Canadian Zinc Corporation (TSX: CZN; OTCQB: CZIF) and Buchans Minerals Corporation (BMC) provided an update on ongoing metallurgical testing and the dense media separation testing (DMS). The companies have agreed to jointly undertake a research program aimed at  investigating the technical viability of developing their deposits through a central mining facility.
As quoted in the press release:

Both Companies have completed bench scale dense media separation (“DMS”) testing and are undertaking metallurgical studies on their respective NI 43-101 defined mineral deposits. Highlights to date of the DMS and metallurgical testing include:
• Preconcentration of the ore by DMS (prior to flotation) was determined to be technically viable for semi-massive and stringer sulphide samples from the BoomerangDomino, Lemarchant, Long Lake, Bobbys Pond and Daniels Pond deposits.
• Initial flotation tests indicate the deposits are amenable to a common flotation flowsheet with the sequential Cu-Pb-Zn flotation flowsheet providing the best overall performance for all four deposits tested. Further development of the sequential flotation by bench scale testing is in progress.

Click here for the full press release.