Internet and cable sales channels have played their part by promoting lower-cost jewellery using lesser-known stones such as iolite, morganite, chrome diopside
, heliodor and kunzite to a wider market.
RING THE CHANGES Okay, so it's not really an emerald but this Ava chrome diopside
gold ring, PS99 from Gemporia (gemporia.com) is still gorgeous.
Kimberlite indicator minerals, including pyrope garnet, chromite, picro-ilmenite, chrome diopside
, and olivine were recovered from 356 samples.
By sampling the silts, sands and gravels of eskers, tills, beach deposits and stream sediments over this vast area, the tell-tale indicator minerals (pyrope and eclogitic garnets, picro-ilmenite, chrome diopside
and chromite) they were led to the Lac de Gras area, 210 km south of the Arctic Circle and 320 km north-east of Yellowknife, capital of the NWT.