TNR Gold Corp (TNR) is pleased to announce the acquisition of the Mavis Lake Project.  The project encompasses nine identified rare-element bearing pegmatites within a 32 hectare claim block.  The property is located approximately 15km northeast of the town of Dryden, Ontario and is road accessible.

 TNR has staked the property with the intent to further define the known lithium, tantalum and related rare-element showings on the property. 

 The Mavis Lake Project covers the eastern extent of the Mavis Lake pegmatite group, an east-trending concentration of rare-element-bearing pegmatites and related metasomatic zones.  The nine known pegmatites on the property are denoted as Pegmatite 11 through to Pegmatite 19 respectively.  The pegmatites are a mix of albite-spodumene-type and albite-type pegmatites (Breaks, 2003). 

 Lithium and tantalum values to note in Mavis Lake albite-type pegmatites are:

(Breaks, email 2009)

Lithium Mineralization:

Pegmatites 11, 12, 17 and 18, have been classified as albite-spodumene-type pegmatites.  This type of pegmatite typically contains the highest spodumene [LiAl(Si2O₆)] content of any pegmatite type (Breaks, email 2009). Pegmatite 18 contains 53% volume spodumene (Breaks Ph.D. thesis 1989, p. 104).

Tantalum Mineralization:

Tantalum-bearing minerals were confirmed in albite-type and albite-spodumene pegmatites on the Mavis Lake property by 94 electron microprobe analysis. These minerals were verified as Mn-tantalite, Mn-columbite and wodginite group [(Mn(Sn,Ta)Ta₂O₈] (2003 Ontario Geological Survey MRD 127).

'Wodginite is the chief ore mineral for tantalum at the world-famous Tanco pegmatite in SE Manitoba and hence the presence of this rare mineral group in the Mavis Lake claim-block underscores the exploration potential for tantalum' (Breaks, email 2009).

 Additional mineralization to note is the presence of the tungsten ore, scheelite [Ca(WO₄)] in vein systems proximal to Pegmatites 13, 14 and 16, as well as beryl in Pegmatites 13, 14 and 15 (Breaks, 1989).  

The Mavis Lake Project contains known lithium and tantalum bearing pegmatites.  TNR plans to investigate the showings to further outline the economic potential of the property.