GOLDSTONE

Handmade goldstone drop earrings

Variety:  Goldstone
Species:  Glass
​​Mohs Hardness:  6 out of 10
Color:  Transparent to opaque, usually brown or blue, but can be any color.
Phenomena:  Aventurescence
RI:  1.470 to 1.700 (can sometimes be OTL)
Birefringence:  None
SR/DR/AGG:  SR with ADR
Spectrum:  Not diagnostic
Fluorescence:  Not diagnostic
SG:  Usually 2.30 to 4.50

Goldstone Facts

Carved goldstone scarab

Goldstone is a variety of glass with a phenomena known as aventurescence.

Goldstone glass has a glittery appearance caused by light reflecting off of many microscopic copper platelets.

​Goldstone is commonly brown or blue, but can be produced in any color.

(Goldstone is commonly mistaken for sunstone, a natural variety of labradorite.)

Goldstone Gallery

All photos courtesy of Scott Papper, GIA GG, AJP, CMA (NAJA)