Bead - "Stone"

One cent for each strand of loose beads.  I tend to stay away from small size beads.  But the seller claims these to be made of real stone so I gave them a try.  But I am still not sure.

Seller said:
4mm natural Unakite stone Round Small Gemstone Beads sring about 96pcs each string
100pcs 4mm RED AVENTURINE ROUND Gemstone Beads sring
AAA 4mm Natural Green Aventurine round gemstone Beads about 98pcs each string
100pcs Gemstone Round Beads 4mm MOTTLED STONE
AAA 4mm SPECTROLITE LABRADORITE Stone CHARM BEADs about 98pcs each string
4mm pink jade Round Gemstone Loose Beads string about 92pcs each string
Rose Pink Quartz Gemstone Round 8mm round loose Beads string about 48pcs each string
4mm BLUE WHITE SODALITE round Beads string about 92pcs each string
4mm goldstone Gemstone round Loose beads strand sring about 98pcs each string
AAA 6mm Red Picture Jasper Round Gemstone Beads about 64pcs each string
AAA 8mm round Chinese Picture stone gemstone beads strip about 48pcs each string