The Crescent Property covers the former Tantalizing and PEG claims in southeastern British Columbia, and comprises 933
contiguous acres located
approximately 3 kilometres northwest of Crescent Valley, BC and 24 kilometres west of Nelson, BC. The project area also
includes another REE prospect located
approximately one mile due east of the Crescent and covering an additional 466 contiguous acres formerly known as the JAK
claim group.
The local infrastructure is excellent, as the property is
situated near the Slocan River, is
road accessible, and close to powerlines.
Historical assessment work dating back to 1956 and on file with British Columbia have documented that the Crescent Property
contains pegmatites with high grade pockets of niobium and tantalum. According to ,
“two of the larger
quartzose pegmatite-greisen zones, 300 metres apart, measure 20 by 30 metres and 8 by 30 metres. They consist predominantly of
coarse-grained feldspar with minor quartz and muscovite and contain niobium-tantalum oxide minerals. The black radioactive
minerals are likely samarskite and ilmenorutile or niobium rutile. They occur as disseminations in reddish feldspar and
patches up to 5 centimetres across. A chunk of samarskite assayed 5.8% uranium, 2.5% thorium, 25.7% niobium and 9.8% tantalum
(Minister of Mines Annual Report 1956, page 77). In 1967, a sample from the area assayed 2.2% niobium, 0.14% uranium and 0.32%
yttrium (Metcalfe, 1967). A more recent grab sample from 1985 assayed 1.25% Nb2O5 and 0.14% Ta2O5 (.”
In 2002, a work program was conducted on the adjacent PEG claim 300 metres to the north of the Crescent Nb-Ta occurrence and
presently covered by the Company’s claim area. One of the objectives of the 2002 program was to assess the presence of rare
earth elements (“REE”). Eight rock geochemical samples and one silt sample were collected and analyzed by Acme Laboratories
using an ultratrace ICPMS and by Actlabs using neutron activation for Ta, Nb, Cs, Rb, Sn, Be, Li, U, Th, Sr, La, T, Ga and
REE’s. In general, the samples consisted of coarse grained pegmatitic or megacrystic potassium and
plagioclase feldspars and quartz with minor amounts of micaceous minerals. Some samples were a coarse grained leucocratic
biotite quartz monzonite. Geochemical results indicate anomalies in Ta, Nb, Rb, Be, U, Th, La, Ti and REE’s.
The assay tables contained in reports anomalous indications of almost
all
known REE’s. In
particular, sample number 20773 collected from the southern portion of the claim closest to the Crescent Nb-Ta occurrence
contained 7.4 ppm Ta, 5.69 ppm Nb, 3.4 ppm Be, 102.5 ppm U, 501.4 ppm Th, 99.0 ppm La, and highly anomalous REE’s. Sample
20770 was anomalous for Th (81.7 ppm), La (91.0 ppm), and some of the REE’s. Sample 20772 contained 26.6 ppm Rb, 1.9 ppm Sn,
11.9 ppm Li, 29.6 ppm Sr, 0.103% Ti, 6.1 ppm Ga and some REE anomalies. The table below shows the best composite assay
results from the samples, including several minerals often associated with REE deposits.
Name |
Symbol |
PPM |
Type* |
Lanthanum | La | 99.00 | LREE |
Cerium | Ce | 206.40 | LREE |
Praseodymium | Pr | 29.58 | LREE |
Neodymium | Nd | 109.57 | LREE |
Samarium | Sm | 45.21 | LREE |
Europium | Eu | 0.75 | HREE |
Gadolinium | Gd | 42.48 | HREE |
Terbium | Tb | 5.80 | HREE |
Dysprosium | Dy | 28.16 | HREE |
Holmium | Ho | 3.71 | HREE |
Erbium | Er | 10.40 | HREE |
Thulium | Tm | 1.76 | HREE |
Ytterbium | Yb | 14.04 | HREE |
Lutetium | Lu | 1.72 | HREE |
Yttrium | Y | 148.88 | HREE |
Strontium | Sr | 29.60 | |
Titanium | Ti | 1490.00 | |
Gallium | Ga | 6.40 | |
Cesium | Cs | 1.07 | |
Rubidium | Rb | 53.90 | |
Beryllium | Be | 3.40 | |
Lithium | Li | 15.10 | |
* LREE stands for light rare earth elements (La-Sm)
HREE stands for heavy rare earth elements (Eu-Y)