These are 10mm rose quartz round polished beads on a 15in strand.
Rose quartz is a silicate mineral mass with inclusions of dumortierite, which give the stone the characteristic rosy pink hue, and very rarely a chatoyancy sometimes manifested as asterism (star pattern reflection). They occasionally may be pleochroic, i.e., will change color at different viewing angles in polarized light. Quartz that is well polished will have a comforting smoothness and good skin feel to the stone.
Rose quartz also can be found as crystal points with inclusions of phosphorous. That variety may also be sold as pink quartz, and will occasionally have transparency in some parts of the stone.
Rose quartz has historical significance as the Love Stone and had been used as a focal aide for meditating on compassion, tenderness, or self forgiveness. The stone had been believed to evoke feelings of love, calm clarity, emotional balance, countering traumatic stimuli by returning to a calmer baseline, peace and love in relationships, openness to appreciating the humanities (art, music, literature, performance), imagination, and creativity.
If you happen to be a practitioner of chakra balancing, here’s what Melody's Love Is In The Earth says about rose quartz: