raw teisky jade hantigyrite rock on black

actinolite background black closeup collection dark decorative gemmological gemmology gemological gemology gemstone geological geology granite gray green hantigyrite hematite jade khakassia khakassian macro magnetite material matrix mineral mineralogical mineralogy natural object ornamental piece raw rock rough sample serpentine serpentinite specimen stone surface teiskiy teiskoye teisky texture unpolished