Triboluminescent Quartz - Triboluminescent State

From the local rockyard comes this 5" wide specimen of common milky quartz. When ground against another piece of quartz, orange light is produced from triboluminescence.

 

The orange 630nm emission is attributed to electronic excitation of the non-bridging oxygen hole centers which is created when the crystalline structure of the quartz is broken.

 

See: mpalffy.lci.kent.edu/Optics/Presentations%202012/Tribolum...

 

Contains:

Quartz (non FL >UVabc)

 

Shown in triboluminescent state while being rubbed against another piece of quartz.

 

Key:

WL = White light (halogen + LED)

FL = Fluoresces

PHOS = Phosporescent

UVa = 368nm (LW), UVb = 311nm (MW), UVc = 254nm (SW)

'>' = "stimulated by:", '!' = "bright", '~' = "dim"

 

Obtained from Highland Rocks and Gems' Rockyard, Burns OR, USA.

 

Series best viewed in Light Box mode using Right and Left arrows to navigate.

Done