thus it can be useful to help us in knowing and following our Life Path with more confidence and ease, and will reinforce our innate knowing that life is eternal, and solidifies our hope that physical death is merely that.