Sierra Diamond Exploration: diamond exploration:California,diamond,diamond pipe,diamonds.crater facies,breccia,sierra nevada

The many colors of diamonds

THE DIAMOND STABILITY FIELD HAS BEEN TAPPED!

Material coming from the crater facies eruptive, whole rock, and recent trenching within the vent parameters are shown to contain the following mineralogy: Cr-spinel plot – several grains plot well inside the compositional field of chromite inclusions in diamond. Most grains are interpreted as having been derived from peridotitic source rocks, most likely spinel +/- garnet-bearing dunite, harzburgite, lherzolite and various pyroxenites as indicated by the distribution of data (see "Model"). Minerals viewed to date by credentialed labs include Kasmir Blue type sapphires; and chemistries are similar to those minerals found in commercial diamond mines such as the large Argyle deposit in Australia. Substantial numbers of diamonds have been found in alluvial gold operations in rivers draining the Sierra Nevada mountain range, all of which have been found either within the fan surrounding Sierra Diamond Exploration’s location or downstream from it. Further data is available for review by contacting owner/developer Elinor O'Rourke - 530-532-6425

This is an example of gemstone quality Benitoite. In addition to data proving the Diamond Stability Field has been tapped @ our location, it has been determined we also have Benitoite in our samples from that general location with ongoing exploration and proving of values, for this exciting diamond discovery. During the timeframe,early in our exploration stages, that we were using Western Archon as our Corporate Vehicle, (2002/03) Dan Hausel, one of, if not the World's Foremost Expert in Unconventional Diamond structures, determined Benitoite is an intregal part of the minerals found to exist in our values. See his website @ http://kimberlite.pbwiki.com/EXPERIENCE

A 1.4 carat faceted benitoite recently sold for $3400

The next recommended drilling and mini-bulk sampling program is to commence in the summer of 2007.

It is anticipated our drilling program will pinpoint the gold lying throughout the overlying volcanic breccia covering (overlaying) the pipes of this structure. The 2.4 oz. per ton fire assay indicates values should be located accordingly.

Model

Mineralogy Graphs and Photos

Contact Elinor O'Rourke - 530-532-6425
lynngems1@sbcglobal.net

No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein. The information in this Website includes certain "forward-looking statements".

All statements other than statements of historical or academic fact, included in this site, including, without limitation statements regarding potential mineralization and possible reserves, explorations results and future plans and objectives of Sierra Diamond Exploration, are forward looking statements that involve various risks and uncertainties. There can be no assurance that such statements will provide results for future events.