San Domingo is a lithium pegmatite project located in the Maricopa and Yavapai counties, Arizona. Access to the project location is via a dirt road and a one hour drive from Wickenberg, being the nearest town that can source basic explorations supplies.

The project consists of 70 BLM placer claims, which are 100% held by Zenolith, covering a total area of 9km x 1.5km.

Initial mapping identified 10 lithium bearing pegmatite dikes, with dimensions of up to 60m in width and 600m in length. The lithium minerals are concentrated in the inner parts of the pegmatite bodies, and may well be present in many of the apparently lithium-free bodies whose outer parts are the only ones exposed

Bradda Head currently holds a 55% interest in the project.

San Domingo
Project Highlights
  • Mapping has identified that the North Morning Star and Midnight Owl pegmatites contain lithium bearing minerals at surface level
  • Rock chip sampling results returned up to 5m @ 1.97% Li2O and 3m @ 1.44% Li2O
  • High grade lithium from dikes over two new sampling zones:
    • Select grab sample returned a high grade of 8.0% Li2O
    • Selective rock-chip sampling returned a very high grade of 5.8% Li2O
    • Systematic composite rock chip sampling returned grades of 2.9m @ 0.86 Li2O, 2.8m @ 0.69% Li2O, 3m @ 0.71% Li2O and 3m @ 0.56% Li2O
  • Further 3 pegmatite dikes are known to occur partly within small claims that are excised from Zenolith’s claims
  • A BLM Notice of Intent has been completed and submitted for exploration activities, together with the required bond for the SW San Domingo pegmatite
Next Steps

A two phase approach will be followed:

Phase 1

An initial 6,710m drill programme of 41 reverse circulation (“RC”) drill holes at Midnight Owl and North Morning Star is proposed, the drilling layout is based on preliminary 3D models created by Zenith Minerals.

At Midnight Owl, 29 RC drillholes to a depth of 150 – 200 metres vertically (4,970m) will assess lithium grade and distribution of a single pegmatite body outcropping with a strike length of some 300m and a width of 50m.

At North Morning Star, 12 RC drillholes to a depth of 150 – 200 metres vertically (1,740m) will assess lithium grade and distribution of multiple pegmatite bodies in an area approximately 400m long and 250m wide.

Key criteria to be assessed will include the lithium grade and distribution, the presence or absence and distribution of any deleterious elements or minerals, the characteristics of the host pegmatite bodies including: density, mineralogy, weathering and oxidation, alteration as well as geotechnical character and water content that may affect eventual mineral processing or mining.   The initial wide spaced drill program is designed to provide adequate information to allow for the estimation of Inferred Mineral Resources at both prospects.

Phase 2

Initial metallurgical studies will be conducted on the lithium-mineralised samples obtained from the drilling programme and a scoping study will be developed.