Balkan Mining and Minerals Ltd (BMM or the Company) (ASX: BMM) is pleased to announce the final boron assays from its surface sampling program completed at the Dobrinja project.


  • Final boron assay results from the initial sampling program at Dobrinja project received.
  • Results returned with up to 2,300 ppm of B2O3 (avg. 497 ppm B2O3) indicating a permissive environment for stratabound mineralisation.
  • Preliminary mapping and sampling programs at the Dobrinja Project provide strong evidence of permissive sediments being buried by the younger sedimentary cover.

These surface sampling assay results follow earlier announcements1 on the initial reconnaissance and sampling program and gravity interpretation.

Assays results

After receiving initial results from ALS Ireland, the company requested the lab to ship the sample rejects (pulps) to the ALS lab in Vancouver and to analyse boron by the B-ICP82 method. This method is a single element (B) analysing method designed for “Evaluation of Low - Level Boron by Fusion – ICP - AES”. The received results analysed by the B-ICP82 are expectably higher than those get by ME-ICP41a due to the difference in digestion methods. The B-ICP82 method is considered to represent the “total” and it's the most appropriate method to analyse boron in surface samples.

The elevated boron value > 800 ppm of B2O3 coincident with middle Miocene units that overlay permissive saline-alkaline sediments. The target lower Miocene sediments (P1 and P2) are buried and thus have no outcrops within the project area. A total of 6 samples were collected and returned over 800 ppm of B2O3 (max 2,300 ppm). See table 1 for relevant assay results.

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