Under an iridescent sky (Nacreous or Mother of Pearl clouds)

Under an iridescent sky (Nacreous or Mother of Pearl clouds)

joias6:  lovely Ammonite with iridescent nacreous layers

joias6: lovely Ammonite with iridescent nacreous layers

maya47000:  Nacreous clouds, McMurdo Station, Antarctica by Deven

maya47000: Nacreous clouds, McMurdo Station, Antarctica by Deven

that made me think “do scallops even produce pearls?” and

that made me think “do scallops even produce pearls?” and

fortooate:twinicegiantorbiters:fortooate:twinicegiantorbiters:fortooate:i

fortooate:twinicegiantorbiters:fortooate:twinicegiantorbiters:fortooate:i

astronomyblog:    Polar stratospheric clouds or PSCs, also known

astronomyblog: Polar stratospheric clouds or PSCs, also known

sixpenceee:  They may look like an Impressionist masterpiece,

sixpenceee: They may look like an Impressionist masterpiece,

sixpenceee:  Nacreous Clouds    Nacreous clouds develop in high

sixpenceee: Nacreous Clouds Nacreous clouds develop in high

sixpenceee:  Nacreous Clouds    Nacreous clouds develop in high

sixpenceee: Nacreous Clouds Nacreous clouds develop in high

joias6:  lovely Ammonite with iridescent nacreous layers lovely

joias6: lovely Ammonite with iridescent nacreous layers lovely

sixpenceee:  Nacreous Clouds    Nacreous clouds develop in high

sixpenceee: Nacreous Clouds Nacreous clouds develop in high

joias6:  lovely Ammonite with iridescent nacreous layers lovely

joias6: lovely Ammonite with iridescent nacreous layers lovely

wonders-of-the-cosmos:    Polar stratospheric clouds or PSCs,

wonders-of-the-cosmos: Polar stratospheric clouds or PSCs,

batwingdreams:  By Nacreous Alchemy

batwingdreams: By Nacreous Alchemy