Identify any rockfrom a photo.

Weathered basalt (likely vesicular basalt)

Basalt, a fine-grained mafic volcanic rock; chiefly plagioclase, pyroxene, and iron-magnesium minerals, with possible olivine

Polished green stone, possibly serpentine or nephrite jade

Serpentine-group minerals, chiefly Mg₃Si₂O₅(OH)₄; alternatively nephrite, a tremolite–actinolite aggregate

Weathered greenstone pebble (probable serpentinite or altered basalt)

Serpentinite-group rock, commonly dominated by antigorite/lizardite; identification is uncertain from the photograph

Tumbled turquoise

Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

Serpentinite

Serpentinite; chiefly serpentine-group minerals (antigorite, lizardite, chrysotile), commonly with magnetite, chlorite, and talc

Polished green fluorite tower

Fluorite (calcium fluoride, CaF₂)

Polished orbicular gabbro tower

Gabbro, likely orbicular/pegmatitic variety; mainly plagioclase feldspar and pyroxene, with possible amphibole, olivine, and magnetite

Polished indigo gabbro tower

Indigo gabbro, a coarse-grained mafic plutonic rock composed chiefly of plagioclase and pyroxene, commonly with dark amphibole/biotite minerals

Weathered quartz-rich pebble

Likely quartzite or quartz-rich granite fragment; exact identification is uncertain from the blurred image

Metallic sulfide-rich rock, possibly pyrite-bearing schist or marcasite specimen

Likely pyrite (FeS₂) in a foliated host rock; exact identification requires testing

Polished labradorite

Labradorite, calcium-rich plagioclase feldspar; approximately (Ca,Na)(Al,Si)₄O₈

Weathered sandstone or iron-rich sedimentary rock

Quartz-rich sandstone, likely ferruginous sandstone (SiO₂ with iron-oxide cement)